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General Politics => Political Geography & Demographics => Topic started by: Oryxslayer on February 05, 2020, 11:53:58 AM



Title: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 05, 2020, 11:53:58 AM
Michigan

Michigan is one of several states who are changing their redistricting laws this cycle, although Michigan is certainly the state changing their laws the most. With their new commission, Michigan’s previous redistricting history matters very little and instead the history from other commission states deserves greater attention. The rules, influencers, and geographic breakdown of this commission matter more than people’s previous actions and the party’s goals. This examination is therefore going to be a bit different from ones that have come before.

Link to 2010 Atlas Discussion (https://uselectionatlas.org/FORUM/index.php?topic=127927.0)

Redistricting History

Michigan had Republican trifectas in both 2000 and 2010, and both times they drew maps to increase the amount of accessible GOP seats. Both times the GOP kept to redistricting guidelines adopted in the 1990s when control was divided between the parties. They had every reason to stick to them - these guidelines favored the ‘modern’ Republican coalitions geographic breakdown. The times had changed, and what had once been a good-govt proposal now was abused by the GOP. Counties and municipal lines needed to be respected as much as possible, and that various local lines that were smaller than a congressional district needed to be inside a single district. These guidelines incentivize cutting the larger counties and keeping the multitude of GOP rural counties whole.

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Michigans 15 Congressional Districts from 2002-2010, Sourced from Wikipedia

Of course, the goals of the two different GOP governments were divergent because the various entrenched democratic interests were in different parts of the state. Bart Stupak was locked into the northern first district, which in the 1990s resembled its present incarnation and contained the GOP stronghold of Traverse City. The Detroit region and its suburbs were also carved up to favor to democrats, particularly in Macomb and the near side of Oakland. That needed to change. The big 1st was made into a new rural pack for the north of the state to free up what GOP suburbs were in the region. This 10th was entirely new based out of the red rural thumb and Republican suburbs. The 12th was designed explicitly to pack in the near-side spillover from Detroit and make the suburban seats safer. The rest of the map was pushed around to maximize Republican safety.

Now, the Democrats won a special election on the old map, but that special was held concurrent with a new election on the new map which the Republicans won. David Curson’s 2-month tenure is one of the shortest in congressional history, since he had only been elected to fill a vacancy.

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Michigans 14 Congressional Districts since 2010, Sourced from Wikipedia

2010 was an entirely different beast. The previous map had held up well until the democratic waves came crashing through, and the democrats flipped control of the state delegation. The 9-6 was back in 2010 though, only this time Stupak had been traded for the 9th in Oakland. Once again, the GOP moved against the Detroit region, but the rest of the map was reinforced to protect their incumbents. The AA Detroit seats now tentacled out into the suburbs to pack in growing minority communities. The 5th packed in even more of the Tri-Cities, but also cracked the upstate in case rural Dems came back. The 1st got Traverse city back out of a similar desire to lock down the peninsula against a potential working-class democratic comeback. Like before, the rest of the state was carved up in order to spread out democratic cities and ensure no seat would ever truly be in danger.

Since 2011

I won’t really bother with much here because the previous process is changing. The democrats tried to crack the old map where Obama was strongest, and they consistently failed. It required the 2018 wave for the democrats to break through the gerrymander and make the map 7-7. However, the gerrymanders have held at the legislative level, even as the democrats win the statewide vote.

The most important thing to happen this decade around redistrict was addressed in the header. In 2018 Michigan overwhelmingly passed proposal 2, which creates an independent commission responsible for future redistricting efforts. The GOP keeps mounting legal challenges, but so far, the commission remains intact and appears to have full authority next year. The whims of legislators will no longer directly decide Michigan’s maps.

2021

So, let’s talk about this Michigan commission. (https://www.michiganradio.org/post/redistricting-proposal-passes-michigan) The commission has 13 members: 4, Democrats, 4 Republicans, and 5 Independents. These commissioners cannot be employed or connected to any government employee or lobbyist. The test for these commissioners is adequate self-identification with one of the three relevant groups. Now, self-identification would normally be a problem especially when compared to measurable tests of partisanship like party ID or past vote records. However, Michigan appears to have anticipated these fears. At the start of the process, the Michigan SOS (Jocelyn Benson, Democrat) will randomly mail at least 10K voters to select them for the commission. The SOS has stated she sent invitations to 250K voters (https://www.michiganradio.org/post/many-michigan-registered-voters-seeking-serve-new-redistricting-commission), and already over 1,000 have been successfully processed their application. This is random selection, not self-selection like in California. From here, the SOS will select 60 partisans of each color and 80 independents of adequate quality to potentially serve on the commission. The majority and minority leaders of each chamber can strike up to 5 candidates from the pool of 200 each (reducing it to 180), in order to remove visible turncoats. From there, the rest of the applicants will be put in their individual pools and randomly drawn to fill the four/four/five seats for that pool.

Michigan’s entire process is steeped in random selection to ensure the commission is legitimate. Even if that fails, the passage requirements should prevent malicious actors. The maps need only be passed by a simple majority (unlike a supermajority in some commission states), but that majority needs to include at least two Republicans, two Democrats, and two unaffiliated. Therefore, it is clear that the partisan commissioners need to work together. Rather than partisan infiltrators or malicious actors, we should perhaps fear ignorance instead. The shear amount of randomness means that we may end up with uninformed or sheepish commissioners who will follow the brash personalities of parochialists or a single commission clique. We don’t know, and frankly, that’s just part of the commission process.

Looking at California, Washington, Arizona, and other states that cared about public input in 2010, we get a general idea of the process to a commission-drawn map. The committee will schedule public hearings to meet with citizens across the state. Through this process, hypothetical maps may be released to guide the discussion on potential pairings of COIs. Protecting communities of interest, race, and local geography is important under the mandate of the law. Sometimes discussion may be guided by the media or outside influencers trying to ‘push’ the commission towards a particular outcome. Republicans for instance got the idea of a <50% white district in Washington into the public discourse, and the California commission was famously lobbied unsuccessfully by an “soundproofed neighborhood group” which was designed to twist LA districts to an incumbent’s benefit. Eventually, they will hire a firm and give them guidelines on what should go where and what things to look for in their lines. The map will then be presented before the public, and may face subsequent changes depending on public demands. One such call that came up a bit ago was the pairing of the rural thumb with upstate, along the shores of Lake Huron through Bay City.

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ACS Michigan Population Change, map credits to Cinyc. It is a projection though, and the county lines will not be as stark in the final count.

So, what might this new map look like? The first question that needs to be addressed is that of the lost district. Taking a look at the current growth estimates, things are rather patchy. Detroit is shrinking, as usual, but her suburbs are growing. Outside of the metro area we see that while some rural and small-town communities are losing population, others are gaining. The western shore, Grand Rapids, and Lansing in that regard are doing well for themselves. Now, for the past two decades the GOP forced the cut district upon Detroit. This makes sense in the context of their partisan goals, and when you consider the regions population losses, but the side effect is that the whole area ends up with less districts than its pop would normally demand. It is partially why on the present map you have multiple GOP districts grabbing random parts of the metro area. Perhaps therefore the 2020 cut will be forced upon the rest of the state outside of the Detroit metro area, though this is a commission so who knows.

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What a Hypothetical 'Huron coast' district could look like

We then move on to the more interesting discussion: Communities of Interest. Michigan has a lot of them, and they will likely be bickering about who deserves to go where and why. I’m just going to list off some of these communities, some are obvious, others are less so. The two AA districts are likely to shrink into Wayne for compactness reasons and drop below 50% AA (but still high enough to dominate a primary) but what communities will go in said districts are a open question. Is Ann Arbor going to be paired with Wayne or it’s more college educated neighbors in the suburbs? Do North Macomb and Oakland constitute a COI (potentially shared with other areas) even though it crossed county line? Should the Grosse Pointe’s go with their more likeminded brothers in Macomb, rather than their natural neighbors in Wayne? Should there be an ‘arab access’ district with areas like Plymouth, Livonia, Dearborn, and Hamtramck? Should the shores of Lake Michigan and Huron be considered huge COIs?  If they do, they conflict with other COIs like the Flint/Saginaw/Midland/Bay City ‘tri-cities’ region in the east and the Grand Rapids metro region in the west. Is the tri-cities even a good region since some cities have strong AA presences and others do not? What about Mount Pleasant – should it go with the nearest similar university in Lansing? How about Kalamazoo and Battle Creek? These questions and countless more will be answered during public hearing.

What’s left to Decide

N/A. The committee does not directly consider incumbent residencies or incumbent partisanship as part of their mandate. It’s very likely some representatives will have to change their address if they want to continue to have a chance at serving in Washington.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 05, 2020, 12:06:05 PM
I've been working on some potential state legislative maps for Michigan, as those are reasonably easy to predict if you're following good government grounds of minimising city and county splits. I'll try to type those up and put them here.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 05, 2020, 01:32:29 PM
Ottawa County under 2010 numbers is sufficient for one SD by itself but under 2016 block estimates it is no longer so.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 12:58:29 AM
https://davesredistricting.org/join/21a90af8-a1a5-4a7f-b51c-ef28e70cbfe6
https://davesredistricting.org/join/db73d662-b1fc-4fb4-acf6-905ad66fef2a
2 potential maps.  Detroit area gets shifted a lot once drawing a map based on compactness rather than tendrils for partisan reasons.  The only main difference between my 2 maps is whether Flint and Lansing are in the same district.  A decade ago that would've been seen as a Dem pack but looking forward it makes a Clinton+14 (ideal margin, enough to be safe but not so lopsided it wastes Dem votes) seat outside of Detroit metro.  Without combining the 2 cities, it's difficult to create a safe dem district outside of Detroit, due to political geography.  My second map gives Flint and Lansing each their own districts, but both districts are competitive, one leaning R one leaning D.  It is true Trump wins a majority of seats on both maps, but that is basically inevitable due to political geography on any fair map.  Dems are heavily packed into Wayne County (which can't be cracked due to the VRA) and sprinkled out throughput the rest of the state.  Any map where Clinton wins 7 or even 6 seats is probably a Dem gerrymander, compensating for Dem's geographical disadvantage rather than drawing fair lines.  The real debate will on exactly what each side wants to compromise on, and whether each side values more safe seats or more competitive seats. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 06, 2020, 06:45:19 AM
I think it's pretty clear that no Democratic-favouring map is going to seek to put Washtenaw and Wayne in the same district. Based off the 2018 population numbers, Wayne, Macomb and Oakland have a combined entitlement to only just over 5 congressional districts, which frees up Washtenaw to soak up Republican turf in South East Michigan.

Alternatively, if that's not happening then I would expect Flint to be paired with Saginaw and Bay in a Democratic map, given that Kildee doesn't look to be vulnerable on the present lines.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 06, 2020, 07:08:47 AM
https://davesredistricting.org/join/21a90af8-a1a5-4a7f-b51c-ef28e70cbfe6
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2 potential maps.  Detroit area gets shifted a lot once drawing a map based on compactness rather than tendrils for partisan reasons.  The only main difference between my 2 maps is whether Flint and Lansing are in the same district.  A decade ago that would've been seen as a Dem pack but looking forward it makes a Clinton+14 (ideal margin, enough to be safe but not so lopsided it wastes Dem votes) seat outside of Detroit metro.  Without combining the 2 cities, it's difficult to create a safe dem district outside of Detroit, due to political geography.  My second map gives Flint and Lansing each their own districts, but both districts are competitive, one leaning R one leaning D.  It is true Trump wins a majority of seats on both maps, but that is basically inevitable due to political geography on any fair map.  Dems are heavily packed into Wayne County (which can't be cracked due to the VRA) and sprinkled out throughput the rest of the state.  Any map where Clinton wins 7 or even 6 seats is probably a Dem gerrymander, compensating for Dem's geographical disadvantage rather than drawing fair lines.  The real debate will on exactly what each side wants to compromise on, and whether each side values more safe seats or more competitive seats. 

As the Arizona independent commission has proved, independent commissions actually don't draw bipartisan gerrymanders or give any consideration to the political interests of the parties. The Michigan Independent Commission has very clear criteria which they must abide by in this order:
Equal Population, Geographical Contiguity, Communities of Interest, Partisan Fairness, favouring or disfavouring incumbents, respecting county and municipal boundaries and compactness.
And I'll just quote the Michigan Constitution on the fourth criteria
Quote
(d) Districts shall not provide a disproportionate advantage to any political party. A disproportionate advantage to a political party shall be determined using accepted measures of partisan fairness.
The commission will draw a map similar to those the AZ commission draws. Prioritising COIs, Compactness and Partisan Fairness (so an 8-5 map is clearly not acceptable) and not giving any consideration to the concerns and demands of political parties.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 06, 2020, 10:41:21 AM
I had a quick go at designing what a Democratic congressional map might look like. The places where the thumb is put on the scale are pretty obvious, but some of them are probably things that could be justified in an actual map. I've used the population estimates for counties and county sub-divisions for 2018. They don't quite match up to what the figures will be for 2020, but it's probably close enough.

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MI-1: C 35.6% T 58.8% - safe R.
MI-2: C 37.5% T 56.5% - safe R. Probably more Moolenaar's district than Huizenga's, though neither lives there.
MI-3: C 42.9% T 50.2% - likely R. Maybe you could make this competitive if you combined Grand Rapids with Muskegon or Kalamazoo and stripped out the suburbs, but that's never realistically going to happen.
MI-4: C 47.8% T 46.1% - lean D. A Lansing-based central Michigan district ought to exist under any fair map, but if you top it out with counties to its south then Democratic prospects are much better than if you go north.
MI-5: C 48% T 46.9% - likely D. Possibly a worry if the competitiveness on the presidential level starts to manifest itself at a congressional level, but if that happens Democrats are screwed in Michigan anyway.
MI-6: C 38.9% T 54.9% - safe R. A more aggressive gerrymander would strip out Kalamazoo, but I wanted halfway clean lines away from Detroit.
MI-7: C 53% T 41.6% - safe D. Possibly only likely, but the Democratic base here is pretty inflexible. Keeping Washtenaw and Wayne separate ought to be a key Democratic objective.
MI-8: C 47.7% T 47.6% - lean D/toss-up. Livingston is drowned out with Democratic-trending bits of Oakland. Very vulnerable if Republicans improve their performance in highly-educated areas, but as it is Slotkin has nothing to complain about.
MI-9: C 52.9% T 42.6% - likely D. The most obviously gerrymandered district, because I didn't want to concede a seat in Macomb. If it drops Southfield to bolster MI-11 or MI-13 then you could make it less obvious, but it would be much more competitive.
MI-10: C 32.6% T 62% - safe R.
MI-11: C 61.8% T 34.8% - safe D. 50.1% white, 42.8% black. It's perhaps pushing it whether this counts as a VRA district, but the Democratic primary is certainly black-majority so it's probably OK.
MI-12: C 54.3% T 40.8% - safe D. This is designed as the white Wayne County district, so I can send both the VRA districts across county lines to soak up white Republican voters.
MI-13: C 65.9% T 30.6% - safe D. 46.7% white, 40.6% black, 9.8% Hispanic.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 06, 2020, 11:25:40 AM
I think something similar, albeit likely less gerrymandered to your MI-11 could be one of the focal points of discussion. Sending one of the VRA seats north into Macomb to grab the near suburbs does wonders to ease the burden of the map when it comes to partisan balance, at least in PA-2018 style of thinking. There however are  two big problems with it. First, it prevents macomb from having a seat nested out of the county, which could be a swing seat - especially if you consider the Grosse Pointe's extensions of Macomb culturally. Second, 8-mile road is arguably the clearest COI divider in the state and we should probably avoid cracking it whenever possible.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 06, 2020, 12:02:27 PM
8 Mile Road has certainly been a COI divider historically, but is that still true to the same extent? Eastpointe isn't far off an African-American plurality at this point and similar changes can be seen in the south of Warren, so it's arguable that that dam has finally broken there.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 06, 2020, 01:06:45 PM
I tried out a light D-favoring map as well and came up with the below. It's still only a 7D-6R map, and the 7D seats aren't all super-safe. Sort of a tough map for the Democrats to get something good out of, especially given the constraints on map-drawing. I ended up with a very different approach from the map above, and maybe that map is better. I felt bad about stranding Saginaw in a Safe R district, e.g. Might try fiddling around with this more.

https://davesredistricting.org/join/96a9fba0-1c69-4fea-bec5-d31421ca6b6f

Edit: Actually, inspired by other maps on here, here's what I think is a much better map. This one could be 9D-4R if the Democrats are lucky (the Grand Rapids district voted for Trump by less than 1,000 votes) and has 8 Clinton districts:

https://davesredistricting.org/join/96a9fba0-1c69-4fea-bec5-d31421ca6b6f


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 06, 2020, 05:06:34 PM
I tried to make the most "plain" map that I could.  I really didn't favor either party or take PVI into account at all (except I guess the Detroit Metro).  I'd think the commission would go with something close to this, if they favor COI's and not splitting counties and so on.

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What would actually really help is only drawing one majority AA district in the Detroit metro.   It allows the remaining AA vote to be distributed much more efficiently.   Other than that just a typical map where each major metro gets it's own district.

I actually really like the MI-2 (purple) district here.  I grew up in the area and the west coast area does have it's own community.  It has way more in common than the MI-1 area (dark green), which is more country-bumpkinish.   Both are safe R though.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 05:14:12 PM
https://davesredistricting.org/join/21a90af8-a1a5-4a7f-b51c-ef28e70cbfe6
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2 potential maps.  Detroit area gets shifted a lot once drawing a map based on compactness rather than tendrils for partisan reasons.  The only main difference between my 2 maps is whether Flint and Lansing are in the same district.  A decade ago that would've been seen as a Dem pack but looking forward it makes a Clinton+14 (ideal margin, enough to be safe but not so lopsided it wastes Dem votes) seat outside of Detroit metro.  Without combining the 2 cities, it's difficult to create a safe dem district outside of Detroit, due to political geography.  My second map gives Flint and Lansing each their own districts, but both districts are competitive, one leaning R one leaning D.  It is true Trump wins a majority of seats on both maps, but that is basically inevitable due to political geography on any fair map.  Dems are heavily packed into Wayne County (which can't be cracked due to the VRA) and sprinkled out throughput the rest of the state.  Any map where Clinton wins 7 or even 6 seats is probably a Dem gerrymander, compensating for Dem's geographical disadvantage rather than drawing fair lines.  The real debate will on exactly what each side wants to compromise on, and whether each side values more safe seats or more competitive seats. 

As the Arizona independent commission has proved, independent commissions actually don't draw bipartisan gerrymanders or give any consideration to the political interests of the parties. The Michigan Independent Commission has very clear criteria which they must abide by in this order:
Equal Population, Geographical Contiguity, Communities of Interest, Partisan Fairness, favouring or disfavouring incumbents, respecting county and municipal boundaries and compactness.
And I'll just quote the Michigan Constitution on the fourth criteria
Quote
(d) Districts shall not provide a disproportionate advantage to any political party. A disproportionate advantage to a political party shall be determined using accepted measures of partisan fairness.
The commission will draw a map similar to those the AZ commission draws. Prioritising COIs, Compactness and Partisan Fairness (so an 8-5 map is clearly not acceptable) and not giving any consideration to the concerns and demands of political parties.
[/quote
a map with partisan fairness won't always have a partisan breakdown identical to the state due to political geography.  Ironically doing so could be a gerrymander for one party. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 06, 2020, 05:19:08 PM
https://davesredistricting.org/join/21a90af8-a1a5-4a7f-b51c-ef28e70cbfe6
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2 potential maps.  Detroit area gets shifted a lot once drawing a map based on compactness rather than tendrils for partisan reasons.  The only main difference between my 2 maps is whether Flint and Lansing are in the same district.  A decade ago that would've been seen as a Dem pack but looking forward it makes a Clinton+14 (ideal margin, enough to be safe but not so lopsided it wastes Dem votes) seat outside of Detroit metro.  Without combining the 2 cities, it's difficult to create a safe dem district outside of Detroit, due to political geography.  My second map gives Flint and Lansing each their own districts, but both districts are competitive, one leaning R one leaning D.  It is true Trump wins a majority of seats on both maps, but that is basically inevitable due to political geography on any fair map.  Dems are heavily packed into Wayne County (which can't be cracked due to the VRA) and sprinkled out throughput the rest of the state.  Any map where Clinton wins 7 or even 6 seats is probably a Dem gerrymander, compensating for Dem's geographical disadvantage rather than drawing fair lines.  The real debate will on exactly what each side wants to compromise on, and whether each side values more safe seats or more competitive seats. 

As the Arizona independent commission has proved, independent commissions actually don't draw bipartisan gerrymanders or give any consideration to the political interests of the parties. The Michigan Independent Commission has very clear criteria which they must abide by in this order:
Equal Population, Geographical Contiguity, Communities of Interest, Partisan Fairness, favouring or disfavouring incumbents, respecting county and municipal boundaries and compactness.
And I'll just quote the Michigan Constitution on the fourth criteria
Quote
(d) Districts shall not provide a disproportionate advantage to any political party. A disproportionate advantage to a political party shall be determined using accepted measures of partisan fairness.
The commission will draw a map similar to those the AZ commission draws. Prioritising COIs, Compactness and Partisan Fairness (so an 8-5 map is clearly not acceptable) and not giving any consideration to the concerns and demands of political parties.
a map with partisan fairness won't always have a partisan breakdown identical to the state due to political geography.  Ironically doing so could be a gerrymander for one party. 
You are talking about drawing a map without consideration of partisanship. Partisan fairness means drawing a map that represents the politics of the state, and it does mean drawing lines to achieve that, as Independent Commissions already do. Trump 7-6 Clinton seems like a reasonable assumption, with one competitive D seat and one or two competitive R seats.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 05:19:26 PM
I tried to make the most "plain" map that I could.  I really didn't favor either party or take PVI into account at all (except I guess the Detroit Metro).  I'd think the commission would go with something close to this, if they favor COI's and not splitting counties and so on.

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()

https://davesredistricting.org/join/86c3575b-47c5-455b-bdef-ba4557967108

What would actually really help is only drawing one majority AA district in the Detroit metro.   It allows the remaining AA vote to be distributed much more efficiently.   Other than that just a typical map where each major metro gets it's own district.

I actually really like the MI-2 (purple) district here.  I grew up in the area and the west coast area does have it's own community.  It has way more in common than the MI-1 area (dark green), which is more country-bumpkinish.   Both are safe R though.
Illegal map, need 2 AA seats in Detroit.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 06, 2020, 05:21:35 PM
I tried to make the most "plain" map that I could.  I really didn't favor either party or take PVI into account at all (except I guess the Detroit Metro).  I'd think the commission would go with something close to this, if they favor COI's and not splitting counties and so on.

()

()

https://davesredistricting.org/join/86c3575b-47c5-455b-bdef-ba4557967108

What would actually really help is only drawing one majority AA district in the Detroit metro.   It allows the remaining AA vote to be distributed much more efficiently.   Other than that just a typical map where each major metro gets it's own district.

I actually really like the MI-2 (purple) district here.  I grew up in the area and the west coast area does have it's own community.  It has way more in common than the MI-1 area (dark green), which is more country-bumpkinish.   Both are safe R though.
Illegal map, need 2 AA seats in Detroit.

I don't think it'll even be possible to draw two AA majority seats in Detroit anymore,  the numbers aren't there anymore.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 05:23:29 PM
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2 potential maps.  Detroit area gets shifted a lot once drawing a map based on compactness rather than tendrils for partisan reasons.  The only main difference between my 2 maps is whether Flint and Lansing are in the same district.  A decade ago that would've been seen as a Dem pack but looking forward it makes a Clinton+14 (ideal margin, enough to be safe but not so lopsided it wastes Dem votes) seat outside of Detroit metro.  Without combining the 2 cities, it's difficult to create a safe dem district outside of Detroit, due to political geography.  My second map gives Flint and Lansing each their own districts, but both districts are competitive, one leaning R one leaning D.  It is true Trump wins a majority of seats on both maps, but that is basically inevitable due to political geography on any fair map.  Dems are heavily packed into Wayne County (which can't be cracked due to the VRA) and sprinkled out throughput the rest of the state.  Any map where Clinton wins 7 or even 6 seats is probably a Dem gerrymander, compensating for Dem's geographical disadvantage rather than drawing fair lines.  The real debate will on exactly what each side wants to compromise on, and whether each side values more safe seats or more competitive seats. 

As the Arizona independent commission has proved, independent commissions actually don't draw bipartisan gerrymanders or give any consideration to the political interests of the parties. The Michigan Independent Commission has very clear criteria which they must abide by in this order:
Equal Population, Geographical Contiguity, Communities of Interest, Partisan Fairness, favouring or disfavouring incumbents, respecting county and municipal boundaries and compactness.
And I'll just quote the Michigan Constitution on the fourth criteria
Quote
(d) Districts shall not provide a disproportionate advantage to any political party. A disproportionate advantage to a political party shall be determined using accepted measures of partisan fairness.
The commission will draw a map similar to those the AZ commission draws. Prioritising COIs, Compactness and Partisan Fairness (so an 8-5 map is clearly not acceptable) and not giving any consideration to the concerns and demands of political parties.
a map with partisan fairness won't always have a partisan breakdown identical to the state due to political geography.  Ironically doing so could be a gerrymander for one party. 
You are talking about drawing a map without consideration of partisanship. Partisan fairness means drawing a map that represents the politics of the state, and it does mean drawing lines to achieve that, as Independent Commissions already do. Trump 7-6 Clinton seems like a reasonable assumption, with one competitive D seat and one or two competitive R seats.
But once you account for COIs, 2 vra seats in Detroit, ect it's difficult to get 6  Clinton seats. It is possible with 4 in Detroit, 1 in Flint, and 1 in Lansing, but it's risky for Dems because margins in the Detroit and Lansing seats would be razor thin.  In order to pass a bipartisan commission, you can't draw a Dem gerrymander.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 06, 2020, 05:24:59 PM
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2 potential maps.  Detroit area gets shifted a lot once drawing a map based on compactness rather than tendrils for partisan reasons.  The only main difference between my 2 maps is whether Flint and Lansing are in the same district.  A decade ago that would've been seen as a Dem pack but looking forward it makes a Clinton+14 (ideal margin, enough to be safe but not so lopsided it wastes Dem votes) seat outside of Detroit metro.  Without combining the 2 cities, it's difficult to create a safe dem district outside of Detroit, due to political geography.  My second map gives Flint and Lansing each their own districts, but both districts are competitive, one leaning R one leaning D.  It is true Trump wins a majority of seats on both maps, but that is basically inevitable due to political geography on any fair map.  Dems are heavily packed into Wayne County (which can't be cracked due to the VRA) and sprinkled out throughput the rest of the state.  Any map where Clinton wins 7 or even 6 seats is probably a Dem gerrymander, compensating for Dem's geographical disadvantage rather than drawing fair lines.  The real debate will on exactly what each side wants to compromise on, and whether each side values more safe seats or more competitive seats. 

As the Arizona independent commission has proved, independent commissions actually don't draw bipartisan gerrymanders or give any consideration to the political interests of the parties. The Michigan Independent Commission has very clear criteria which they must abide by in this order:
Equal Population, Geographical Contiguity, Communities of Interest, Partisan Fairness, favouring or disfavouring incumbents, respecting county and municipal boundaries and compactness.
And I'll just quote the Michigan Constitution on the fourth criteria
Quote
(d) Districts shall not provide a disproportionate advantage to any political party. A disproportionate advantage to a political party shall be determined using accepted measures of partisan fairness.
The commission will draw a map similar to those the AZ commission draws. Prioritising COIs, Compactness and Partisan Fairness (so an 8-5 map is clearly not acceptable) and not giving any consideration to the concerns and demands of political parties.
a map with partisan fairness won't always have a partisan breakdown identical to the state due to political geography.  Ironically doing so could be a gerrymander for one party. 
You are talking about drawing a map without consideration of partisanship. Partisan fairness means drawing a map that represents the politics of the state, and it does mean drawing lines to achieve that, as Independent Commissions already do. Trump 7-6 Clinton seems like a reasonable assumption, with one competitive D seat and one or two competitive R seats.
But once you account for COIs, 2 vra seats in Detroit, ect it's difficult to get 6  Clinton seats. It is possible with 4 in Detroit, 1 in Flint, and 1 in Lansing, but it's risky for Dems because margins in the Detroit and Lansing seats would be razor thin.  In order to pass a bipartisan commission, you can't draw a Dem gerrymander.
Once again, it isn't a bipartisan commission. It's an independent commission. There is a difference between them that you don't seem to understand.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 05:26:36 PM
I tried to make the most "plain" map that I could.  I really didn't favor either party or take PVI into account at all (except I guess the Detroit Metro).  I'd think the commission would go with something close to this, if they favor COI's and not splitting counties and so on.

()

()
They don't have to be a majority, just in the high 40s so the black candidate of choice is likely to win.  Your map screws black voters in Detroit and Republicans would oppose it as a Dem gerrymander.  

https://davesredistricting.org/join/86c3575b-47c5-455b-bdef-ba4557967108

What would actually really help is only drawing one majority AA district in the Detroit metro.   It allows the remaining AA vote to be distributed much more efficiently.   Other than that just a typical map where each major metro gets it's own district.

I actually really like the MI-2 (purple) district here.  I grew up in the area and the west coast area does have it's own community.  It has way more in common than the MI-1 area (dark green), which is more country-bumpkinish.   Both are safe R though.
Illegal map, need 2 AA seats in Detroit.

I don't think it'll even be possible to draw two AA majority seats in Detroit anymore,  the numbers aren't there anymore.
doesn't have to be a majority, look at southeast VA.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 05:27:08 PM
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2 potential maps.  Detroit area gets shifted a lot once drawing a map based on compactness rather than tendrils for partisan reasons.  The only main difference between my 2 maps is whether Flint and Lansing are in the same district.  A decade ago that would've been seen as a Dem pack but looking forward it makes a Clinton+14 (ideal margin, enough to be safe but not so lopsided it wastes Dem votes) seat outside of Detroit metro.  Without combining the 2 cities, it's difficult to create a safe dem district outside of Detroit, due to political geography.  My second map gives Flint and Lansing each their own districts, but both districts are competitive, one leaning R one leaning D.  It is true Trump wins a majority of seats on both maps, but that is basically inevitable due to political geography on any fair map.  Dems are heavily packed into Wayne County (which can't be cracked due to the VRA) and sprinkled out throughput the rest of the state.  Any map where Clinton wins 7 or even 6 seats is probably a Dem gerrymander, compensating for Dem's geographical disadvantage rather than drawing fair lines.  The real debate will on exactly what each side wants to compromise on, and whether each side values more safe seats or more competitive seats.  

As the Arizona independent commission has proved, independent commissions actually don't draw bipartisan gerrymanders or give any consideration to the political interests of the parties. The Michigan Independent Commission has very clear criteria which they must abide by in this order:
Equal Population, Geographical Contiguity, Communities of Interest, Partisan Fairness, favouring or disfavouring incumbents, respecting county and municipal boundaries and compactness.
And I'll just quote the Michigan Constitution on the fourth criteria
Quote
(d) Districts shall not provide a disproportionate advantage to any political party. A disproportionate advantage to a political party shall be determined using accepted measures of partisan fairness.
The commission will draw a map similar to those the AZ commission draws. Prioritising COIs, Compactness and Partisan Fairness (so an 8-5 map is clearly not acceptable) and not giving any consideration to the concerns and demands of political parties.
a map with partisan fairness won't always have a partisan breakdown identical to the state due to political geography.  Ironically doing so could be a gerrymander for one party.  
You are talking about drawing a map without consideration of partisanship. Partisan fairness means drawing a map that represents the politics of the state, and it does mean drawing lines to achieve that, as Independent Commissions already do. Trump 7-6 Clinton seems like a reasonable assumption, with one competitive D seat and one or two competitive R seats.
But once you account for COIs, 2 vra seats in Detroit, ect it's difficult to get 6  Clinton seats. It is possible with 4 in Detroit, 1 in Flint, and 1 in Lansing, but it's risky for Dems because margins in the Detroit and Lansing seats would be razor thin.  In order to pass a bipartisan commission, you can't draw a Dem gerrymander.
Once again, it isn't a bipartisan commission. It's an independent commission. There is a difference between them that you don't seem to understand.
There are members of both parties, and people from each party need to agree on a map.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 05:49:49 PM
https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54
Ok I actually was able to make a 7-6 map that isn't a blatant Dem gerrymander (like cracking Macomb) and follows the VRA (unlike a certain other map).  It also maintains COIs well.  Some Dem commission members might not like the Clinton margins in the western MI seats, but with a fair map you can draw either 1 solid dem seat or 2 tilt dem seats in western MI.  In this map I chose the latter.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Former President tack50 on February 06, 2020, 07:34:11 PM
Not sure how likely the commission is to draw a map like this but here is my attempt.

()

It somehow ended up as quite a Republican gerrymander (even if I did not look at partisan data and tried to generally keep counties whole). However most of the R leads are quite small. Only 4 districts are decided by more than 11 points. So it can also work as an R dummymander maybe.

Also, this map keeps 2 VRA districts in Detroit, at 53 and 48% black VAP


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 06, 2020, 08:25:32 PM
I think this map is perfection:

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()

https://davesredistricting.org/join/86c3575b-47c5-455b-bdef-ba4557967108

Two AA districts now (I doubt the population numbers by 2020 will be correct though,  probably both very under-populated).

MI-3 (Red) really should go west from Grand Rapids, not east,  the metro itself extends west into Ottawa, makes the most sense.

Love the Flint and Lansing seats, both competitive, both respect COI's in the area.

Tons of competitive seats on the map overall,  only five seats were won by either party by more than 10% (including the two AA ones),  with 3 within 5%.

This is my favorite so far.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 06, 2020, 08:27:12 PM
()
https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f (https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f)
1 - R+10
2 - R+3
3 - R+15
4 - D+3
5 - R+2
6 - R+11
7 - D+2
8 - R+13
9 - R+2
10 - D+1
11 - D+10
12 - D+31 (49% Black)
13 - D+24 (49% Black)

If the Commission decides to prioritise partisan fairness and competitiveness. COIs still respected. 6 seats have a D PVI, 7 seats have a R PVI. 6 seats voted Clinton, 7 seats voted Trump. 4 seats are safe R, 3 seats are Safe D, and the remaining 6 are competitive, with 3 leaning left and 3 leaning right. Only 3 townships + Detroit are split.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 06, 2020, 08:36:57 PM
Not sure how likely the commission is to draw a map like this but here is my attempt.

()

It somehow ended up as quite a Republican gerrymander (even if I did not look at partisan data and tried to generally keep counties whole). However most of the R leads are quite small. Only 4 districts are decided by more than 11 points. So it can also work as an R dummymander maybe.

Also, this map keeps 2 VRA districts in Detroit, at 53 and 48% black VAP

There should only be 13 districts in a 2020 map. You may also be using outdated population totals. That would explain why the two black districts are possible if you are using 2010 data and 14 districts.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 06, 2020, 08:38:50 PM
I think this map is perfection:

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()

https://davesredistricting.org/join/86c3575b-47c5-455b-bdef-ba4557967108

Two AA districts now (I doubt the population numbers by 2020 will be correct though,  probably both very under-populated).

MI-3 (Red) really should go west from Grand Rapids, not east,  the metro itself extends west into Ottawa, makes the most sense.

Love the Flint and Lansing seats, both competitive, both respect COI's in the area.

Tons of competitive seats on the map overall,  only five seats were won by either party by more than 10% (including the two AA ones),  with 3 within 5%.

This is my favorite so far.

I think double-splitting Wayne and Oakland between MI-9 and MI-12 as on this map is illegal under the Michigan rules. You can't have two districts that both split the same two counties.

Should be solvable by putting Pontiac in MI-09 and pushing MI-12 down through Mexicantown, allowing MI-13 to take up the rest of Wayne from MI-09.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 10:17:45 PM
I think this map is perfection:

()

()

https://davesredistricting.org/join/86c3575b-47c5-455b-bdef-ba4557967108

Two AA districts now (I doubt the population numbers by 2020 will be correct though,  probably both very under-populated).

MI-3 (Red) really should go west from Grand Rapids, not east,  the metro itself extends west into Ottawa, makes the most sense.

Love the Flint and Lansing seats, both competitive, both respect COI's in the area.

Tons of competitive seats on the map overall,  only five seats were won by either party by more than 10% (including the two AA ones),  with 3 within 5%.

This is my favorite so far.

Perfect?!?  You unnecessarily pull Grand Rapids out of Kent County severing the suburbs and how you drew Detroit was a blatant Dem gerrymander by cracking republican leaning areas.  You made a 7-6 map and so did I: https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54
mine actually respects COIs.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 06, 2020, 10:18:22 PM


I think double-splitting Wayne and Oakland between MI-9 and MI-12 as on this map is illegal under the Michigan rules. You can't have two districts that both split the same two counties.

Should be solvable by putting Pontiac in MI-09 and pushing MI-12 down through Mexicantown, allowing MI-13 to take up the rest of Wayne from MI-09.

I wasn't aware of the Michigan requirements.    How about this then?   If all you need is two Black plurality seats, it almost makes the Detroit Metro a Dem gerrymander (only that all the seats are Lean D now, no tossups).

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()

https://davesredistricting.org/join/86c3575b-47c5-455b-bdef-ba4557967108

2016:
1: 33.8%D - 60.8%R
2: 37.1D - 56.7R
3: 42.6D - 50.6R
4: 45.0D - 48.9R
5: 48.6D - 46.3R
6: 43.1D - 50.8R
7: 36.1D - 58.5R
8: 51.0D - 44.1R
9: 51.5D - 43.2R
10: 33.0D - 62.1R
11: 68.0D - 28.6R (47.4% AA)
12: 72.3D - 24.5R (48.6% AA)
13: 55.3D - 39.9 R

3 Safe D
2 Likely/Lean D
2 Tossup
2 Likely/Lean R
4 Safe R

Overall 6 Clinton and 7 Trump

By 2022 I'd expect MI-3 (Red) to trend to either tossup or maybe Lean D.  MI-5 (Flint/Tri-Cities) will trend to Lean R maybe.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 10:21:10 PM
()
https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f (https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f)
1 - R+10
2 - R+3
3 - R+15
4 - D+3
5 - R+2
6 - R+11
7 - D+2
8 - R+13
9 - R+2
10 - D+1
11 - D+10
12 - D+31 (49% Black)
13 - D+24 (49% Black)

If the Commission decides to prioritise partisan fairness and competitiveness. COIs still respected. 6 seats have a D PVI, 7 seats have a R PVI. 6 seats voted Clinton, 7 seats voted Trump. 4 seats are safe R, 3 seats are Safe D, and the remaining 6 are competitive, with 3 leaning left and 3 leaning right. Only 3 townships + Detroit are split.
Why split Kent County?  Also the 3 way cut of Genesee is unnecessary and unfair to the Flint community.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 06, 2020, 10:25:36 PM


Perfect?!?  You unnecessarily pull Grand Rapids out of Kent County severing the suburbs and how you drew Detroit was a blatant Dem gerrymander by cracking republican leaning areas.  You made a 7-6 map and so did I: https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54
mine actually respects COIs.

If you split Ottawa and Kent, then that's actually breaking up a COI.   The counties east of Kent have very little in common with Grand Rapids, and the metro extends westward into Georgetown/Hudsonville.  

The main focus of the Detroit metro was working around the two AA seats,  nothing else was done deliberately.  

And please - Kalamazoo is a COI with Monroe county?  Or Lapeer with Livingston?  Grand Rapids is better served with Mecosta county? You have county chains/groups in that map that make no sense.

You obviously just packed the Dems into a few Detroit districts and then spread the remaining metros out with Rural areas.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 06, 2020, 10:35:03 PM
https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f (https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f)
1 - R+10
2 - R+3
3 - R+15
4 - D+3
5 - R+2
6 - R+11
7 - D+2
8 - R+13
9 - R+2
10 - D+1
11 - D+10
12 - D+31 (49% Black)
13 - D+24 (49% Black)

If the Commission decides to prioritise partisan fairness and competitiveness. COIs still respected. 6 seats have a D PVI, 7 seats have a R PVI. 6 seats voted Clinton, 7 seats voted Trump. 4 seats are safe R, 3 seats are Safe D, and the remaining 6 are competitive, with 3 leaning left and 3 leaning right. Only 3 townships + Detroit are split.
Why split Kent County?  Also the 3 way cut of Genesee is unnecessary and unfair to the Flint community.
Why not read the description. This map is merely an example of what a commission could do if they prioritised competitive districts.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: cvparty on February 06, 2020, 10:39:10 PM
I think this map is perfection:

()

()

https://davesredistricting.org/join/86c3575b-47c5-455b-bdef-ba4557967108

Two AA districts now (I doubt the population numbers by 2020 will be correct though,  probably both very under-populated).

MI-3 (Red) really should go west from Grand Rapids, not east,  the metro itself extends west into Ottawa, makes the most sense.

Love the Flint and Lansing seats, both competitive, both respect COI's in the area.

Tons of competitive seats on the map overall,  only five seats were won by either party by more than 10% (including the two AA ones),  with 3 within 5%.

This is my favorite so far.

Perfect?!?  You unnecessarily pull Grand Rapids out of Kent County severing the suburbs and how you drew Detroit was a blatant Dem gerrymander by cracking republican leaning areas.  You made a 7-6 map and so did I: https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54
mine actually respects COIs.
gotta love that 20-mile wide fajita strip COI that stretches like 200 miles


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 11:39:13 PM
https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f (https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f)
1 - R+10
2 - R+3
3 - R+15
4 - D+3
5 - R+2
6 - R+11
7 - D+2
8 - R+13
9 - R+2
10 - D+1
11 - D+10
12 - D+31 (49% Black)
13 - D+24 (49% Black)

If the Commission decides to prioritise partisan fairness and competitiveness. COIs still respected. 6 seats have a D PVI, 7 seats have a R PVI. 6 seats voted Clinton, 7 seats voted Trump. 4 seats are safe R, 3 seats are Safe D, and the remaining 6 are competitive, with 3 leaning left and 3 leaning right. Only 3 townships + Detroit are split.
Why split Kent County?  Also the 3 way cut of Genesee is unnecessary and unfair to the Flint community.
Why not read the description. This map is merely an example of what a commission could do if they prioritised competitive districts.
Competitive districts can be achieved without dicing up communities.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 06, 2020, 11:40:09 PM
https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f (https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f)
1 - R+10
2 - R+3
3 - R+15
4 - D+3
5 - R+2
6 - R+11
7 - D+2
8 - R+13
9 - R+2
10 - D+1
11 - D+10
12 - D+31 (49% Black)
13 - D+24 (49% Black)

If the Commission decides to prioritise partisan fairness and competitiveness. COIs still respected. 6 seats have a D PVI, 7 seats have a R PVI. 6 seats voted Clinton, 7 seats voted Trump. 4 seats are safe R, 3 seats are Safe D, and the remaining 6 are competitive, with 3 leaning left and 3 leaning right. Only 3 townships + Detroit are split.
Why split Kent County?  Also the 3 way cut of Genesee is unnecessary and unfair to the Flint community.
Why not read the description. This map is merely an example of what a commission could do if they prioritised competitive districts.
Competitive districts can be achieved without dicing up communities.
The competitive map respects COIs just as much as your map does.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 11:41:42 PM
https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f (https://davesredistricting.org/join/f1e1bee7-6029-41ce-b898-8ba4e67cd46f)
1 - R+10
2 - R+3
3 - R+15
4 - D+3
5 - R+2
6 - R+11
7 - D+2
8 - R+13
9 - R+2
10 - D+1
11 - D+10
12 - D+31 (49% Black)
13 - D+24 (49% Black)

If the Commission decides to prioritise partisan fairness and competitiveness. COIs still respected. 6 seats have a D PVI, 7 seats have a R PVI. 6 seats voted Clinton, 7 seats voted Trump. 4 seats are safe R, 3 seats are Safe D, and the remaining 6 are competitive, with 3 leaning left and 3 leaning right. Only 3 townships + Detroit are split.
Why split Kent County?  Also the 3 way cut of Genesee is unnecessary and unfair to the Flint community.
Why not read the description. This map is merely an example of what a commission could do if they prioritised competitive districts.
Competitive districts can be achieved without dicing up communities.
The competitive map respects COIs just as much as your map does.
my map respects COIs far better.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 06, 2020, 11:48:36 PM


Perfect?!?  You unnecessarily pull Grand Rapids out of Kent County severing the suburbs and how you drew Detroit was a blatant Dem gerrymander by cracking republican leaning areas.  You made a 7-6 map and so did I: https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54
mine actually respects COIs.

If you split Ottawa and Kent, then that's actually breaking up a COI.   The counties east of Kent have very little in common with Grand Rapids, and the metro extends westward into Georgetown/Hudsonville.  

The main focus of the Detroit metro was working around the two AA seats,  nothing else was done deliberately.  

And please - Kalamazoo is a COI with Monroe county?  Or Lapeer with Livingston?  Grand Rapids is better served with Mecosta county? You have county chains/groups in that map that make no sense.

You obviously just packed the Dems into a few Detroit districts and then spread the remaining metros out with Rural areas.
LOL
>"Ottowa and Kent counties being in different districts breaks a COI"
>proceeds to separate Grand Rapids from half its suburbs by unnecessarily breaking Kent in 2.

Also I love how compact districts in Detroit that don't cut 20 miles into the suburbs count as packing.  You literally shred Northern Oakland County for purely political purposes.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 07, 2020, 03:51:32 AM
why not this, compact, 10 county splits, COI preservation and and 7-6 trump

violates the VRA, just reach the second black district into southern Oakland County and you'll get the numbers you need.  A tendril into Pontiac isn't even needed.

here I edited my map for more compactness and evening out the black populations in vra districts.  Still 7 Trump 6 Clinton.  4 safe R (Huron Shore, UP, west coast, Detroit exurbs),  2 likely R(South MI, Macomb), 1 Lean R(Grand Rapids),  2 lean D(Flint, Lansing), 1 likely D(Oakland),  3 safe D(2 Detroit, Ann Arbor).
https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: cvparty on February 07, 2020, 04:08:39 AM
why not this, compact, 10 county splits, COI preservation and and 7-6 trump

violates the VRA
how so? michigan goes down to 13 CDs and detroit has shrunk significantly relative to the state


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 07, 2020, 04:21:47 AM
But there are still sufficient black electors for it to be possible for them to elect two representatives of their choice and they're geographically concentrated enough to pass the Gingles test. Instead you've packed them into a district that must be about 75% AA. That's as obvious a violation of the VRA as you'll ever see.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: cvparty on February 07, 2020, 04:45:32 AM
But there are still sufficient black electors for it to be possible for them to elect two representatives of their choice and they're geographically concentrated enough to pass the Gingles test. Instead you've packed them into a district that must be about 75% AA. That's as obvious a violation of the VRA as you'll ever see.
well i'm sorry i was just following city lines and compactness


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: cvparty on February 07, 2020, 04:48:45 AM
why not this, compact, 10 county splits, COI preservation and 7-6 trump

()
MI-01: Trump +23
MI-02: Trump+9
MI-03: Trump +24
MI-04: Trump +21
MI-05: Clinton +1
MI-06: Trump +8
MI-07: Clinton +16
MI-08: Trump +4
MI-09: Clinton +42
MI-10: Trump +31
MI-11: Clinton +3
MI-12: Clinton +9
MI-13: Clinton +54


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: cvparty on February 07, 2020, 05:00:20 AM
why not this, compact, 10 county splits, COI preservation and and 7-6 trump

violates the VRA, just reach the second black district into southern Oakland County and you'll get the numbers you need.  A tendril into Pontiac isn't even needed.

here I edited my map for more compactness and evening out the black populations in vra districts.  Still 7 Trump 6 Clinton.  4 safe R (Huron Shore, UP, west coast, Detroit exurbs),  2 likely R(South MI, Macomb), 1 Lean R(Grand Rapids),  2 lean D(Flint, Lansing), 1 likely D(Oakland),  3 safe D(2 Detroit, Ann Arbor).
https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54
your map still consists of many strangely configured districts, ex. mackinack bridge all the way to metro detroit, monroe to kalamazoo, stretching grand rapids out into rural counties instead of keeping it an urban district


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 07, 2020, 09:31:03 AM


Perfect?!?  You unnecessarily pull Grand Rapids out of Kent County severing the suburbs and how you drew Detroit was a blatant Dem gerrymander by cracking republican leaning areas.  You made a 7-6 map and so did I: https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54
mine actually respects COIs.

If you split Ottawa and Kent, then that's actually breaking up a COI.   The counties east of Kent have very little in common with Grand Rapids, and the metro extends westward into Georgetown/Hudsonville.  

The main focus of the Detroit metro was working around the two AA seats,  nothing else was done deliberately.  

And please - Kalamazoo is a COI with Monroe county?  Or Lapeer with Livingston?  Grand Rapids is better served with Mecosta county? You have county chains/groups in that map that make no sense.

You obviously just packed the Dems into a few Detroit districts and then spread the remaining metros out with Rural areas.
LOL
>"Ottowa and Kent counties being in different districts breaks a COI"
>proceeds to separate Grand Rapids from half its suburbs by unnecessarily breaking Kent in 2.

Also I love how compact districts in Detroit that don't cut 20 miles into the suburbs count as packing.  You literally shred Northern Oakland County for purely political purposes.

The vast majority of the Grand Rapids suburbs are in the MI-3 district,  the city portion of Kent county actually cuts off very quickly after Ada, which is in the district.   Nowhere close to "half" the suburbs are broke off, the portion of Kent that isn't in MI-3 only has about 148k people, compared to the 278k in Ottawa.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 07, 2020, 09:59:05 AM
Kent and Ottawa have too many people for a single congressional district. If you believe they ought to go in the same congressional district (and it's an eminently fair argument if you look at a map) then you have to remove some of the outlying portions of one or both of them. It's not evidence of a gerrymander, just evidence of Kent being a large county.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 07, 2020, 10:02:02 AM
I guess you could do it this way (All of Kent, some of Ottawa),  I just hate the wrap around district you end up with for MI-2

()

https://davesredistricting.org/join/86c3575b-47c5-455b-bdef-ba4557967108


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 07, 2020, 10:12:15 AM
why not this, compact, 10 county splits, COI preservation and 7-6 trump

()
MI-01: Trump +23
MI-02: Trump+9
MI-03: Trump +24
MI-04: Trump +21
MI-05: Clinton +1
MI-06: Trump +8
MI-07: Clinton +16
MI-08: Trump +4
MI-09: Clinton +42
MI-10: Trump +31
MI-11: Clinton +3
MI-12: Clinton +9
MI-13: Clinton +54

This map is decent overall, but you have two Wayne-Macomb districts and two Oakland-Livingston districts. Under the Michigan rules, you generally can't double-split counties like that. (I could *maybe* see a commission making an exception for the black seats if it seemed like the double-split was designed to preserve them.)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 07, 2020, 12:04:37 PM
There's no maybe about it - the current map does so, so there's no realistic question but that it's legitimate to secure two AA-majority seats.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 07, 2020, 03:07:49 PM
why not this, compact, 10 county splits, COI preservation and 7-6 trump

()
MI-01: Trump +23
MI-02: Trump+9
MI-03: Trump +24
MI-04: Trump +21
MI-05: Clinton +1
MI-06: Trump +8
MI-07: Clinton +16
MI-08: Trump +4
MI-09: Clinton +42
MI-10: Trump +31
MI-11: Clinton +3
MI-12: Clinton +9
MI-13: Clinton +54
Non Detroit metro is fine but in Detroit the districts are a bit odd, particularly sending the black districts deep into suburban territory.  One black district can remain entirely in Wayne, the other can go into southern Oakland to get enough blacks to get to 49-50%.  Generally speaking it's good to split counties once if at all.  There should be a Macomb district, it would end up being aswing district since Macomb went Obama in 2012, Trump in 2016, then Dem in 2018 for governor and senate.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: cvparty on February 07, 2020, 03:42:10 PM
why not this, compact, 10 county splits, COI preservation and 7-6 trump

()
MI-01: Trump +23
MI-02: Trump+9
MI-03: Trump +24
MI-04: Trump +21
MI-05: Clinton +1
MI-06: Trump +8
MI-07: Clinton +16
MI-08: Trump +4
MI-09: Clinton +42
MI-10: Trump +31
MI-11: Clinton +3
MI-12: Clinton +9
MI-13: Clinton +54
Non Detroit metro is fine but in Detroit the districts are a bit odd, particularly sending the black districts deep into suburban territory.  One black district can remain entirely in Wayne, the other can go into southern Oakland to get enough blacks to get to 49-50%.  Generally speaking it's good to split counties once if at all.  There should be a Macomb district, it would end up being aswing district since Macomb went Obama in 2012, Trump in 2016, then Dem in 2018 for governor and senate.
if i do what you say it changes the whole configurement of the map. i don’t want to do a 9-4 gerrymander lmao. from a COI standpoint the suburbs that get paired with detroit are blue collar as well which at least makes sense, all while having two wealthy COI suburban districts (7 and 11) and i already have an entirely wayne-based blue collar one (12).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 07, 2020, 03:59:03 PM
Well since everyone here seems intent on drawing a partisan map that would be unlikely to get support from the Republican commissioners it needs for passage, I'll get in on the game too.  Here's a 9R-4D map where Trump wins all the red districts by 10 or more.  Very clean and decent on COIs.  Interesting how it's less brazenly partisan than the current map yet better for Republicans at the same time.  I have to thank you guys for the idea of shoving the VRA districts deep into the suburbs, that's how I could make this map, just shoving them into different suburbs ofc.  This shows how the vra districts are a double edged sword that can be used as a weapon by either party with respect to shoving them into the northern suburbs.
https://davesredistricting.org/join/5184cd9e-e518-41f5-9a1f-8eab1fa5412a


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 07, 2020, 04:19:11 PM
Well since everyone here seems intent on drawing a partisan map that would be unlikely to get support from the Republican commissioners it needs for passage, I'll get in on the game too.  Here's a 9R-4D map where Trump wins all the red districts by 10 or more.  Very clean and decent on COIs.  Interesting how it's less brazenly partisan than the current map yet better for Republicans at the same time.  I have to thank you guys for the idea of shoving the VRA districts deep into the suburbs, that's how I could make this map, just shoving them into different suburbs ofc.  This shows how the vra districts are a double edged sword that can be used as a weapon by either party with respect to shoving them into the northern suburbs.
https://davesredistricting.org/join/5184cd9e-e518-41f5-9a1f-8eab1fa5412a

Yeah, because Battle Creek is clearly a COI with southern Wayne, and putting Lansing and Ann Arbor together wouldn't make either upset.

And the Thumb to Saginaw to Eaton district...yeah.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 07, 2020, 04:36:26 PM
Guess it's my job as thread OP to get us back on track. Posted this on my twitter a while back. 5/5 safer, 3 competitive. Whitmer won 9, Snyder '14 won 8 because he of course bombed in Flint.

()

Neither AA seat is >50% but both are plurality AA in 2016 data. MI-12 tries to get all the big arab communities together. I prefer cutting as few counties as possible, so someone (Isabella) drew the short straw. Would have liked to keep the Lansing region together, but needed to get an equitable distribution statewide.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 07, 2020, 05:20:35 PM
Well since everyone here seems intent on drawing a partisan map that would be unlikely to get support from the Republican commissioners it needs for passage, I'll get in on the game too.  Here's a 9R-4D map where Trump wins all the red districts by 10 or more.  Very clean and decent on COIs.  Interesting how it's less brazenly partisan than the current map yet better for Republicans at the same time.  I have to thank you guys for the idea of shoving the VRA districts deep into the suburbs, that's how I could make this map, just shoving them into different suburbs ofc.  This shows how the vra districts are a double edged sword that can be used as a weapon by either party with respect to shoving them into the northern suburbs.
https://davesredistricting.org/join/5184cd9e-e518-41f5-9a1f-8eab1fa5412a

Yeah, because Battle Creek is clearly a COI with southern Wayne, and putting Lansing and Ann Arbor together wouldn't make either upset.

And the Thumb to Saginaw to Eaton district...yeah.
I made the map to make a point


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 07, 2020, 05:28:24 PM
Guess it's my job as thread OP to get us back on track. Posted this on my twitter a while back. 5/5 safer, 3 competitive. Whitmer won 9, Snyder '14 won 8 because he of course bombed in Flint.

()

Neither AA seat is >50% but both are plurality AA in 2016 data. MI-12 tries to get all the big arab communities together. I prefer cutting as few counties as possible, so someone (Isabella) drew the short straw. Would have liked to keep the Lansing region together, but needed to get an equitable distribution statewide.
You can still keep Lansing together and get a Clinton seat, like I did on my map. https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54 
Also a lot of those county breaks seem a but random, you could clean it up a bit without losing a 7-6 breakdown.  And what did Isabella county ever do to you? HAHAHA


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on February 07, 2020, 06:18:19 PM
()

The three core Detroit counties (Oakland, Macomb, Wayne) are slightly over 5 districts.  There should be one solely in Macomb and one solely in Oakland.  One AA district can take the excess Macomb population and the other can take Southfield, leaving one district to take the southern and western tier of Wayne, plus most of the rest of Oakland.  

The 10 counties in the Detroit CSA are just shy of 7 districts, which logically means one district from Monroe to Washtenaw and then one district from Flint to St Clair, splitting Livingston between them.  It's pretty perfect, actually.  

The rest falls into place pretty naturally: a Grand Rapids district including suburbs in Ottawa, a Lake Michigan district, a Kalamazoo-Battle Creek-Jackson district, a Lansing-centered district, a Midland-Saginaw-Bay City-thumb district centered on Saginaw Bay, and the north.  

This map has 5 Clinton districts (the 4 in Wayne/Oakland + the Ann Arbor district) but the Lansing district is only Trump +2 and is more Democratic downballot, and the Flint district is Trump +10 but is basically even if you add 2012 to 2016.  


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 07, 2020, 06:28:50 PM
Guess it's my job as thread OP to get us back on track. Posted this on my twitter a while back. 5/5 safer, 3 competitive. Whitmer won 9, Snyder '14 won 8 because he of course bombed in Flint.


Neither AA seat is >50% but both are plurality AA in 2016 data. MI-12 tries to get all the big arab communities together. I prefer cutting as few counties as possible, so someone (Isabella) drew the short straw. Would have liked to keep the Lansing region together, but needed to get an equitable distribution statewide.
You can still keep Lansing together and get a Clinton seat, like I did on my map. https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54  
Also a lot of those county breaks seem a but random, you could clean it up a bit without losing a 7-6 breakdown.  And what did Isabella county ever do to you? HAHAHA

We have already had this discussion at length elsewhere but it comes down to personal preference over cuts. Is cutting three counties once better than cutting one county three times? In my opinion, no, because you carve up three easily defendable COIs, when you could only carve up one. However, everyone is entitled to their own opinion on that matter. I would say a map that cuts only six counties to achieve pop equity, 3 of which need to be cut because they are overpopulated, therefore does a  good job.

Of course you should also try and observe other COIs while you are at it, stuff like pairing Flint with the northern suburbs doesn't make cultural sense even though it might pop-wise. In that regard, I only failed Lansing, since the map needs true partisan equity (safe R = Safe D) for a even state.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: OBD on February 07, 2020, 08:03:13 PM
https://davesredistricting.org/join/75dbead5-5961-4005-b824-7ec359d690ca

Comments on this map? I tried to keep cities and counties whole while being as nonpartisan as possible. That said, I'm not knowledgeable on Michigan COIs, so there could be a major mistake here. It's a 7-6 R map with 3 competitive R-leaning districts (3, 4, and 6) and 1 competitive D-leaning district (7).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 07, 2020, 08:06:53 PM
Guess it's my job as thread OP to get us back on track. Posted this on my twitter a while back. 5/5 safer, 3 competitive. Whitmer won 9, Snyder '14 won 8 because he of course bombed in Flint.


Neither AA seat is >50% but both are plurality AA in 2016 data. MI-12 tries to get all the big arab communities together. I prefer cutting as few counties as possible, so someone (Isabella) drew the short straw. Would have liked to keep the Lansing region together, but needed to get an equitable distribution statewide.
You can still keep Lansing together and get a Clinton seat, like I did on my map. https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54  
Also a lot of those county breaks seem a but random, you could clean it up a bit without losing a 7-6 breakdown.  And what did Isabella county ever do to you? HAHAHA

We have already had this discussion at length elsewhere but it comes down to personal preference over cuts. Is cutting three counties once better than cutting one county three times? In my opinion, no, because you carve up three easily defendable COIs, when you could only carve up one. However, everyone is entitled to their own opinion on that matter. I would say a map that cuts only six counties to achieve pop equity, 3 of which need to be cut because they are overpopulated, therefore does a  good job.

Of course you should also try and observe other COIs while you are at it, stuff like pairing Flint with the northern suburbs doesn't make cultural sense even though it might pop-wise. In that regard, I only failed Lansing, since the map needs true partisan equity (safe R = Safe D) for a even state.
I would say small cuts into 3 counties are better than cutting 1 county into 4.  Also, Isabella county isn't Wayne or Oakland, keeping it whole is easy.  I did not pair Flint with the suburbs on my map, I agree it doesn't make sense culturally.   As for partisan fairness, it isn't explicitly defined relating to specific criteria, just one of many factors.  Basically the point is so the commission doesn't draw a blatant partisan gerrymander, doesn't mean 1 safe seat has to always be matched by another safe seat.  It is obvious you are compensating for Dem's geographic disadvantage since you are drawing a tilt dem map, like you always do.  Many factors go into drawing a map and the commission may decide COIs are more important.  Not saying they'll draw a R gerrymander, but the map might reflect the geographic reality of the state.  If I were a republican commissioner I wouldn't try to draw an unfair map, but I'd reject any dem attempt to draw lines to benefit them without a concession given to me.  With commissions like this it's all about give and take.  If I'm a commissioner maybe I agree to a Lansing to Kalamazoo district, then you agree to keeping Macomb whole.  Something like that.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 07, 2020, 08:19:19 PM
Guess it's my job as thread OP to get us back on track. Posted this on my twitter a while back. 5/5 safer, 3 competitive. Whitmer won 9, Snyder '14 won 8 because he of course bombed in Flint.


Neither AA seat is >50% but both are plurality AA in 2016 data. MI-12 tries to get all the big arab communities together. I prefer cutting as few counties as possible, so someone (Isabella) drew the short straw. Would have liked to keep the Lansing region together, but needed to get an equitable distribution statewide.
You can still keep Lansing together and get a Clinton seat, like I did on my map. https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54  
Also a lot of those county breaks seem a but random, you could clean it up a bit without losing a 7-6 breakdown.  And what did Isabella county ever do to you? HAHAHA

We have already had this discussion at length elsewhere but it comes down to personal preference over cuts. Is cutting three counties once better than cutting one county three times? In my opinion, no, because you carve up three easily defendable COIs, when you could only carve up one. However, everyone is entitled to their own opinion on that matter. I would say a map that cuts only six counties to achieve pop equity, 3 of which need to be cut because they are overpopulated, therefore does a  good job.

Of course you should also try and observe other COIs while you are at it, stuff like pairing Flint with the northern suburbs doesn't make cultural sense even though it might pop-wise. In that regard, I only failed Lansing, since the map needs true partisan equity (safe R = Safe D) for a even state.
I would say small cuts into 3 counties are better than cutting 1 county into 4.  Also, Isabella county isn't Wayne or Oakland, keeping it whole is easy.  I did not pair Flint with the suburbs on my map, I agree it doesn't make sense culturally.   As for partisan fairness, it isn't explicitly defined relating to specific criteria, just one of many factors.  Basically the point is so the commission doesn't draw a blatant partisan gerrymander, doesn't mean 1 safe seat has to always be matched by another safe seat.  It is obvious you are compensating for Dem's geographic disadvantage since you are drawing a tilt dem map, like you always do.  Many factors go into drawing a map and the commission may decide COIs are more important.  Not saying they'll draw a R gerrymander, but the map might reflect the geographic reality of the state.  If I were a republican commissioner I wouldn't try to draw an unfair map, but I'd reject any dem attempt to draw lines to benefit them without a concession given to me.  With commissions like this it's all about give and take.  If I'm a commissioner maybe I agree to a Lansing to Kalamazoo district, then you agree to keeping Macomb whole.  Something like that.

This  is basically a Macomb whole district, I just tend to think the grosse pointes belong in with Macomb, and they are hardly paragons of Dem partisanship, plus it allows one to nest the 8th. I wasn't attacking you with Flint, just giving an example.

Also If you think I draw Dem tilting maps...oh baby. I take fault with Stephan Wolf because I think he draws Dem tilting maps. I will concede that most of my write-ups so far have been in states where things will either get better for Dems or the fundamentals of the game favor them, so that might give the impression. If we were to get a thread going on Wisconsin, Florida, South Carolina, or prod me in Ohio, you would see my other side. Hell, you already saw the 4-way cut in Tennessee, the 8-1 in Indiana, and you can go on my Twitter for things like my Oklahoma City spiral. Remember, I'm the only guy who also expects the GA02 cut.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 07, 2020, 08:22:52 PM
https://davesredistricting.org/join/75dbead5-5961-4005-b824-7ec359d690ca

Comments on this map? I tried to keep cities and counties whole while being as nonpartisan as possible. That said, I'm not knowledgeable on Michigan COIs, so there could be a major mistake here. It's a 7-6 R map with 3 competitive R-leaning districts (3, 4, and 6) and 1 competitive D-leaning district (7).
Good except for cracking republican areas in Oakland and Macomb.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 07, 2020, 08:56:50 PM
()

The three core Detroit counties (Oakland, Macomb, Wayne) are slightly over 5 districts.  There should be one solely in Macomb and one solely in Oakland.  One AA district can take the excess Macomb population and the other can take Southfield, leaving one district to take the southern and western tier of Wayne, plus most of the rest of Oakland.  

The 10 counties in the Detroit CSA are just shy of 7 districts, which logically means one district from Monroe to Washtenaw and then one district from Flint to St Clair, splitting Livingston between them.  It's pretty perfect, actually.  

The rest falls into place pretty naturally: a Grand Rapids district including suburbs in Ottawa, a Lake Michigan district, a Kalamazoo-Battle Creek-Jackson district, a Lansing-centered district, a Midland-Saginaw-Bay City-thumb district centered on Saginaw Bay, and the north.  

This map has 5 Clinton districts (the 4 in Wayne/Oakland + the Ann Arbor district) but the Lansing district is only Trump +2 and is more Democratic downballot, and the Flint district is Trump +10 but is basically even if you add 2012 to 2016.  

Flint really belongs with Saginaw, maybe not Midland and Bay, but at least it should have Saginaw in with it.  If there's 1 real COI on the whole map outside the Detroit metro, it would be Flint with the Tri-Cities area.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 07, 2020, 09:43:47 PM
()

The three core Detroit counties (Oakland, Macomb, Wayne) are slightly over 5 districts.  There should be one solely in Macomb and one solely in Oakland.  One AA district can take the excess Macomb population and the other can take Southfield, leaving one district to take the southern and western tier of Wayne, plus most of the rest of Oakland.  

The 10 counties in the Detroit CSA are just shy of 7 districts, which logically means one district from Monroe to Washtenaw and then one district from Flint to St Clair, splitting Livingston between them.  It's pretty perfect, actually.  

The rest falls into place pretty naturally: a Grand Rapids district including suburbs in Ottawa, a Lake Michigan district, a Kalamazoo-Battle Creek-Jackson district, a Lansing-centered district, a Midland-Saginaw-Bay City-thumb district centered on Saginaw Bay, and the north.  

This map has 5 Clinton districts (the 4 in Wayne/Oakland + the Ann Arbor district) but the Lansing district is only Trump +2 and is more Democratic downballot, and the Flint district is Trump +10 but is basically even if you add 2012 to 2016.  

Flint really belongs with Saginaw, maybe not Midland and Bay, but at least it should have Saginaw in with it.  If there's 1 real COI on the whole map outside the Detroit metro, it would be Flint with the Tri-Cities area.
not really.  You just want them together so the seat doesn't vote Trump.  Saginaw and Flint are different cities, not a single COI.  Now if I'm a Republican on the commission, I might still agree to a Flint-Saginaw district, it's a small concession.  But the other side would need to cooperate in other areas.  It's inevitable some districts will be drawn in a way that disproportionately favor one party, but the whole map can't be drawn with subtle decisions that all happen to favor 1 party.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 07, 2020, 09:48:23 PM
Guess it's my job as thread OP to get us back on track. Posted this on my twitter a while back. 5/5 safer, 3 competitive. Whitmer won 9, Snyder '14 won 8 because he of course bombed in Flint.


Neither AA seat is >50% but both are plurality AA in 2016 data. MI-12 tries to get all the big arab communities together. I prefer cutting as few counties as possible, so someone (Isabella) drew the short straw. Would have liked to keep the Lansing region together, but needed to get an equitable distribution statewide.
You can still keep Lansing together and get a Clinton seat, like I did on my map. https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54  
Also a lot of those county breaks seem a but random, you could clean it up a bit without losing a 7-6 breakdown.  And what did Isabella county ever do to you? HAHAHA

We have already had this discussion at length elsewhere but it comes down to personal preference over cuts. Is cutting three counties once better than cutting one county three times? In my opinion, no, because you carve up three easily defendable COIs, when you could only carve up one. However, everyone is entitled to their own opinion on that matter. I would say a map that cuts only six counties to achieve pop equity, 3 of which need to be cut because they are overpopulated, therefore does a  good job.

Of course you should also try and observe other COIs while you are at it, stuff like pairing Flint with the northern suburbs doesn't make cultural sense even though it might pop-wise. In that regard, I only failed Lansing, since the map needs true partisan equity (safe R = Safe D) for a even state.
I would say small cuts into 3 counties are better than cutting 1 county into 4.  Also, Isabella county isn't Wayne or Oakland, keeping it whole is easy.  I did not pair Flint with the suburbs on my map, I agree it doesn't make sense culturally.   As for partisan fairness, it isn't explicitly defined relating to specific criteria, just one of many factors.  Basically the point is so the commission doesn't draw a blatant partisan gerrymander, doesn't mean 1 safe seat has to always be matched by another safe seat.  It is obvious you are compensating for Dem's geographic disadvantage since you are drawing a tilt dem map, like you always do.  Many factors go into drawing a map and the commission may decide COIs are more important.  Not saying they'll draw a R gerrymander, but the map might reflect the geographic reality of the state.  If I were a republican commissioner I wouldn't try to draw an unfair map, but I'd reject any dem attempt to draw lines to benefit them without a concession given to me.  With commissions like this it's all about give and take.  If I'm a commissioner maybe I agree to a Lansing to Kalamazoo district, then you agree to keeping Macomb whole.  Something like that.

This  is basically a Macomb whole district, I just tend to think the grosse pointes belong in with Macomb, and they are hardly paragons of Dem partisanship, plus it allows one to nest the 8th. I wasn't attacking you with Flint, just giving an example.

Also If you think I draw Dem tilting maps...oh baby. I take fault with Stephan Wolf because I think he draws Dem tilting maps. I will concede that most of my write-ups so far have been in states where things will either get better for Dems or the fundamentals of the game favor them, so that might give the impression. If we were to get a thread going on Wisconsin, Florida, South Carolina, or prod me in Ohio, you would see my other side. Hell, you already saw the 4-way cut in Tennessee, the 8-1 in Indiana, and you can go on my Twitter for things like my Oklahoma City spiral. Remember, I'm the only guy who also expects the GA02 cut.
I'm not saying you are the most biased, but in your "fair" maps have some subtle bias.  On your map the tipping point district is in Macomb, and Macomb leans more dem downballot, you know this.  Your map would likely be 7D-6R.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 07, 2020, 09:48:51 PM
()

The three core Detroit counties (Oakland, Macomb, Wayne) are slightly over 5 districts.  There should be one solely in Macomb and one solely in Oakland.  One AA district can take the excess Macomb population and the other can take Southfield, leaving one district to take the southern and western tier of Wayne, plus most of the rest of Oakland.  

The 10 counties in the Detroit CSA are just shy of 7 districts, which logically means one district from Monroe to Washtenaw and then one district from Flint to St Clair, splitting Livingston between them.  It's pretty perfect, actually.  

The rest falls into place pretty naturally: a Grand Rapids district including suburbs in Ottawa, a Lake Michigan district, a Kalamazoo-Battle Creek-Jackson district, a Lansing-centered district, a Midland-Saginaw-Bay City-thumb district centered on Saginaw Bay, and the north.  

This map has 5 Clinton districts (the 4 in Wayne/Oakland + the Ann Arbor district) but the Lansing district is only Trump +2 and is more Democratic downballot, and the Flint district is Trump +10 but is basically even if you add 2012 to 2016.  

Flint really belongs with Saginaw, maybe not Midland and Bay, but at least it should have Saginaw in with it.  If there's 1 real COI on the whole map outside the Detroit metro, it would be Flint with the Tri-Cities area.
not really.  You just want them together so the seat doesn't vote Trump.  Saginaw and Flint are different cities, not a single COI.  Now if I'm a Republican on the commission, I might still agree to a Flint-Saginaw district, it's a small concession.  But the other side would need to cooperate in other areas.  It's inevitable some districts will be drawn in a way that disproportionately favor one party, but the whole map can't be drawn with subtle decisions that all happen to favor 1 party.

That's ridiculous.  Putting Flint with Saginaw isn't a concession.   The two urban areas are extremely similar.   They both even have significant Black populations.   If that's how Republicans are going to be than the commission is doomed to fail.   You have to agree to basic level COI guidelines,  not just making sure no line benefits Democrats without concessions.

This isn't warfare.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 07, 2020, 10:02:20 PM
()

The three core Detroit counties (Oakland, Macomb, Wayne) are slightly over 5 districts.  There should be one solely in Macomb and one solely in Oakland.  One AA district can take the excess Macomb population and the other can take Southfield, leaving one district to take the southern and western tier of Wayne, plus most of the rest of Oakland.  

The 10 counties in the Detroit CSA are just shy of 7 districts, which logically means one district from Monroe to Washtenaw and then one district from Flint to St Clair, splitting Livingston between them.  It's pretty perfect, actually.  

The rest falls into place pretty naturally: a Grand Rapids district including suburbs in Ottawa, a Lake Michigan district, a Kalamazoo-Battle Creek-Jackson district, a Lansing-centered district, a Midland-Saginaw-Bay City-thumb district centered on Saginaw Bay, and the north.  

This map has 5 Clinton districts (the 4 in Wayne/Oakland + the Ann Arbor district) but the Lansing district is only Trump +2 and is more Democratic downballot, and the Flint district is Trump +10 but is basically even if you add 2012 to 2016.  

Flint really belongs with Saginaw, maybe not Midland and Bay, but at least it should have Saginaw in with it.  If there's 1 real COI on the whole map outside the Detroit metro, it would be Flint with the Tri-Cities area.
not really.  You just want them together so the seat doesn't vote Trump.  Saginaw and Flint are different cities, not a single COI.  Now if I'm a Republican on the commission, I might still agree to a Flint-Saginaw district, it's a small concession.  But the other side would need to cooperate in other areas.  It's inevitable some districts will be drawn in a way that disproportionately favor one party, but the whole map can't be drawn with subtle decisions that all happen to favor 1 party.

That's ridiculous.  Putting Flint with Saginaw isn't a concession.   The two urban areas are extremely similar.   They both even have significant Black populations.   If that's how Republicans are going to be than the commission is doomed to fail.   You have to agree to basic level COI guidelines,  not just making sure no line benefits Democrats without concessions.

This isn't warfare.
2 separate metros that happen to be similar doesn't make a COI.  That's not how COIs work.  With that logic Flint and Lansing could be a COI too.  I'd be fine with that, you wouldn't.  My point is that I'd be fine with a Flint-Saginaw district, but the rest of the map can't all be drawn to favor dems as well.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 07, 2020, 10:03:35 PM
Guess it's my job as thread OP to get us back on track. Posted this on my twitter a while back. 5/5 safer, 3 competitive. Whitmer won 9, Snyder '14 won 8 because he of course bombed in Flint.


Neither AA seat is >50% but both are plurality AA in 2016 data. MI-12 tries to get all the big arab communities together. I prefer cutting as few counties as possible, so someone (Isabella) drew the short straw. Would have liked to keep the Lansing region together, but needed to get an equitable distribution statewide.
You can still keep Lansing together and get a Clinton seat, like I did on my map. https://davesredistricting.org/join/1d117936-4d28-4a7a-9dfe-529e010bef54  
Also a lot of those county breaks seem a but random, you could clean it up a bit without losing a 7-6 breakdown.  And what did Isabella county ever do to you? HAHAHA

We have already had this discussion at length elsewhere but it comes down to personal preference over cuts. Is cutting three counties once better than cutting one county three times? In my opinion, no, because you carve up three easily defendable COIs, when you could only carve up one. However, everyone is entitled to their own opinion on that matter. I would say a map that cuts only six counties to achieve pop equity, 3 of which need to be cut because they are overpopulated, therefore does a  good job.

Of course you should also try and observe other COIs while you are at it, stuff like pairing Flint with the northern suburbs doesn't make cultural sense even though it might pop-wise. In that regard, I only failed Lansing, since the map needs true partisan equity (safe R = Safe D) for a even state.
I would say small cuts into 3 counties are better than cutting 1 county into 4.  Also, Isabella county isn't Wayne or Oakland, keeping it whole is easy.  I did not pair Flint with the suburbs on my map, I agree it doesn't make sense culturally.   As for partisan fairness, it isn't explicitly defined relating to specific criteria, just one of many factors.  Basically the point is so the commission doesn't draw a blatant partisan gerrymander, doesn't mean 1 safe seat has to always be matched by another safe seat.  It is obvious you are compensating for Dem's geographic disadvantage since you are drawing a tilt dem map, like you always do.  Many factors go into drawing a map and the commission may decide COIs are more important.  Not saying they'll draw a R gerrymander, but the map might reflect the geographic reality of the state.  If I were a republican commissioner I wouldn't try to draw an unfair map, but I'd reject any dem attempt to draw lines to benefit them without a concession given to me.  With commissions like this it's all about give and take.  If I'm a commissioner maybe I agree to a Lansing to Kalamazoo district, then you agree to keeping Macomb whole.  Something like that.

This  is basically a Macomb whole district, I just tend to think the grosse pointes belong in with Macomb, and they are hardly paragons of Dem partisanship, plus it allows one to nest the 8th. I wasn't attacking you with Flint, just giving an example.

Also If you think I draw Dem tilting maps...oh baby. I take fault with Stephan Wolf because I think he draws Dem tilting maps. I will concede that most of my write-ups so far have been in states where things will either get better for Dems or the fundamentals of the game favor them, so that might give the impression. If we were to get a thread going on Wisconsin, Florida, South Carolina, or prod me in Ohio, you would see my other side. Hell, you already saw the 4-way cut in Tennessee, the 8-1 in Indiana, and you can go on my Twitter for things like my Oklahoma City spiral. Remember, I'm the only guy who also expects the GA02 cut.
I'm not saying you are the most biased, but in your "fair" maps have some subtle bias.  On your map the tipping point district is in Macomb, and Macomb leans more dem downballot, you know this.  Your map would likely be 7D-6R.


I believe two things, both in regards to 2020 and next decade:

1) The presidential topline is absolute. It may just take 4-8 years for the opposition and govt to switch and then see the opposition take all their lined up gains. Marginal presidential seats will be marginal presidentially, Safe seats will be safe, and seats that have moved between categories will move.

2) Strong or reoccurring trends are going to continue to influence the future.

This also may make my maps seem 'favorable' to the D's or R's depending on whose perspective I take. I almost always believe that a D/R pack and R/D pack is better than two/three D/R seats closer to the median. The twin packs will survive all ten years while the cracks may flip depending on the environment. This includes regions moving hard towards the left/right, they deserve to be packed just as well as the established regions.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 07, 2020, 10:20:23 PM
()

The three core Detroit counties (Oakland, Macomb, Wayne) are slightly over 5 districts.  There should be one solely in Macomb and one solely in Oakland.  One AA district can take the excess Macomb population and the other can take Southfield, leaving one district to take the southern and western tier of Wayne, plus most of the rest of Oakland.  

The 10 counties in the Detroit CSA are just shy of 7 districts, which logically means one district from Monroe to Washtenaw and then one district from Flint to St Clair, splitting Livingston between them.  It's pretty perfect, actually.  

The rest falls into place pretty naturally: a Grand Rapids district including suburbs in Ottawa, a Lake Michigan district, a Kalamazoo-Battle Creek-Jackson district, a Lansing-centered district, a Midland-Saginaw-Bay City-thumb district centered on Saginaw Bay, and the north.  

This map has 5 Clinton districts (the 4 in Wayne/Oakland + the Ann Arbor district) but the Lansing district is only Trump +2 and is more Democratic downballot, and the Flint district is Trump +10 but is basically even if you add 2012 to 2016.  

Flint really belongs with Saginaw, maybe not Midland and Bay, but at least it should have Saginaw in with it.  If there's 1 real COI on the whole map outside the Detroit metro, it would be Flint with the Tri-Cities area.
not really.  You just want them together so the seat doesn't vote Trump.  Saginaw and Flint are different cities, not a single COI.  Now if I'm a Republican on the commission, I might still agree to a Flint-Saginaw district, it's a small concession.  But the other side would need to cooperate in other areas.  It's inevitable some districts will be drawn in a way that disproportionately favor one party, but the whole map can't be drawn with subtle decisions that all happen to favor 1 party.

That's ridiculous.  Putting Flint with Saginaw isn't a concession.   The two urban areas are extremely similar.   They both even have significant Black populations.   If that's how Republicans are going to be than the commission is doomed to fail.   You have to agree to basic level COI guidelines,  not just making sure no line benefits Democrats without concessions.

This isn't warfare.
2 separate metros that happen to be similar doesn't make a COI.  That's not how COIs work.  With that logic Flint and Lansing could be a COI too.  I'd be fine with that, you wouldn't.  My point is that I'd be fine with a Flint-Saginaw district, but the rest of the map can't all be drawn to favor dems as well.

Genesee's median income is $39,000,  Saginaw's is $41,000,  Ingham (Lansing) is $54,000.

Also Genesee is 20.7% Black, Saginaw is 18.8% Black, Ingham is 11.8% black.

From 2010 to 2018,  Genesee and Saginaw have both declined in population by 4.4% and 4.7% respectively.   Ingham has grown 4.2%.

I could go on and on here, but the point is clear.

Flint and Saginaw are both urban, and have way more in common with each other than the rural counties around them (or Lansing).   If there's going to be any discussion at all about "COI's" (like you've brought up dozens of times in this thread) then there has to be some sort of framework to go by on what that is and what the goal is to be,  otherwise any district drawn anywhere can be considered a partisan gerrymander.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 07, 2020, 10:26:34 PM
()

The three core Detroit counties (Oakland, Macomb, Wayne) are slightly over 5 districts.  There should be one solely in Macomb and one solely in Oakland.  One AA district can take the excess Macomb population and the other can take Southfield, leaving one district to take the southern and western tier of Wayne, plus most of the rest of Oakland.  

The 10 counties in the Detroit CSA are just shy of 7 districts, which logically means one district from Monroe to Washtenaw and then one district from Flint to St Clair, splitting Livingston between them.  It's pretty perfect, actually.  

The rest falls into place pretty naturally: a Grand Rapids district including suburbs in Ottawa, a Lake Michigan district, a Kalamazoo-Battle Creek-Jackson district, a Lansing-centered district, a Midland-Saginaw-Bay City-thumb district centered on Saginaw Bay, and the north.  

This map has 5 Clinton districts (the 4 in Wayne/Oakland + the Ann Arbor district) but the Lansing district is only Trump +2 and is more Democratic downballot, and the Flint district is Trump +10 but is basically even if you add 2012 to 2016.  

Flint really belongs with Saginaw, maybe not Midland and Bay, but at least it should have Saginaw in with it.  If there's 1 real COI on the whole map outside the Detroit metro, it would be Flint with the Tri-Cities area.
not really.  You just want them together so the seat doesn't vote Trump.  Saginaw and Flint are different cities, not a single COI.  Now if I'm a Republican on the commission, I might still agree to a Flint-Saginaw district, it's a small concession.  But the other side would need to cooperate in other areas.  It's inevitable some districts will be drawn in a way that disproportionately favor one party, but the whole map can't be drawn with subtle decisions that all happen to favor 1 party.

That's ridiculous.  Putting Flint with Saginaw isn't a concession.   The two urban areas are extremely similar.   They both even have significant Black populations.   If that's how Republicans are going to be than the commission is doomed to fail.   You have to agree to basic level COI guidelines,  not just making sure no line benefits Democrats without concessions.

This isn't warfare.
2 separate metros that happen to be similar doesn't make a COI.  That's not how COIs work.  With that logic Flint and Lansing could be a COI too.  I'd be fine with that, you wouldn't.  My point is that I'd be fine with a Flint-Saginaw district, but the rest of the map can't all be drawn to favor dems as well.

Genesee's median income is $39,000,  Saginaw's is $41,000,  Ingham (Lansing) is $54,000.

Also Genesee is 20.7% Black, Saginaw is 18.8% Black, Ingham is 11.8% black.

From 2010 to 2018,  Genesee and Saginaw have both declined in population by 4.4% and 4.7% respectively.   Ingham has grown 4.2%.

I could go on and on here, but the point is clear.

Flint and Saginaw are both urban, and have way more in common with each other than the rural counties around them (or Lansing).   If there's going to be any discussion at all about "COI's" (like you've brought up dozens of times in this thread) then there has to be some sort of framework to go by on what that is and what the goal is to be,  otherwise any district drawn anywhere can be considered a partisan gerrymander.
Nice stats on 3 cities!  Doesn't make a coi.  Again I wasn't arguing Flint and Lansing are a coi, just used that as an example of how you line of thinking could be used against you. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on February 08, 2020, 12:08:47 AM

Flint really belongs with Saginaw, maybe not Midland and Bay, but at least it should have Saginaw in with it.  If there's 1 real COI on the whole map outside the Detroit metro, it would be Flint with the Tri-Cities area.

()

The Detroit CSA is an objective measure of COI, but if you insist, here's a version with Genesee + Saginaw + Genesee-adjacent leftovers from neighboring districts.  It's Trump +2.  


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 08, 2020, 02:26:18 AM
https://davesredistricting.org/join/878acdf9-d9e1-49cb-840a-fc56c0e492b8
here's a competitive map that slightly favors republicans.  While dems would win about half of the seats in a year like 2018 maybe a majority, a decent r year could be a slaughter.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 08, 2020, 04:55:10 AM
not really.  You just want them together so the seat doesn't vote Trump.  Saginaw and Flint are different cities, not a single COI.  Now if I'm a Republican on the commission, I might still agree to a Flint-Saginaw district, it's a small concession.  But the other side would need to cooperate in other areas.  It's inevitable some districts will be drawn in a way that disproportionately favor one party, but the whole map can't be drawn with subtle decisions that all happen to favor 1 party.

The commission isn't made up of political apparatchiks or rabid party hacks. All the members are selected at random from a pool of independent applicants. And to serve on the commission you can't actually have any political ties whatsoever (no position within a party, staffer, lobbyist, consultant etc), merely that you registered as a member of a party on voter rolls. Just look at the Arizona commission for what the membership will be like. All lawyers, most with doctorates and additional degrees, and with no actual political links.
The aim of the commission is not to draw a bipartisan gerrymander. It's to draw a fair map that prioritises COIs while making sure it doesn't advantage either party (and yes that means adjusting for the geographic disadvantage).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 08, 2020, 10:01:54 AM
not really.  You just want them together so the seat doesn't vote Trump.  Saginaw and Flint are different cities, not a single COI.  Now if I'm a Republican on the commission, I might still agree to a Flint-Saginaw district, it's a small concession.  But the other side would need to cooperate in other areas.  It's inevitable some districts will be drawn in a way that disproportionately favor one party, but the whole map can't be drawn with subtle decisions that all happen to favor 1 party.

The commission isn't made up of political apparatchiks or rabid party hacks. All the members are selected at random from a pool of independent applicants. And to serve on the commission you can't actually have any political ties whatsoever (no position within a party, staffer, lobbyist, consultant etc), merely that you registered as a member of a party on voter rolls. Just look at the Arizona commission for what the membership will be like. All lawyers, most with doctorates and additional degrees, and with no actual political links.
The aim of the commission is not to draw a bipartisan gerrymander. It's to draw a fair map that prioritises COIs while making sure it doesn't advantage either party (and yes that means adjusting for the geographic disadvantage).

Yes, I thought I covered this well in the breakdown, but I guess it deserves to be repeated. This isn't a NJ style commission where the commissioners have constant chats with the party in question, leading to wheeling and dealing. A commission like this listens to public input and then passes off their idea of approximate COIs to a chosen mapping firm. Once preliminary maps are presented, the commissioners may haggle over smaller details, however the core plan was selected by the people (or whomever decides to try and make an argument before the commission in their public hearings) and the demographics of the state. This is what happened in CA, and MIs commission is a mirror version of CAs.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 08, 2020, 10:17:54 AM
Flint and Saginaw are a natural combination, as they're both manufacturing cities with similar sets of economic issues.

However, if you choose not to pair them, then there's one possible combination nobody else has tried yet, namely a Lansing-Saginaw district.

https://davesredistricting.org/join/fd58f3f7-afcc-4211-b3ce-3bb4d1df620a

It's not a particularly natural pairing, but it works better than a Flint-Lansing district, as Saginaw is small enough for them to room for both it and Eaton and Clinton counties.

Flint then goes with either the Thumb counties or with Pontiac and northern Oakland (I think the latter is slightly better, as Pontiac is similar enough even if northern Oakland isn't, but reasonable minds can disagree on this.)

The Thumb then goes with northern and eastern Macomb and the 9th and 11th are neatened from their current iterations but not wildly different. The two Detroit districts can be characterised as one covering the East side, Downtown and Downriver, and one covering the West side and inner suburbs to the north and west.

Livingston, Washtenaw and Monroe aren't exactly a natural community, but it is at least a coherent district based on counties on the edge of the metro area, and I think the Kalamazoo-Battle Creek-Jackson district works rather nicely.

That then forces Ottawa into the 6th and the 3rd compacts into an essentially rectangular shape. I opted to split the rest of the Lower Peninsula on roughly east-west lines, but some might prefer a north-south split.

So the Flint and Saginaw districts are both a bit awkward, but everything else works out surprisingly neatly. Trump won 7 of those districts, but in the case of the 5th his margin was only 0.9% and it practice it would probably return seven Democrats most years.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on February 08, 2020, 10:33:00 AM

The aim of the commission is not to draw a bipartisan gerrymander. It's to draw a fair map that prioritises COIs while making sure it doesn't advantage either party (and yes that means adjusting for the geographic disadvantage).

COIs yes, but I don't see why adjusting for the geographic disadvantage is a necessary part of the commission's responsibilities.  I'm sure some on the commission would think so, but not all. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 08, 2020, 02:11:02 PM

The aim of the commission is not to draw a bipartisan gerrymander. It's to draw a fair map that prioritises COIs while making sure it doesn't advantage either party (and yes that means adjusting for the geographic disadvantage).

COIs yes, but I don't see why adjusting for the geographic disadvantage is a necessary part of the commission's responsibilities.  I'm sure some on the commission would think so, but not all.  
The instructions for the commission say partisan fairness is one of many criteria included.  Certainly different commissioners will have different ideas about what a fair map would actually look like, but folks here suggesting partisan fairness automatically means drawing lines with an intent to help out Democrats are kidding themselves and don't understand the first thing about partisan fairness.  There is no specific formula or criteria included in the law to define partisan fairness, for good reason.  The intent of the law wasn't to create a map that elects a delegation that exactly matches the statewide popular vote, it was to ensure neither side draws a map that was clearly biased, even it it follows the other criteria.  The current map is like that, it favors the republican party and it's clear that was the rationale behind every part of the map.  The commission has Republicans, Independents, and Democrats, people from each side have to agree.  Democrats could try to make the case that a fair map means drawing lines with intent to help them, but I doubt it would be very convincing to the republicans who need to agree on the map.  The map needs to be fair, sensible, and bipartisan.  If the commission works like it's supposed to, you'll see a map that is't obviously drawn to favor one party.  Here is a good starting point for a fair map.  Ik it has 14 districts, but it could be worked with https://projects.fivethirtyeight.com/redistricting-maps/michigan/#Compact
https://davesredistricting.org/join/7a9f5f27-c686-4b38-b432-85ae3efe10e4


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 08, 2020, 02:38:13 PM
Flint and Saginaw are a natural combination, as they're both manufacturing cities with similar sets of economic issues.

However, if you choose not to pair them, then there's one possible combination nobody else has tried yet, namely a Lansing-Saginaw district.

https://davesredistricting.org/join/fd58f3f7-afcc-4211-b3ce-3bb4d1df620a

It's not a particularly natural pairing, but it works better than a Flint-Lansing district, as Saginaw is small enough for them to room for both it and Eaton and Clinton counties.

Flint then goes with either the Thumb counties or with Pontiac and northern Oakland (I think the latter is slightly better, as Pontiac is similar enough even if northern Oakland isn't, but reasonable minds can disagree on this.)

The Thumb then goes with northern and eastern Macomb and the 9th and 11th are neatened from their current iterations but not wildly different. The two Detroit districts can be characterised as one covering the East side, Downtown and Downriver, and one covering the West side and inner suburbs to the north and west.

Livingston, Washtenaw and Monroe aren't exactly a natural community, but it is at least a coherent district based on counties on the edge of the metro area, and I think the Kalamazoo-Battle Creek-Jackson district works rather nicely.

That then forces Ottawa into the 6th and the 3rd compacts into an essentially rectangular shape. I opted to split the rest of the Lower Peninsula on roughly east-west lines, but some might prefer a north-south split.

So the Flint and Saginaw districts are both a bit awkward, but everything else works out surprisingly neatly. Trump won 7 of those districts, but in the case of the 5th his margin was only 0.9% and it practice it would probably return seven Democrats most years.

I really like this map, and this does seem realistic. The only place I would try to change for fairness is the Bay City area; if it's possible to put the split in a rural county instead, I think that's better. (I generally prefer splitting rural counties to urban ones because you're affecting fewer people that way.)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 08, 2020, 03:08:59 PM
Going into Bay was mostly a legacy effect - initially I wanted to get Bay City in (on the basis that southern Bay is fairly distinct from much more rural northern Bay) but then I found that based off 2018 population estimates it's not quite big enough. That will probably still be the case on the census figures, but it might be possible to take most of Midland instead (just leaving off the rural fringes.)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 08, 2020, 07:44:48 PM
Going into Bay was mostly a legacy effect - initially I wanted to get Bay City in (on the basis that southern Bay is fairly distinct from much more rural northern Bay) but then I found that based off 2018 population estimates it's not quite big enough. That will probably still be the case on the census figures, but it might be possible to take most of Midland instead (just leaving off the rural fringes.)
While your map doesn't really favor one party,  you split Oakland 5 ways heavily diluting their voice.  It is possible to only split it once, with one district entirely within it (probably a Dem seat) and exurban areas going elsewhere.  Also some dems might be nervous about all those Clinton+5 or less seats.  They are all trending R.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 08, 2020, 08:56:04 PM
https://imgur.com/a/pQIkR45 (https://imgur.com/a/pQIkR45)
https://imgur.com/7d7Ddl7 (https://imgur.com/7d7Ddl7)
6-1-6 map
4 county breaks


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: cvparty on February 08, 2020, 09:22:53 PM
https://imgur.com/a/pQIkR45 (https://imgur.com/a/pQIkR45)
https://imgur.com/7d7Ddl7 (https://imgur.com/7d7Ddl7)
6-1-6 map
4 county breaks
that looks more like 7 splits. also your number of splits definitely has any significance with regard to redistricting


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 08, 2020, 09:30:24 PM
https://imgur.com/a/pQIkR45 (https://imgur.com/a/pQIkR45)
https://imgur.com/7d7Ddl7 (https://imgur.com/7d7Ddl7)
6-1-6 map
4 county breaks
that looks more like 7 splits. also your number of splits definitely has any significance with regard to redistricting
I only counted a split when a county that could in theory be kept whole wasn't.  Wayne, Oakland, and Macomb will be split no matter what, unles Baker v Carr is overturned.  But regardless let's not get stuck in the weeds.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 08, 2020, 10:35:46 PM
()
https://davesredistricting.org/join/b89d1b54-490e-4440-b3b6-29d27d0081dd (https://davesredistricting.org/join/b89d1b54-490e-4440-b3b6-29d27d0081dd)
1 - R+11
2 - R+7
3 - R+7
4 - R+4
5 - R+5
6 - R+5
7 - R+4
8 - R+5
9 - R+6
10 - R+6
11 - D+18
12 - D+28
13 - D+32
The Michigan GOP would like to introduce you to this totally fair map which definitely has no ulterior motives.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 09, 2020, 12:33:21 AM
()
https://davesredistricting.org/join/b89d1b54-490e-4440-b3b6-29d27d0081dd (https://davesredistricting.org/join/b89d1b54-490e-4440-b3b6-29d27d0081dd)
1 - R+11
2 - R+7
3 - R+7
4 - R+4
5 - R+5
6 - R+5
7 - R+4
8 - R+5
9 - R+6
10 - R+6
11 - D+18
12 - D+28
13 - D+32
The Michigan GOP would like to introduce you to this totally fair map which definitely has no ulterior motives.
how do u directly upload a pic like that?
but it's amazing u could draw a map that lopsided that clean looking.  The only obvious give away is arm reaching into Pontiac.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on February 09, 2020, 01:33:01 AM
()
https://davesredistricting.org/join/b89d1b54-490e-4440-b3b6-29d27d0081dd (https://davesredistricting.org/join/b89d1b54-490e-4440-b3b6-29d27d0081dd)
1 - R+11
2 - R+7
3 - R+7
4 - R+4
5 - R+5
6 - R+5
7 - R+4
8 - R+5
9 - R+6
10 - R+6
11 - D+18
12 - D+28
13 - D+32
The Michigan GOP would like to introduce you to this totally fair map which definitely has no ulterior motives.
how do u directly upload a pic like that?
but it's amazing u could draw a map that lopsided that clean looking.  The only obvious give away is arm reaching into Pontiac.

I copy and paste into discord and use that link here.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 09, 2020, 02:59:23 AM
()
https://davesredistricting.org/join/b89d1b54-490e-4440-b3b6-29d27d0081dd (https://davesredistricting.org/join/b89d1b54-490e-4440-b3b6-29d27d0081dd)
1 - R+11
2 - R+7
3 - R+7
4 - R+4
5 - R+5
6 - R+5
7 - R+4
8 - R+5
9 - R+6
10 - R+6
11 - D+18
12 - D+28
13 - D+32
The Michigan GOP would like to introduce you to this totally fair map which definitely has no ulterior motives.
how do u directly upload a pic like that?
but it's amazing u could draw a map that lopsided that clean looking.  The only obvious give away is arm reaching into Pontiac.
And the arm reaching to Pontiac can be justified under the VRA without too much effort.
And it's a reminder that just because a map that looks clean doesn't mean it's at all fair. That's why Independent Commissions take into account partisan fairness.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 09, 2020, 04:33:12 AM
()
https://davesredistricting.org/join/b89d1b54-490e-4440-b3b6-29d27d0081dd (https://davesredistricting.org/join/b89d1b54-490e-4440-b3b6-29d27d0081dd)
1 - R+11
2 - R+7
3 - R+7
4 - R+4
5 - R+5
6 - R+5
7 - R+4
8 - R+5
9 - R+6
10 - R+6
11 - D+18
12 - D+28
13 - D+32
The Michigan GOP would like to introduce you to this totally fair map which definitely has no ulterior motives.
how do u directly upload a pic like that?
but it's amazing u could draw a map that lopsided that clean looking.  The only obvious give away is arm reaching into Pontiac.
And the arm reaching to Pontiac can be justified under the VRA without too much effort.
And it's a reminder that just because a map that looks clean doesn't mean it's at all fair. That's why Independent Commissions take into account partisan fairness.
The arm into Pontiac isn't needed to fufill the vra tho, 2 roughly half black districts can be created with limited intrusion into Wayne.  It can be legally justified (but there is an argument it is using race as a predominate factor which isn't legal)  but courts have not struck down a district similar to that so who knows.  My point was that the arm is the one part of your map that looks gerrymandered to the average voter.  How did you upload the photo?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 09, 2020, 05:43:01 AM
Going into Bay was mostly a legacy effect - initially I wanted to get Bay City in (on the basis that southern Bay is fairly distinct from much more rural northern Bay) but then I found that based off 2018 population estimates it's not quite big enough. That will probably still be the case on the census figures, but it might be possible to take most of Midland instead (just leaving off the rural fringes.)
While your map doesn't really favor one party,  you split Oakland 5 ways heavily diluting their voice.  It is possible to only split it once, with one district entirely within it (probably a Dem seat) and exurban areas going elsewhere.  Also some dems might be nervous about all those Clinton+5 or less seats.  They are all trending R.

a) Oakland isn't a single thing - it's a huge county ranging from core bits of the Detroit urban area in the SE, to suburbs in the middle to rural areas in the north. 9 and 11 split the suburban bits and you can reasonably argue that it's better to unit them and then have one district solely in Macomb, but otherwise the map matches up to the different COIs in the county reasonable well.

b) Those seats aren't trending R. The northern bits of 4 are trending R, but the southern bits are trending D and there's more population in the south of the seat (and the south is growing and the north isn't). Also, Saginaw County has a significant non-white population, so there are limits to how much further it can swing unless it goes full Kentucky (in which case Democrats are screwed whatever happens.)

In 8, Washtenaw has about half the electorate and is trending D (although they may be close to tapped out in the east of the county and it's not clear whether the same will happen in the west too.) Livingston is also trending D, so it's only Monroe which is the issue and that's only about a fifth of the electorate.

In 9, most of the Macomb bits are swinging R, but the minority population in south Macomb is growing rapidly, which ought to take the edge off that. In Oakland, the trend is towards Democrats. That said, if you swapped St. Clair Shores for Mt. Clemens and part of Clinton Township (which looks cleaner on a map but splits more townships) then it probably would be an issue.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 09, 2020, 02:42:28 PM
Going into Bay was mostly a legacy effect - initially I wanted to get Bay City in (on the basis that southern Bay is fairly distinct from much more rural northern Bay) but then I found that based off 2018 population estimates it's not quite big enough. That will probably still be the case on the census figures, but it might be possible to take most of Midland instead (just leaving off the rural fringes.)
While your map doesn't really favor one party,  you split Oakland 5 ways heavily diluting their voice.  It is possible to only split it once, with one district entirely within it (probably a Dem seat) and exurban areas going elsewhere.  Also some dems might be nervous about all those Clinton+5 or less seats.  They are all trending R.

a) Oakland isn't a single thing - it's a huge county ranging from core bits of the Detroit urban area in the SE, to suburbs in the middle to rural areas in the north. 9 and 11 split the suburban bits and you can reasonably argue that it's better to unit them and then have one district solely in Macomb, but otherwise the map matches up to the different COIs in the county reasonable well.

b) Those seats aren't trending R. The northern bits of 4 are trending R, but the southern bits are trending D and there's more population in the south of the seat (and the south is growing and the north isn't). Also, Saginaw County has a significant non-white population, so there are limits to how much further it can swing unless it goes full Kentucky (in which case Democrats are screwed whatever happens.)

In 8, Washtenaw has about half the electorate and is trending D (although they may be close to tapped out in the east of the county and it's not clear whether the same will happen in the west too.) Livingston is also trending D, so it's only Monroe which is the issue and that's only about a fifth of the electorate.

In 9, most of the Macomb bits are swinging R, but the minority population in south Macomb is growing rapidly, which ought to take the edge off that. In Oakland, the trend is towards Democrats. That said, if you swapped St. Clair Shores for Mt. Clemens and part of Clinton Township (which looks cleaner on a map but splits more townships) then it probably would be an issue.
ok, you can keep kidding yourself.  Sure maybe the massive trends from 2012 to 2016 will stay frozen while d trending areas stay trending D :D For now those Clinton+4 seats might be somewhat safe but in a Dem midterm your map collapses.  It is clear you spread dems incredibly thin so they still have a chance at winning 7 seats, but your map is too partisan for republicans, funky for independants, and risky for dems.  This is a better alternative in every way: https://imgur.com/a/pQIkR45


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 09, 2020, 03:02:57 PM
You seem to have the idea that everybody else is biased, whereas you are fair. The former may be true, the latter is frankly delusional. You're just much better at seeing other people's biases than admitting your own.

I would agree it's not necessarily a plan that is likely to be drawn, but that wasn't the point. It was just an experiment to see what happens if you draw a Lansing-Saginaw district. Answer: the Flint and Lansing districts are a bit odd, everything else makes sense in isolation but you split a few more counties than you necessarily need to.

A lot of the decisions on the map seem to come down to how Flint, Saginaw and the Thumb get treated. If you put Flint with the Thumb, you're drawing a Republican gerrymander. If you put Flint and Saginaw in the same district and extend it to the Huron coast, you're going to produce a strong Democratic map around Detroit (as you soak up heavily Republican bits of northern Macomb and/or Oakland, allowing Democratic strongholds in the south of those counties to outvote lean-Republican areas further north.) If you put Flint and Saginaw in the same district but let the Thumb district head north via Bay, it's more mixed but tends to benefit Republicans as they're going to be favoured to win the Macomb district.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 09, 2020, 03:27:47 PM
You seem to have the idea that everybody else is biased, whereas you are fair. The former may be true, the latter is frankly delusional. You're just much better at seeing other people's biases than admitting your own.

I would agree it's not necessarily a plan that is likely to be drawn, but that wasn't the point. It was just an experiment to see what happens if you draw a Lansing-Saginaw district. Answer: the Flint and Lansing districts are a bit odd, everything else makes sense in isolation but you split a few more counties than you necessarily need to.

A lot of the decisions on the map seem to come down to how Flint, Saginaw and the Thumb get treated. If you put Flint with the Thumb, you're drawing a Republican gerrymander. If you put Flint and Saginaw in the same district and extend it to the Huron coast, you're going to produce a strong Democratic map around Detroit (as you soak up heavily Republican bits of northern Macomb and/or Oakland, allowing Democratic strongholds in the south of those counties to outvote lean-Republican areas further north.) If you put Flint and Saginaw in the same district but let the Thumb district head north via Bay, it's more mixed but tends to benefit Republicans as they're going to be favoured to win the Macomb district.
I never claimed not to have biases, but on this map https://imgur.com/a/pQIkR45 I turned off partisan data and based it on 538's map keeping counties whole as much as possible.  Not every map I've drawn is fair but that one is as the data shows https://imgur.com/7d7Ddl7 6D, 6R, 1 even.    Also I don't think you can get a Flint-Saginaw district all the way to northern Macomb unless you make a weird tendril which the commission isn't doing.  You can get a Flint district to the Huron coast, only if you drop Saginaw.  I think the most fair and straightforward way to divide up the northern suburbs is a solid R district that includes Livingston county, northern and western Oakland, and northern Macomb.  Then a solid D district in the remainder of Oakland, and a tossup in the remainder of Macomb.  The one potential alteration is having a black seat go into southern Oakland to get more black voters, but that doesn't really change the partisan makeup because the Oakland seat still solidly votes Clinton due to Pontiac and places like Royal Oak.  1D-1T-1R is a fair breakdown of the Macomb-Oakland-Livingston area.  Those counties combined voted Trump narrowly and Obama narrowly. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 09, 2020, 03:30:50 PM
You seem to have the idea that everybody else is biased, whereas you are fair. The former may be true, the latter is frankly delusional. You're just much better at seeing other people's biases than admitting your own.

I would agree it's not necessarily a plan that is likely to be drawn, but that wasn't the point. It was just an experiment to see what happens if you draw a Lansing-Saginaw district. Answer: the Flint and Lansing districts are a bit odd, everything else makes sense in isolation but you split a few more counties than you necessarily need to.

A lot of the decisions on the map seem to come down to how Flint, Saginaw and the Thumb get treated. If you put Flint with the Thumb, you're drawing a Republican gerrymander. If you put Flint and Saginaw in the same district and extend it to the Huron coast, you're going to produce a strong Democratic map around Detroit (as you soak up heavily Republican bits of northern Macomb and/or Oakland, allowing Democratic strongholds in the south of those counties to outvote lean-Republican areas further north.) If you put Flint and Saginaw in the same district but let the Thumb district head north via Bay, it's more mixed but tends to benefit Republicans as they're going to be favoured to win the Macomb district.
I never claimed not to have biases, but on this map https://imgur.com/a/pQIkR45 I turned off partisan data and based it on 538's map keeping counties whole as much as possible.  Not every map I've drawn is fair but that one is as the data shows https://imgur.com/7d7Ddl7 6D, 6R, 1 even.    Also I don't think you can get a Flint-Saginaw district all the way to northern Macomb unless you make a weird tendril which the commission isn't doing.  You can get a Flint district to the Huron coast, only if you drop Saginaw.  I think the most fair and straightforward way to divide up the northern suburbs is a solid R district that includes Livingston county, northern and western Oakland, and northern Macomb.  Then a solid D district in the remainder of Oakland, and a tossup in the remainder of Macomb.  The one potential alteration is having a black seat go into southern Oakland to get more black voters, but that doesn't really change the partisan makeup because the Oakland seat still solidly votes Clinton due to Pontiac and places like Royal Oak.  1D-1T-1R is a fair breakdown of the Macomb-Oakland-Livingston area.  Those counties combined voted Trump narrowly and Obama narrowly. 
could you link me the map plz?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 09, 2020, 04:09:01 PM
You seem to have the idea that everybody else is biased, whereas you are fair. The former may be true, the latter is frankly delusional. You're just much better at seeing other people's biases than admitting your own.

I would agree it's not necessarily a plan that is likely to be drawn, but that wasn't the point. It was just an experiment to see what happens if you draw a Lansing-Saginaw district. Answer: the Flint and Lansing districts are a bit odd, everything else makes sense in isolation but you split a few more counties than you necessarily need to.

A lot of the decisions on the map seem to come down to how Flint, Saginaw and the Thumb get treated. If you put Flint with the Thumb, you're drawing a Republican gerrymander. If you put Flint and Saginaw in the same district and extend it to the Huron coast, you're going to produce a strong Democratic map around Detroit (as you soak up heavily Republican bits of northern Macomb and/or Oakland, allowing Democratic strongholds in the south of those counties to outvote lean-Republican areas further north.) If you put Flint and Saginaw in the same district but let the Thumb district head north via Bay, it's more mixed but tends to benefit Republicans as they're going to be favoured to win the Macomb district.
I never claimed not to have biases, but on this map https://imgur.com/a/pQIkR45 I turned off partisan data and based it on 538's map keeping counties whole as much as possible.  Not every map I've drawn is fair but that one is as the data shows https://imgur.com/7d7Ddl7 6D, 6R, 1 even.    Also I don't think you can get a Flint-Saginaw district all the way to northern Macomb unless you make a weird tendril which the commission isn't doing.  You can get a Flint district to the Huron coast, only if you drop Saginaw.  I think the most fair and straightforward way to divide up the northern suburbs is a solid R district that includes Livingston county, northern and western Oakland, and northern Macomb.  Then a solid D district in the remainder of Oakland, and a tossup in the remainder of Macomb.  The one potential alteration is having a black seat go into southern Oakland to get more black voters, but that doesn't really change the partisan makeup because the Oakland seat still solidly votes Clinton due to Pontiac and places like Royal Oak.  1D-1T-1R is a fair breakdown of the Macomb-Oakland-Livingston area.  Those counties combined voted Trump narrowly and Obama narrowly.  
could you link me the map plz?
https://davesredistricting.org/join/bf7fe969-7260-4079-9fba-713e5eb41629
I looked at presidential results and down-ballot tendencies and it would be like this:
4 safe R (6, 9, 10, 11)
2 lean R (7, 13)
2 tossups (1, 8)
1 lean D (12)
4 safe D (2, 3, 4, 5)
Based on the '12+'16 composite it's 6R-1T-6D
In addition to keeping counties whole, I tried my best to keep metros whole too.  MI has a lot of mid sized metros like Flint, Lansing, Grand Rapids, Kalamazoo, ect which can all have their own districts.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 09, 2020, 04:30:20 PM
You seem to have the idea that everybody else is biased, whereas you are fair. The former may be true, the latter is frankly delusional. You're just much better at seeing other people's biases than admitting your own.

I would agree it's not necessarily a plan that is likely to be drawn, but that wasn't the point. It was just an experiment to see what happens if you draw a Lansing-Saginaw district. Answer: the Flint and Lansing districts are a bit odd, everything else makes sense in isolation but you split a few more counties than you necessarily need to.

A lot of the decisions on the map seem to come down to how Flint, Saginaw and the Thumb get treated. If you put Flint with the Thumb, you're drawing a Republican gerrymander. If you put Flint and Saginaw in the same district and extend it to the Huron coast, you're going to produce a strong Democratic map around Detroit (as you soak up heavily Republican bits of northern Macomb and/or Oakland, allowing Democratic strongholds in the south of those counties to outvote lean-Republican areas further north.) If you put Flint and Saginaw in the same district but let the Thumb district head north via Bay, it's more mixed but tends to benefit Republicans as they're going to be favoured to win the Macomb district.
I never claimed not to have biases, but on this map https://imgur.com/a/pQIkR45 I turned off partisan data and based it on 538's map keeping counties whole as much as possible.  Not every map I've drawn is fair but that one is as the data shows https://imgur.com/7d7Ddl7 6D, 6R, 1 even.    Also I don't think you can get a Flint-Saginaw district all the way to northern Macomb unless you make a weird tendril which the commission isn't doing.  You can get a Flint district to the Huron coast, only if you drop Saginaw.  I think the most fair and straightforward way to divide up the northern suburbs is a solid R district that includes Livingston county, northern and western Oakland, and northern Macomb.  Then a solid D district in the remainder of Oakland, and a tossup in the remainder of Macomb.  The one potential alteration is having a black seat go into southern Oakland to get more black voters, but that doesn't really change the partisan makeup because the Oakland seat still solidly votes Clinton due to Pontiac and places like Royal Oak.  1D-1T-1R is a fair breakdown of the Macomb-Oakland-Livingston area.  Those counties combined voted Trump narrowly and Obama narrowly. 
could you link me the map plz?
https://davesredistricting.org/join/bf7fe969-7260-4079-9fba-713e5eb41629
I looked at presidential results and down-ballot tendencies and it would be like this:
4 safe R (6, 9, 10, 11)
2 lean R (7, 13)
2 tossups (1, 8)
1 lean D (12)
4 safe D (2, 3, 4, 5)
Based on the '12+'16 composite it's 6R-1T-6D
In addition to keeping counties whole, I tried my best to keep metros whole too.  MI has a lot of mid sized metros like Flint, Lansing, Grand Rapids, Kalamazoo, ect which can all have their own districts.
I quite honestly love your map, my only minor complaint relates to the 1st and 9th and the fact the border is not a straight line, but that's not really a major thing by any stretch.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 09, 2020, 04:32:02 PM
You seem to have the idea that everybody else is biased, whereas you are fair. The former may be true, the latter is frankly delusional. You're just much better at seeing other people's biases than admitting your own.

I would agree it's not necessarily a plan that is likely to be drawn, but that wasn't the point. It was just an experiment to see what happens if you draw a Lansing-Saginaw district. Answer: the Flint and Lansing districts are a bit odd, everything else makes sense in isolation but you split a few more counties than you necessarily need to.

A lot of the decisions on the map seem to come down to how Flint, Saginaw and the Thumb get treated. If you put Flint with the Thumb, you're drawing a Republican gerrymander. If you put Flint and Saginaw in the same district and extend it to the Huron coast, you're going to produce a strong Democratic map around Detroit (as you soak up heavily Republican bits of northern Macomb and/or Oakland, allowing Democratic strongholds in the south of those counties to outvote lean-Republican areas further north.) If you put Flint and Saginaw in the same district but let the Thumb district head north via Bay, it's more mixed but tends to benefit Republicans as they're going to be favoured to win the Macomb district.
I never claimed not to have biases, but on this map https://imgur.com/a/pQIkR45 I turned off partisan data and based it on 538's map keeping counties whole as much as possible.  Not every map I've drawn is fair but that one is as the data shows https://imgur.com/7d7Ddl7 6D, 6R, 1 even.    Also I don't think you can get a Flint-Saginaw district all the way to northern Macomb unless you make a weird tendril which the commission isn't doing.  You can get a Flint district to the Huron coast, only if you drop Saginaw.  I think the most fair and straightforward way to divide up the northern suburbs is a solid R district that includes Livingston county, northern and western Oakland, and northern Macomb.  Then a solid D district in the remainder of Oakland, and a tossup in the remainder of Macomb.  The one potential alteration is having a black seat go into southern Oakland to get more black voters, but that doesn't really change the partisan makeup because the Oakland seat still solidly votes Clinton due to Pontiac and places like Royal Oak.  1D-1T-1R is a fair breakdown of the Macomb-Oakland-Livingston area.  Those counties combined voted Trump narrowly and Obama narrowly. 

Sorry, I didn't put that clearly - I'm not talking about the Flint-Saginaw district going into Macomb, but about the knock-on consequences. The Thumb has the electorate for half a congressional district and if you don't get the other half from Flint or from the north, then you either have to take it from Oakland or Macomb or both, which creates a Republican pack and means that you're more likely to get Democratic seats in the rest of Oakland and Macomb.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 09, 2020, 04:45:18 PM
I have  mentioned before that if I personally tend to think thee thumb belongs with the upper chunk of the state, connected through Bay City of course. Now, I didn't always hold this view, I was converted by talking with various residents and reading the discussions I alluded to in the opener. In general, only really St. Clair is seen as potentially being a good partner to various Detroit Metro seats. The rest are seen as culturally more aligned with those on the other side of the Tri-Cities, itself a recognized region of Michigan by most groups which require regional divisions.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 09, 2020, 04:56:56 PM
You seem to have the idea that everybody else is biased, whereas you are fair. The former may be true, the latter is frankly delusional. You're just much better at seeing other people's biases than admitting your own.

I would agree it's not necessarily a plan that is likely to be drawn, but that wasn't the point. It was just an experiment to see what happens if you draw a Lansing-Saginaw district. Answer: the Flint and Lansing districts are a bit odd, everything else makes sense in isolation but you split a few more counties than you necessarily need to.

A lot of the decisions on the map seem to come down to how Flint, Saginaw and the Thumb get treated. If you put Flint with the Thumb, you're drawing a Republican gerrymander. If you put Flint and Saginaw in the same district and extend it to the Huron coast, you're going to produce a strong Democratic map around Detroit (as you soak up heavily Republican bits of northern Macomb and/or Oakland, allowing Democratic strongholds in the south of those counties to outvote lean-Republican areas further north.) If you put Flint and Saginaw in the same district but let the Thumb district head north via Bay, it's more mixed but tends to benefit Republicans as they're going to be favoured to win the Macomb district.
I never claimed not to have biases, but on this map https://imgur.com/a/pQIkR45 I turned off partisan data and based it on 538's map keeping counties whole as much as possible.  Not every map I've drawn is fair but that one is as the data shows https://imgur.com/7d7Ddl7 6D, 6R, 1 even.    Also I don't think you can get a Flint-Saginaw district all the way to northern Macomb unless you make a weird tendril which the commission isn't doing.  You can get a Flint district to the Huron coast, only if you drop Saginaw.  I think the most fair and straightforward way to divide up the northern suburbs is a solid R district that includes Livingston county, northern and western Oakland, and northern Macomb.  Then a solid D district in the remainder of Oakland, and a tossup in the remainder of Macomb.  The one potential alteration is having a black seat go into southern Oakland to get more black voters, but that doesn't really change the partisan makeup because the Oakland seat still solidly votes Clinton due to Pontiac and places like Royal Oak.  1D-1T-1R is a fair breakdown of the Macomb-Oakland-Livingston area.  Those counties combined voted Trump narrowly and Obama narrowly.  
could you link me the map plz?
https://davesredistricting.org/join/bf7fe969-7260-4079-9fba-713e5eb41629
I looked at presidential results and down-ballot tendencies and it would be like this:
4 safe R (6, 9, 10, 11)
2 lean R (7, 13)
2 tossups (1, 8)
1 lean D (12)
4 safe D (2, 3, 4, 5)
Based on the '12+'16 composite it's 6R-1T-6D
In addition to keeping counties whole, I tried my best to keep metros whole too.  MI has a lot of mid sized metros like Flint, Lansing, Grand Rapids, Kalamazoo, ect which can all have their own districts.
Is it possible to better compactness by putting Oscoda and Crawford counties in the 1st in return for Osceola joining the 9th?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 09, 2020, 06:33:55 PM
https://davesredistricting.org/join/435dcad3-d0f2-435b-abe8-c5eee7aa8575
In this map we have:
a 1st district more along the lines of the 2000s iteration of the district
a Flint-Thumb district, with Saginaw and Midland thrown in a Lansing district
a nice, neat, compact Grand Rapids seat
1 seat nested entirely within Macomb, another nested solely within Oakland, and 2 nested solely with Wayne, and then 2 seats around those, enveloping them
Kalamazoo and Battle Creek are kept in the same seat
the Macomb CD and Flint CD are the tipping point districts


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 09, 2020, 07:14:36 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else. 

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together. 

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 09, 2020, 07:23:27 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 09, 2020, 07:29:41 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.

Most of Detroit itself is suburban sprawl, there's extremely little true "Metro" in the sense of what you see in Los Angeles or New York in Detroit.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 09, 2020, 07:33:50 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.
But you don't have to reach into Oakland for an adequate black district, and the more areas you take from Southern Oakland the more you need to eat into exurban metro Detroit, which is a CoI worth keeping together.
So crossing 8 Mile is still undesirable in most cases.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 09, 2020, 08:12:52 PM
https://davesredistricting.org/join/435dcad3-d0f2-435b-abe8-c5eee7aa8575
In this map we have:
a 1st district more along the lines of the 2000s iteration of the district
a Flint-Thumb district, with Saginaw and Midland thrown in a Lansing district
a nice, neat, compact Grand Rapids seat
1 seat nested entirely within Macomb, another nested solely within Oakland, and 2 nested solely with Wayne, and then 2 seats around those, enveloping them
Kalamazoo and Battle Creek are kept in the same seat
the Macomb CD and Flint CD are the tipping point districts
I like your map, it does split counties more than mine but I'd say respects COIs a bit better.  I see you made the Lansing district more dem but the Flint district is more competitive.  Some might criticize your map due to the tipping point districts being red leaning in 2016, but down ballot Flint and Macomb are more Dem than they are presidentially so those districts would be closer to true tossups.  I like how you fixed my long western MI strip and made more compact districts.  My only criticism of your map is the UP-Bay City district.  I'd trade Traverse City and Bay City between their respective districts.  Other than that, I would support this map as a commissioner. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 09, 2020, 08:27:01 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else. 

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together. 

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
Oakland isn't as cohesive as other counties but I don't get how splitting it up better reflects COIs.  The main divide in Oakland is exurban vs suburban, and both my map and the speaker's map keep those areas together.  I do see potential merit in having some black areas in Oakland go to Wayne because they would probably be better represented by Lawrence than Levin; and such a move might be necessary due to population loss in Wayne.  But Dems would probably prefer keeping the county border unbroken, more blacks in Levin's district will make it safer but pushing it out further into the exurbs could endanger him.  I know incumbent interests aren't taken into account, but partisan fairness is, and a safe Dem district in Oakland is fair. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 09, 2020, 08:28:52 PM
https://davesredistricting.org/join/435dcad3-d0f2-435b-abe8-c5eee7aa8575
In this map we have:
a 1st district more along the lines of the 2000s iteration of the district
a Flint-Thumb district, with Saginaw and Midland thrown in a Lansing district
a nice, neat, compact Grand Rapids seat
1 seat nested entirely within Macomb, another nested solely within Oakland, and 2 nested solely with Wayne, and then 2 seats around those, enveloping them
Kalamazoo and Battle Creek are kept in the same seat
the Macomb CD and Flint CD are the tipping point districts
I like your map, it does split counties more than mine but I'd say respects COIs a bit better.  I see you made the Lansing district more dem but the Flint district is more competitive.  Some might criticize your map due to the tipping point districts being red leaning in 2016, but down ballot Flint and Macomb are more Dem than they are presidentially so those districts would be closer to true tossups.  I like how you fixed my long western MI strip and made more compact districts.  My only criticism of your map is the UP-Bay City district.  I'd trade Traverse City and Bay City between their respective districts.  Other than that, I would support this map as a commissioner.  
for what its worth you could shift Bay, Arenac, Iosco, Omegaw, Roscommon, and Gladwin into the Muskegon seat and Grand Traverse, Wexford, Mason, Manistee, Benzie, and Leelanau into the UP district. But this overall arrangement hurts compactness a bit. UP is 58 and Muskegon is 43 - in my original its 59 and 88, respectively.
And in all honesty I'm not sure if UP is necessarily a better fit with any specific area of the LP besides the counties immediately to its south in an around the Mackinac bridge. At least here we have Western Michigan less divided.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 09, 2020, 09:01:38 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.
But you don't have to reach into Oakland for an adequate black district, and the more areas you take from Southern Oakland the more you need to eat into exurban metro Detroit, which is a CoI worth keeping together.
So crossing 8 Mile is still undesirable in most cases.

Even then,  Detroit is in Northeastern Wayne, and southeastern Oakland is more "Metro" and urban than southern Wayne.    There's exurban metro Detroit in western and southern Wayne, and suburban Detroit in Oakland.  

Anyway you put it the county borders don't really mean much in Detroit,  at least in respect to Oakland and Wayne.  

The current MI-11 was probably drawn as a Suburban district surrounding the AA districts (to the benefit of Republicans at the time), which puts all the communities of interests together, and the current MI-9 is pretty close to the Macomb working class district.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 09, 2020, 09:21:01 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.
But you don't have to reach into Oakland for an adequate black district, and the more areas you take from Southern Oakland the more you need to eat into exurban metro Detroit, which is a CoI worth keeping together.
So crossing 8 Mile is still undesirable in most cases.

Even then,  Detroit is in Northeastern Wayne, and southeastern Oakland is more "Metro" and urban than southern Wayne.    There's exurban metro Detroit in western and southern Wayne, and suburban Detroit in Oakland.  

Anyway you put it the county borders don't really mean much in Detroit,  at least in respect to Oakland and Wayne.  

The current MI-11 was probably drawn as a Suburban district surrounding the AA districts, which puts all the communities of interests together, and the current MI-9 is pretty close to the Macomb working class district.

The current MI-09/11 were drawn to to maximize GOP potential in the Metro region. The 9th packs in the near suburbs which at the time were the solid obama parts of the region. The 11th is designed to squiggle around and collect the 'further' suburbs which at the time were more GOP friendly. As people moved further out, as the exurbs got pushed further back, and as attitudes changed, this no longer was a viable dichotomy that made much sense. Instead, the defining divide is now between the well understood 2016 style coalitions. In fact, one could say those coalitions are even more stark here because this is Detroit, the epicenter of the financial crash where it all began. Looking to these districts for guides on....anything is a horrible choice.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 09, 2020, 09:57:56 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.
But you don't have to reach into Oakland for an adequate black district, and the more areas you take from Southern Oakland the more you need to eat into exurban metro Detroit, which is a CoI worth keeping together.
So crossing 8 Mile is still undesirable in most cases.

Even then,  Detroit is in Northeastern Wayne, and southeastern Oakland is more "Metro" and urban than southern Wayne.    There's exurban metro Detroit in western and southern Wayne, and suburban Detroit in Oakland.  

Anyway you put it the county borders don't really mean much in Detroit,  at least in respect to Oakland and Wayne.  

The current MI-11 was probably drawn as a Suburban district surrounding the AA districts (to the benefit of Republicans at the time), which puts all the communities of interests together, and the current MI-9 is pretty close to the Macomb working class district.
County borders aren't perfect but at least ensure relative compactness.  Arms going this way or that in Detroit are really easy to gerrymander with going either way, at least compact sensibly shaped districts limit gerrymandering.  I have seen some really funky Detroit maps here favoring both sides, I think the county based division is the most fair and generally avoids ripping up communities.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 09, 2020, 10:01:48 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.
But you don't have to reach into Oakland for an adequate black district, and the more areas you take from Southern Oakland the more you need to eat into exurban metro Detroit, which is a CoI worth keeping together.
So crossing 8 Mile is still undesirable in most cases.

Even then,  Detroit is in Northeastern Wayne, and southeastern Oakland is more "Metro" and urban than southern Wayne.    There's exurban metro Detroit in western and southern Wayne, and suburban Detroit in Oakland.  

Anyway you put it the county borders don't really mean much in Detroit,  at least in respect to Oakland and Wayne.  

The current MI-11 was probably drawn as a Suburban district surrounding the AA districts, which puts all the communities of interests together, and the current MI-9 is pretty close to the Macomb working class district.

The current MI-09/11 were drawn to to maximize GOP potential in the Metro region. The 9th packs in the near suburbs which at the time were the solid obama parts of the region. The 11th is designed to squiggle around and collect the 'further' suburbs which at the time were more GOP friendly. As people moved further out, as the exurbs got pushed further back, and as attitudes changed, this no longer was a viable dichotomy that made much sense. Instead, the defining divide is now between the well understood 2016 style coalitions. In fact, one could say those coalitions are even more stark here because this is Detroit, the epicenter of the financial crash where it all began. Looking to these districts for guides on....anything is a horrible choice.
I could see a Stevens vs Levin primary happening, since those districts are getting reconfigured big time.  Unless Levin runs in a swing Macomb district, but I think he'll want to stay in Oakland.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 09, 2020, 10:12:43 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.
But you don't have to reach into Oakland for an adequate black district, and the more areas you take from Southern Oakland the more you need to eat into exurban metro Detroit, which is a CoI worth keeping together.
So crossing 8 Mile is still undesirable in most cases.

Even then,  Detroit is in Northeastern Wayne, and southeastern Oakland is more "Metro" and urban than southern Wayne.    There's exurban metro Detroit in western and southern Wayne, and suburban Detroit in Oakland.  

Anyway you put it the county borders don't really mean much in Detroit,  at least in respect to Oakland and Wayne.  

The current MI-11 was probably drawn as a Suburban district surrounding the AA districts, which puts all the communities of interests together, and the current MI-9 is pretty close to the Macomb working class district.

The current MI-09/11 were drawn to to maximize GOP potential in the Metro region. The 9th packs in the near suburbs which at the time were the solid obama parts of the region. The 11th is designed to squiggle around and collect the 'further' suburbs which at the time were more GOP friendly. As people moved further out, as the exurbs got pushed further back, and as attitudes changed, this no longer was a viable dichotomy that made much sense. Instead, the defining divide is now between the well understood 2016 style coalitions. In fact, one could say those coalitions are even more stark here because this is Detroit, the epicenter of the financial crash where it all began. Looking to these districts for guides on....anything is a horrible choice.

Thanks for the history lesson, but that completely misses the point.  

MI-11 was drawn to maximize GOP influence in the district, by incorporating certain groups of people in it, and MI-9 was drawn as a vote sink with other groups of people.  

The districts have changed their voting patterns, but the people are still there generally.  Northwest Wayne has way more in common (today) with parts of southern Oakland than it does with other parts of Wayne, the vice versa is still true today.

Anyway,  I'll drop the point,  doesn't seem anyone here really agrees.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 09, 2020, 10:34:07 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.
But you don't have to reach into Oakland for an adequate black district, and the more areas you take from Southern Oakland the more you need to eat into exurban metro Detroit, which is a CoI worth keeping together.
So crossing 8 Mile is still undesirable in most cases.

Even then,  Detroit is in Northeastern Wayne, and southeastern Oakland is more "Metro" and urban than southern Wayne.    There's exurban metro Detroit in western and southern Wayne, and suburban Detroit in Oakland.  

Anyway you put it the county borders don't really mean much in Detroit,  at least in respect to Oakland and Wayne.  

The current MI-11 was probably drawn as a Suburban district surrounding the AA districts, which puts all the communities of interests together, and the current MI-9 is pretty close to the Macomb working class district.

The current MI-09/11 were drawn to to maximize GOP potential in the Metro region. The 9th packs in the near suburbs which at the time were the solid obama parts of the region. The 11th is designed to squiggle around and collect the 'further' suburbs which at the time were more GOP friendly. As people moved further out, as the exurbs got pushed further back, and as attitudes changed, this no longer was a viable dichotomy that made much sense. Instead, the defining divide is now between the well understood 2016 style coalitions. In fact, one could say those coalitions are even more stark here because this is Detroit, the epicenter of the financial crash where it all began. Looking to these districts for guides on....anything is a horrible choice.

Thanks for the history lesson, but that completely misses the point.  

MI-11 was drawn to maximize GOP influence in the district, by incorporating certain groups of people in it, and MI-9 was drawn as a vote sink with other groups of people.  

The districts have changed their voting patterns, but the people are still there generally.  Northwest Wayne has way more in common (today) with parts of southern Oakland than it does with other parts of Wayne, the vice versa is still true today.

Anyway,  I'll drop the point,  doesn't seem anyone here really agrees.

Well, I agree with you on the  topic of wayne parts vs other wayne  parts, I just think the pop and the commission rules favor the later. It also allows the west suburbs to go potentially with Ann Arbor and Washtenaw, which they also share common traits with. Or they could go with other wayne towns like Dearborn and bits of detroit part of a Arab access seat.

While we are  on this topic though, I'm surprised there are not many maps that try to get a non-detroit seat purely in Wayne, something like what occurs below. I guess it's because the numbers are less favorable this cycle when compared to the last when it comes to wayne vs the suburbs. Such a seat would have cascading effects like requiring both minority seats to head north and then push the suburban seats even further north. Livingston couldn't be paired fully with Oakland. Maybe I will play around with it since it will Allow Livonia & Co. to be paired with the near side of Oakland, even though it would be in a AA seat.

()


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on February 09, 2020, 11:02:53 PM
I would think Romulus and Inkster should be in the AA districts to get their numbers up. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 10, 2020, 02:06:41 AM
I would think Romulus and Inkster should be in the AA districts to get their numbers up. 
They likely will be, that's what my map did.  With population decline in Detroit it's possible the black district will need Pontiac too, I'm not sure though.  But with 2010 demographics it isn't necessary.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 10, 2020, 04:11:12 AM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.

Most of Detroit itself is suburban sprawl, there's extremely little true "Metro" in the sense of what you see in Los Angeles or New York in Detroit.

If you compare the 2010 precincts on DRA with the 2016 ones, it looks like that doesn't really apply to Macomb-Wayne any more. Eastpointe is on the path to becoming black-plurality and the bottom few rows of precincts in Warren have pretty high black populations these days. There's still a divide between 90% black precincts and 40% black ones, but on the west side of Macomb it doesn't become super-white until 9 Mile or 10 Mile Road.

I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.
But you don't have to reach into Oakland for an adequate black district, and the more areas you take from Southern Oakland the more you need to eat into exurban metro Detroit, which is a CoI worth keeping together.
So crossing 8 Mile is still undesirable in most cases.

Has anybody successfully made 2 VRA districts solely in Wayne in this thread? It was certainly doable in 2010, I'm not convinced it is any longer.

I'm also not convinced it would be that controversial on a partisan level. You have to put a lot of SE Oakland into a Detroit district before a district entirely in Oakland starts looking competitive.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 10, 2020, 10:08:21 AM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.
But you don't have to reach into Oakland for an adequate black district, and the more areas you take from Southern Oakland the more you need to eat into exurban metro Detroit, which is a CoI worth keeping together.
So crossing 8 Mile is still undesirable in most cases.

Has anybody successfully made 2 VRA districts solely in Wayne in this thread? It was certainly doable in 2010, I'm not convinced it is any longer.

I'm also not convinced it would be that controversial on a partisan level. You have to put a lot of SE Oakland into a Detroit district before a district entirely in Oakland starts looking competitive.

This depends entirely upon how we define AA seats in this context. The 2010 GOP believed in packing said seats to the brim with as many AA voters would be allowed before the map ran became an example of racial packing. In this regard, they all passed 50%. Now, it is still possible to get two seats out of the entire metro above 50% if you use the 2016 data and ALL areas of AA concentration. There is even enough leeway in the 2016 data for it to still work in 2020 after four more years of pop decline.

However, it is unlikely the commission takes this approach since it would require the destruction of almost every other Metro COI in favor of the AA community. Instead, we should perhaps look to CA, where we got Asian access seats like CA39 and two AA access seats in west LA. All three seats have the relevant demographic far below 50%.

So then we should lower our criteria. Is it AA plurality? Can it be lower, to something like AA greater than 40%? Do the other voter groups matter? Is a white republican who will not vote in the AA dominated dem primary equal to one who will? How one defines an AA seat will  decide how much of near Oakland, if any at all, is required to make the seats pass the minimum criteria.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 10, 2020, 04:49:28 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.
But you don't have to reach into Oakland for an adequate black district, and the more areas you take from Southern Oakland the more you need to eat into exurban metro Detroit, which is a CoI worth keeping together.
So crossing 8 Mile is still undesirable in most cases.

Has anybody successfully made 2 VRA districts solely in Wayne in this thread? It was certainly doable in 2010, I'm not convinced it is any longer.

I'm also not convinced it would be that controversial on a partisan level. You have to put a lot of SE Oakland into a Detroit district before a district entirely in Oakland starts looking competitive.

This depends entirely upon how we define AA seats in this context. The 2010 GOP believed in packing said seats to the brim with as many AA voters would be allowed before the map ran became an example of racial packing. In this regard, they all passed 50%. Now, it is still possible to get two seats out of the entire metro above 50% if you use the 2016 data and ALL areas of AA concentration. There is even enough leeway in the 2016 data for it to still work in 2020 after four more years of pop decline.

However, it is unlikely the commission takes this approach since it would require the destruction of almost every other Metro COI in favor of the AA community. Instead, we should perhaps look to CA, where we got Asian access seats like CA39 and two AA access seats in west LA. All three seats have the relevant demographic far below 50%.

So then we should lower our criteria. Is it AA plurality? Can it be lower, to something like AA greater than 40%? Do the other voter groups matter? Is a white republican who will not vote in the AA dominated dem primary equal to one who will? How one defines an AA seat will  decide how much of near Oakland, if any at all, is required to make the seats pass the minimum criteria.
I'd argue it would need to be high 40s, which is possible without weird shaped districts.  In the 2012 election Gary Peters was able to win a primary with a plurality against multiple non white candidates.  Even with a black majority seat there is not a guarantee it will elect the black candidate (Peters likely won due to the Oakland County portion of the district which isn't as black, due to the odd nature of the race it's likely Peters did not win a majority of the black vote).   Due to this fact the vra districts should try to get as close to 50% aa as possible with compact districts.  Since it has been demonstrated a 58% black district in Detroit can "fail" under the right circumstances, a 40% black district would be FAR more likely to not elect a black candidate. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tekken_Guy on February 10, 2020, 11:35:39 PM
Some thoughts on incumbents:

-John Moolenaar and Dan Kildee live not too far from each other. They could potentially be in a district together.
-Elissa Slotkin wil almost certainly have her hometown of Holly be put into a Solidly R district. She’d probably have to run to Lansing to be viable.
-Andy Levin is also in deep trouble. Assuming he gets a district entirely in Macomb County, he’ll be a heavy underdog. His opponent will most likely be the next MI-10 rep.
-All of the major MI-3 candidates are from the Grand Rapids area which means it’s clear what district they’ll be running in in 2022.
-Fred Upton will almost certainly retire in 2022 if he doesn’t do so this year.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 10, 2020, 11:53:11 PM
I don't really see the point of Oakland getting it's own district.   It seems...meaningless.  Oakland is huge and very diverse,  both with income and demographics.    It's as though it's making a district simply to follow county lines and literally nothing else.  

It makes the most sense to have southern Oakland cross into either Wayne or Washtenaw,  depending on what communities you want to put together.  

I could understand a Macomb-exclusive district though.   That makes way more sense since it's much more White Working Class and generally is it's own community.
An all-Oakland seat is logical especially because 8 Mile Road is better not crossed if one can help it and/or its not absolutely essential to one's plans elsewhere. The main benefit is not necessarily in a homogenous CoI but better districts elsewhere. There is much reason and much elegance in two exurban districts wrapping around the more urban metro Detroit districts.

The 8 mile rd thing is more for the Macomb-Wayne border than Oakland,  since it's what separates Black Detroit from White Macomb (the difference really is pretty stark).   In Oakland you have Oak Park and Southfield areas to the north of Detroit which are both pretty black, and the difference between the two is minimal further west.
But you don't have to reach into Oakland for an adequate black district, and the more areas you take from Southern Oakland the more you need to eat into exurban metro Detroit, which is a CoI worth keeping together.
So crossing 8 Mile is still undesirable in most cases.

Even then,  Detroit is in Northeastern Wayne, and southeastern Oakland is more "Metro" and urban than southern Wayne.    There's exurban metro Detroit in western and southern Wayne, and suburban Detroit in Oakland.  

Anyway you put it the county borders don't really mean much in Detroit,  at least in respect to Oakland and Wayne.  

The current MI-11 was probably drawn as a Suburban district surrounding the AA districts, which puts all the communities of interests together, and the current MI-9 is pretty close to the Macomb working class district.

The current MI-09/11 were drawn to to maximize GOP potential in the Metro region. The 9th packs in the near suburbs which at the time were the solid obama parts of the region. The 11th is designed to squiggle around and collect the 'further' suburbs which at the time were more GOP friendly. As people moved further out, as the exurbs got pushed further back, and as attitudes changed, this no longer was a viable dichotomy that made much sense. Instead, the defining divide is now between the well understood 2016 style coalitions. In fact, one could say those coalitions are even more stark here because this is Detroit, the epicenter of the financial crash where it all began. Looking to these districts for guides on....anything is a horrible choice.

Thanks for the history lesson, but that completely misses the point.  

MI-11 was drawn to maximize GOP influence in the district, by incorporating certain groups of people in it, and MI-9 was drawn as a vote sink with other groups of people.  

The districts have changed their voting patterns, but the people are still there generally.  Northwest Wayne has way more in common (today) with parts of southern Oakland than it does with other parts of Wayne, the vice versa is still true today.

Anyway,  I'll drop the point,  doesn't seem anyone here really agrees.

Well, I agree with you on the  topic of wayne parts vs other wayne  parts, I just think the pop and the commission rules favor the later. It also allows the west suburbs to go potentially with Ann Arbor and Washtenaw, which they also share common traits with. Or they could go with other wayne towns like Dearborn and bits of detroit part of a Arab access seat.

While we are  on this topic though, I'm surprised there are not many maps that try to get a non-detroit seat purely in Wayne, something like what occurs below. I guess it's because the numbers are less favorable this cycle when compared to the last when it comes to wayne vs the suburbs. Such a seat would have cascading effects like requiring both minority seats to head north and then push the suburban seats even further north. Livingston couldn't be paired fully with Oakland. Maybe I will play around with it since it will Allow Livonia & Co. to be paired with the near side of Oakland, even though it would be in a AA seat.

()
https://davesredistricting.org/join/f9f2fff2-6ca3-4bd6-a202-511f71a26636
This is my take on this concept. Two black seats forced north into Oakland > rest of Oakland+Macomb CD makes Bay City-Thumb district inevitable > Flint+Saginaw seat formed and whole county district formed in SE MI east of Wayne > Livingston threw in with Lansing metro and Calhoun added for partisan balance reasons and Grand Rapids-Muskegon CD also created for partisan balance reasons > the rest of map draws itself.
(ignore the district numbers - assume they'd be numbered in a continuity-driven matter)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 11, 2020, 02:27:22 AM
https://davesredistricting.org/join/b99a88d3-23fe-4d86-a4e3-8a237a3424da
another map, the aim here was (unsuccessfully) a nice, compact, whole county CD with Washtenaw in it, and for the all-of-southern Wayne district to move south if so necessary. I compromised and then the rest of the map basically fell into place into place. On a sidenote: this makes the Muskegon-Grand Rapids more natural looking on the map, due to Ottawa having to pair with Michiana as opposed to areas north and east of Grand Rapids. Overall the Washtenaw CD becomes more marginal, going down to D+2. The Oakland district's partisanship is barely affected despite its losing its tiny share of Macomb, as Southern Oakland is paired with southern Macomb. The Thumb-Bay City district loses Midland as it is pushed further south, forcing Saginaw to separate from Flint due to the need to avoid Midland, Saginaw, and Bay City all ending up in different districts. Flint's district is forced south into Metro Lansing, and the Lansing CD switches out Battle Creek for Kalamazoo. Saginaw and Midland meanwhile are thrown in with a wide area of rural Michigan.
This map is a bit more D-favorable and an argument could be made it is D-leaning.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 11, 2020, 03:59:29 AM
https://davesredistricting.org/join/b99a88d3-23fe-4d86-a4e3-8a237a3424da
another map, the aim here was (unsuccessfully) a nice, compact, whole county CD with Washtenaw in it, and for the all-of-southern Wayne district to move south if so necessary. I compromised and then the rest of the map basically fell into place into place. On a sidenote: this makes the Muskegon-Grand Rapids more natural looking on the map, due to Ottawa having to pair with Michiana as opposed to areas north and east of Grand Rapids. Overall the Washtenaw CD becomes more marginal, going down to D+2. The Oakland district's partisanship is barely affected despite its losing its tiny share of Macomb, as Southern Oakland is paired with southern Macomb. The Thumb-Bay City district loses Midland as it is pushed further south, forcing Saginaw to separate from Flint due to the need to avoid Midland, Saginaw, and Bay City all ending up in different districts. Flint's district is forced south into Metro Lansing, and the Lansing CD switches out Battle Creek for Kalamazoo. Saginaw and Midland meanwhile are thrown in with a wide area of rural Michigan.
This map is a bit more D-favorable and an argument could be made it is D-leaning.
https://davesredistricting.org/join/945fa102-1e26-4ee0-859a-1fbe56ec6af2 I made this based on your map, but united Ottawa and Kent instead.  The shifts is causes are particularly noticeable in Detroit, including a swing seat nearly all in Wayne, which I didn't know was possible.  I'd say this is more fair, but dems have big potential if they can keep improving in the suburbs since there are 3 suburban swing seats.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 11, 2020, 04:25:25 AM
https://davesredistricting.org/join/b99a88d3-23fe-4d86-a4e3-8a237a3424da
another map, the aim here was (unsuccessfully) a nice, compact, whole county CD with Washtenaw in it, and for the all-of-southern Wayne district to move south if so necessary. I compromised and then the rest of the map basically fell into place into place. On a sidenote: this makes the Muskegon-Grand Rapids more natural looking on the map, due to Ottawa having to pair with Michiana as opposed to areas north and east of Grand Rapids. Overall the Washtenaw CD becomes more marginal, going down to D+2. The Oakland district's partisanship is barely affected despite its losing its tiny share of Macomb, as Southern Oakland is paired with southern Macomb. The Thumb-Bay City district loses Midland as it is pushed further south, forcing Saginaw to separate from Flint due to the need to avoid Midland, Saginaw, and Bay City all ending up in different districts. Flint's district is forced south into Metro Lansing, and the Lansing CD switches out Battle Creek for Kalamazoo. Saginaw and Midland meanwhile are thrown in with a wide area of rural Michigan.
This map is a bit more D-favorable and an argument could be made it is D-leaning.
https://davesredistricting.org/join/945fa102-1e26-4ee0-859a-1fbe56ec6af2 I made this based on your map, but united Ottawa and Kent instead.  The shifts is causes are particularly noticeable in Detroit, including a swing seat nearly all in Wayne, which I didn't know was possible.  I'd say this is more fair, but dems have big potential if they can keep improving in the suburbs since there are 3 suburban swing seats.
Interestingly this only further highlights the rotation involved.
Calhoun and Branch taken from Washtenaw CD forces it to take in the rest of Washtenaw and most of Monroe > southern Wayne CD takes in Livonia and other areas > NW Detroit CD takes in SE Oakland > almost-all-Macomb CD is created > Bay-Thumb CD takes in Saginaw > Midland CD takes in Muskegon > Grand Rapids CD has to take in most of Ottawa County.
I would like to assume that the double splitting of both Jackson and Hillsdale counties was a mistake - that's not something permitted under Michigan law with the sole exception of VRA compliance (something that MI Rs used in 2011).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 11, 2020, 04:46:35 AM
https://davesredistricting.org/join/dc4df638-b30d-48ba-bbf2-4fdc6fd78031
competitive district map.  8/13 districts are competitive ('16 margin 10 points or less for either candidate) with 5 being highly competitive.  Of course if the state continues to trend red like it did last decade this turns into an R gerrymander.  I like how I made a tossup entirely within Wayne and 2 tossups in central MI. 7 Trump 6 Clinton


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 11, 2020, 08:11:08 AM
Two versions of possible maps for the Michigan State Senate, based on 2018 population estimates:

https://davesredistricting.org/join/04f91558-5287-438a-8efe-aa9246cbef8a

https://davesredistricting.org/join/17d7f5ff-be35-4006-95c0-9cf51d2c0e52

They're pretty similar, with the differences limited to the Tri-Cities area where I couldn't quite decide which option was superior. As I'm depending on estimates, I tried to avoid having seats right at the top or bottom of the population deviation range, unless it was unavoidable. Although the 2016 block groups I drew it with don't always respect township boundaries, in actual fact the only municipalities I had to split were Detroit, Dearborn Heights (avoidable if you're willing to use touchpoint-contiguity) and Sterling Heights (I couldn't see a way to avoid it, but it may exist.)

Highlights worth pointing out:

  • On 2020 numbers, Wayne County could just about have 7 districts but in practice it isn't really feasible now and it won't be at all by 2020
  • Wayne and Macomb combined are entitled to almost exactly 10 Senate districts, which is a better fit than you can get with Wayne and any other one county. I acknowledge the problems with crossing 8 Mile Road, but it makes it a lot easier to maintain 5 VRA districts in Detroit.
  • I think the districts I drew in Oakland are rather neat, except for the somewhat ugly pairing of Troy and Pontiac (which I think was just about avoiding splitting municipalities.) Nevertheless, they are pretty decent lines for Democrats and would undoubtedly be controversial, especially if the final census numbers do allow alternate configurations. District 11 is drawn as a black-opportunity district.
  • Livingston and Washtenaw are now two large to share two senate districts, but Washtenaw plus Monroe works perfectly. Yes, this has a definite partisan effect, but I don't see a whole-county alternative. Swapping Ypsilanti for rural Washtenaw would probably make Republicans happy, but would look ugly (though maybe not worse than my district 22?)
  • I don't love my district 19, so if you're looking to avoid a Washtenaw-Monroe combination, hopefully the solution would improve that too.
  • I tried to draw a majority-minority Grand Rapids district, but the numbers aren't there for it.
  • It's not very competitive right now, but back in 2012 district 34 would have been great for Democrats. Incidentally, does anybody know why Lake County was so Democratic up until 2016? It really shows up on a map, but I have no idea what prompts it

In a neutral year, I suspect this would be something along the lines of 22-16 or 21-17 Republican, but a Democratic majority looks like a very hard ask - it would probably entail running the table in the Detroit metro, locking down the Saginaw-Bay district, winning the Muskegon district and somehow getting over the line in either the Jackson district or the UP district.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 11, 2020, 12:05:15 PM
Two versions of possible maps for the Michigan State Senate, based on 2018 population estimates:

https://davesredistricting.org/join/04f91558-5287-438a-8efe-aa9246cbef8a

https://davesredistricting.org/join/17d7f5ff-be35-4006-95c0-9cf51d2c0e52

They're pretty similar, with the differences limited to the Tri-Cities area where I couldn't quite decide which option was superior. As I'm depending on estimates, I tried to avoid having seats right at the top or bottom of the population deviation range, unless it was unavoidable. Although the 2016 block groups I drew it with don't always respect township boundaries, in actual fact the only municipalities I had to split were Detroit, Dearborn Heights (avoidable if you're willing to use touchpoint-contiguity) and Sterling Heights (I couldn't see a way to avoid it, but it may exist.)

Highlights worth pointing out:

  • On 2020 numbers, Wayne County could just about have 7 districts but in practice it isn't really feasible now and it won't be at all by 2020
  • Wayne and Macomb combined are entitled to almost exactly 10 Senate districts, which is a better fit than you can get with Wayne and any other one county. I acknowledge the problems with crossing 8 Mile Road, but it makes it a lot easier to maintain 5 VRA districts in Detroit.
  • I think the districts I drew in Oakland are rather neat, except for the somewhat ugly pairing of Troy and Pontiac (which I think was just about avoiding splitting municipalities.) Nevertheless, they are pretty decent lines for Democrats and would undoubtedly be controversial, especially if the final census numbers do allow alternate configurations. District 11 is drawn as a black-opportunity district.
  • Livingston and Washtenaw are now two large to share two senate districts, but Washtenaw plus Monroe works perfectly. Yes, this has a definite partisan effect, but I don't see a whole-county alternative. Swapping Ypsilanti for rural Washtenaw would probably make Republicans happy, but would look ugly (though maybe not worse than my district 22?)
  • I don't love my district 19, so if you're looking to avoid a Washtenaw-Monroe combination, hopefully the solution would improve that too.
  • I tried to draw a majority-minority Grand Rapids district, but the numbers aren't there for it.
  • It's not very competitive right now, but back in 2012 district 34 would have been great for Democrats. Incidentally, does anybody know why Lake County was so Democratic up until 2016? It really shows up on a map, but I have no idea what prompts it

In a neutral year, I suspect this would be something along the lines of 22-16 or 21-17 Republican, but a Democratic majority looks like a very hard ask - it would probably entail running the table in the Detroit metro, locking down the Saginaw-Bay district, winning the Muskegon district and somehow getting over the line in either the Jackson district or the UP district.

If you're trying to draw a map that doesn't guarantee a GOP majority, you should be able to create a Lean R (and trending D) seat and a Safe R seat (instead of two Safe R seats) out of districts 14 and 15 by concentrating one seat in the suburbs (Novi to the areas west of Pontiac) and the other in the exurbs.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 11, 2020, 02:52:49 PM
Anyway here's the results of my investigation into the Wayne non-AA seat style map. Like the others upthread discovered, this leads to the rotation of districts around that state. Now I didn't intend for it to become a D-Gerry/D-Favoring map at the start. However, once I saw how the Detroit Metro seats (first drawn) basically favored the Democrats to an unfair degree, I kinda made that unfairness part of the map. I do not endorse this plan, and I think it should show why an anchored Wayne  non-AA seat is probably asking the data to provide something that isn't available.

()

()


Districts 11, 12, 13 are Safe D (The Wayne Seat is right there is a D gift)

District 9 is probably Likely D (Clinton+10, D+4 CPVI, Sunk Livingston is growing just like Ann Arbor)

Districts 3 and 10 are marginal Clinton with D+1 CPVI's, but they are both moving towards the Dems

District 5 is marginal Clinton with D+4 CPVI, but it is moving towards the GOP (yep Clinton won a majority of seats...)

District 7 is marginal Trump with a R+1 CPVI, but moving towards the Dems

Districts 1, 2, 4, 6, and 8 are safe GOP, all with CPVI's above R+8 and an average Trump win of 58% - 37% (one seat a bit above that trump win, one seat a bit below that).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 11, 2020, 06:40:18 PM
Anyway here's the results of my investigation into the Wayne non-AA seat style map. Like the others upthread discovered, this leads to the rotation of districts around that state. Now I didn't intend for it to become a D-Gerry/D-Favoring map at the start. However, once I saw how the Detroit Metro seats (first drawn) basically favored the Democrats to an unfair degree, I kinda made that unfairness part of the map. I do not endorse this plan, and I think it should show why an anchored Wayne  non-AA seat is probably asking the data to provide something that isn't available.

An all Wayne non AA seat doesn't have to cause the map to favor dems tho.  Having the Ann Arbor district go into southern Oakland instead of red exurban/rurals could be done. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 11, 2020, 07:32:26 PM
Anyway here's the results of my investigation into the Wayne non-AA seat style map. Like the others upthread discovered, this leads to the rotation of districts around that state. Now I didn't intend for it to become a D-Gerry/D-Favoring map at the start. However, once I saw how the Detroit Metro seats (first drawn) basically favored the Democrats to an unfair degree, I kinda made that unfairness part of the map. I do not endorse this plan, and I think it should show why an anchored Wayne  non-AA seat is probably asking the data to provide something that isn't available.

()

()


Districts 11, 12, 13 are Safe D (The Wayne Seat is right there is a D gift)

District 9 is probably Likely D (Clinton+10, D+4 CPVI, Sunk Livingston is growing just like Ann Arbor)

Districts 3 and 10 are marginal Clinton with D+1 CPVI's, but they are both moving towards the Dems

District 5 is marginal Clinton with D+4 CPVI, but it is moving towards the GOP (yep Clinton won a majority of seats...)

District 7 is marginal Trump with a R+1 CPVI, but moving towards the Dems

Districts 1, 2, 4, 6, and 8 are safe GOP, all with CPVI's above R+8 and an average Trump win of 58% - 37% (one seat a bit above that trump win, one seat a bit below that).
how do you put photos directly in?  When I put them in it on ImgBB just becomes a link


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: OBD on February 11, 2020, 08:42:14 PM
how do you put photos directly in?  When I put them in it on ImgBB just becomes a link
Have you tried this?
- right-click on image
- hit the 'open image in new tab' button
- there'll be a new link, use that


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 11, 2020, 09:25:17 PM
how do you put photos directly in?  When I put them in it on ImgBB just becomes a link
Have you tried this?
- right-click on image
- hit the 'open image in new tab' button
- there'll be a new link, use that
THANKS


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 11, 2020, 09:34:04 PM
()
()
()
This proves a non AA Wayne seat doesn't have to necessarily help Dems.  Besides there's an argument Ann Arbor does better paired with educated parts of Oakland rather than western Wayne.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 12, 2020, 06:22:47 AM
()
https://davesredistricting.org/join/ee18ca89-11d7-4635-9684-3dfb273592b1 (https://davesredistricting.org/join/ee18ca89-11d7-4635-9684-3dfb273592b1)
1 - R+11
2 - R+12
3 - D+5
4 - D+6
5 - R+15
6 - D+6
7 - D+5
8 - R+14
9 - D+6
10 - D+6
11 - D+6
12 - D+14 (47% Black)
13 - D+11 (47% Black)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 12, 2020, 11:42:55 AM
Michigan's House of Representatives map is much less gerrymandered than its congressional or State Senate maps, because at this scale minimising splits of counties and municipalities means there's much less room to put a thumb on the scales. There are areas where it's clearly drawn to favour Republicans, but equally there are plenty of areas where you can more or less maintain the present alignments, once you've accounted for population shifts.

Once again, I worked with 2018 population estimates and tried to make sure that as much as possible seats were not right at the upper or lower limits of the allowable range. I tried to keep similar areas together, which probably promotes more safe seats, and I tried to draw as many seats winnable by minority candidates as possible, which definitely promotes safe seats. However, there are still a fair few marginals and I think it's clear that the House is a much easier target for Michigan Democrats than the State Senate.

In a few places (primarily Macomb, Grand Rapids, Lansing and Jackson) there looked to be two viable solutions, so I drew two maps. This is the first:

https://davesredistricting.org/join/90a2f6be-8fcf-4293-9b92-1a6b6a9c3d4b

  • This map has 10 black majority districts (8 in Detroit, one in Southfield, one in Flint); 1 Hispanic plurality district in Detroit (although that's probably more likely to elect a black candidate as it stands); a black-plurality district based on Pontiac; a majority-minority district in Grand Rapids; two districts where the Democratic primary is probably plurality-black (the Inkster-Romulus district and the Saginaw City district) and several other districts where the white percentage is below 60% and which might be viable coalition districts either now or by 2030. Except for the Inkster-Romulus district, these are all pretty clean. Sadly, the latest update to DRA seems to have screwed up the display of electorate data and is now only showing white and Hispanic populations, so you may just have to take me at my word.
  • Wayne and Monroe combine for 21 districts, which is one fewer than they presently have. It's mathematically possible to give Wayne 19 large districts on its own, but then Monroe lacks a convenient partner and there's nothing terribly wrong with a cross-county district there so I left it be.
  • In Macomb, I went for a least-change plan as much as possible. Warren and Clinton need to be chopped due to size and there's an extra chop in Sterling Heights. Macomb Township is now large enough for its own district.
  • In Oakland, you can mostly leave things be in the south-east. I tried to create a black-opportunity district based on Oak Park, but the numbers aren't quite there. Rochester Hills is now large enough for its own district, but Troy and Clawson are too large so Troy gets a chop. The county could theoretically stand alone for 14 seats, but Livingston is too large for two so I stuck in a cross-county seat.
  • In St. Clair, I undid the current gerrymander to create one rural district shared with Sanilac and one district focused on the St. Clair river towns. This might have been a swing district in 2008, but isn't now.
  • At the moment, Jackson County is sliced and diced to try to dilute the votes of Jackson itself. This map undoes that and creates a swing seat. Similarly, I've simplified the lines in Calhoun County. On the flipside, Shiawassee County gets carved in two.
  • Kent County is cracked quite hard at the moment. I've undone and given it seven seats of its own, which ought to usually split 4-3 Republican, with the Wyoming district possibly on the path to becoming competitive.
  • I tried a lot of options, but I don't think there are any plausible solutions in the UP that let you keep Marquette whole. That makes it even harder for Democrats to hold down a seat there than it already is.

Overall, Clinton won 42 districts to Trump's 68, but several of Trump's victories were extremely narrow and in several more Democrats tend to overperform downballot, so it would be competitive in good Democratic years.

I will post the second map either later tonight or tomorrow.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 12, 2020, 03:14:24 PM
Michigan's House of Representatives map is much less gerrymandered than its congressional or State Senate maps, because at this scale minimising splits of counties and municipalities means there's much less room to put a thumb on the scales. There are areas where it's clearly drawn to favour Republicans, but equally there are plenty of areas where you can more or less maintain the present alignments, once you've accounted for population shifts.

Once again, I worked with 2018 population estimates and tried to make sure that as much as possible seats were not right at the upper or lower limits of the allowable range. I tried to keep similar areas together, which probably promotes more safe seats, and I tried to draw as many seats winnable by minority candidates as possible, which definitely promotes safe seats. However, there are still a fair few marginals and I think it's clear that the House is a much easier target for Michigan Democrats than the State Senate.

In a few places (primarily Macomb, Grand Rapids, Lansing and Jackson) there looked to be two viable solutions, so I drew two maps. This is the first:

https://davesredistricting.org/join/90a2f6be-8fcf-4293-9b92-1a6b6a9c3d4b

  • This map has 10 black majority districts (8 in Detroit, one in Southfield, one in Flint); 1 Hispanic plurality district in Detroit (although that's probably more likely to elect a black candidate as it stands); a black-plurality district based on Pontiac; a majority-minority district in Grand Rapids; two districts where the Democratic primary is probably plurality-black (the Inkster-Romulus district and the Saginaw City district) and several other districts where the white percentage is below 60% and which might be viable coalition districts either now or by 2030. Except for the Inkster-Romulus district, these are all pretty clean. Sadly, the latest update to DRA seems to have screwed up the display of electorate data and is now only showing white and Hispanic populations, so you may just have to take me at my word.
  • Wayne and Monroe combine for 21 districts, which is one fewer than they presently have. It's mathematically possible to give Wayne 19 large districts on its own, but then Monroe lacks a convenient partner and there's nothing terribly wrong with a cross-county district there so I left it be.
  • In Macomb, I went for a least-change plan as much as possible. Warren and Clinton need to be chopped due to size and there's an extra chop in Sterling Heights. Macomb Township is now large enough for its own district.
  • In Oakland, you can mostly leave things be in the south-east. I tried to create a black-opportunity district based on Oak Park, but the numbers aren't quite there. Rochester Hills is now large enough for its own district, but Troy and Clawson are too large so Troy gets a chop. The county could theoretically stand alone for 14 seats, but Livingston is too large for two so I stuck in a cross-county seat.
  • In St. Clair, I undid the current gerrymander to create one rural district shared with Sanilac and one district focused on the St. Clair river towns. This might have been a swing district in 2008, but isn't now.
  • At the moment, Jackson County is sliced and diced to try to dilute the votes of Jackson itself. This map undoes that and creates a swing seat. Similarly, I've simplified the lines in Calhoun County. On the flipside, Shiawassee County gets carved in two.
  • Kent County is cracked quite hard at the moment. I've undone and given it seven seats of its own, which ought to usually split 4-3 Republican, with the Wyoming district possibly on the path to becoming competitive.
  • I tried a lot of options, but I don't think there are any plausible solutions in the UP that let you keep Marquette whole. That makes it even harder for Democrats to hold down a seat there than it already is.

Overall, Clinton won 42 districts to Trump's 68, but several of Trump's victories were extremely narrow and in several more Democrats tend to overperform downballot, so it would be competitive in good Democratic years.

I will post the second map either later tonight or tomorrow.
Wow, interesting how a fair house map favors Rs so much.  Rs should be thankful for the rules which limited them last time.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on February 12, 2020, 03:54:33 PM
() (https://imgbb.com/)
https://davesredistricting.org/join/1a8fff1c-a5dc-4bf1-82aa-cd22367f05c1
my take on a "Washtenaw paired with Southern Oakland" arrangement paired with a Wayne non-AA seat. I tried to make it balanced but Rs still have a verrry slight advantage on this map.
Two black seats were possible even when only one of them crossed into southern Oakland AND Macomb has a CD to itself starting north from 8 Mile Road.
Clinton won the Washtenaw-southern Oakland seat by 24 points in 2016.
Dem-leaning seat can be created from northern Oakland and Genesee, but it's not safe.
Multiple whole county CDs can be formed.
Even with the inclusion of Saginaw, the Bay-Thumb district is very hard for Dems, measuring up to be R+9.
Only 4 Clinton districts. Ouch. The Washtenaw-southern Oakland seat reallly hurts here.
Tipping point seats are Lansing (R+1.71) and Macomb (R+1.93). Lansing is most likely to be marginal here due to Livingston having to end up somewhere. Lansing is the most natural place for it to go.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 12, 2020, 04:30:20 PM
()
9-4 map with Trump winning all 9 by at least 10.  Amazing how it doesn't take an egregious map.  I can get a better map out of MI than TX and it looks better.  TX is 8-9 pts to the right of MI.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 13, 2020, 05:34:06 AM
This is the second map I drew: https://davesredistricting.org/join/a2f88c52-cda9-4396-bc78-2c16f33c5600

Changes from the first map:

  • The Inkster district (16) is significantly more compact and there are two fewer municipality cuts as a result. This drops the black percentage from 40% to 33%. However, that's still probably an improvement from what it is at present and it's represented by a black candidate, so it's probably functioning. The partisan ramifications are pretty limited.
  • There's a totally different arrangement in Macomb County. Whereas in the first map I left the 18th district unchanged as a combination of Eastpointe and St. Clair Shores, in this one I combined Eastpointe with southern Warren in an attempt to create a black opportunity district. It's only 34% black at the moment, but diversifying fast and probably already black-majority in the primary.
  • The knock-on consequences mean more compact lines in northern Macomb and one less split to Sterling Heights, but Shelby township gets cut and there's also a small nick in to Clinton Township (although that may be avoidable, depending on population shifts.) I probably prefer this option, but it is more disruptive.
  • Rather than pairing Eaton and Clinton for two districts, I stuck Eaton in with Shiawassee and Genesee and Clinton in with the Lansing group. This flips district 71 and arguably better respects community identities round Lansing, but it's uglier in Jackson.
  • There's a slight re-jig in Kent in an attempt to create a purely suburban district wrapping round Grand Rapids to the north and east. Only partially successful, I think it's fair to say.
  • Slightly re-jigged lines in Ottawa, switching from a East/South/West orientation to an East/South-West/North-West one. Also minor tweaks to Muskegon, no great partisan effect in either case.
  • A slight re-jig to the lines in Saginaw, making district 95 slightly more effective as a black opportunity district.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Water Hazard on February 13, 2020, 01:42:34 PM
()

Here's a Detroit metro arrangement I like. Two districts over 50% AA and each of Wayne, Oakland, and Macomb gets its own non-VRA district. Of course, it'd result in an Ann Arbor/Rural pairing and no Flint to Saginaw Bay district like the current CD 5.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 14, 2020, 04:21:32 AM
What does the rest of the map look like? Presumably the numbers would work for putting Livingston in with Washtenaw, which is a better fit than more rural counties.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 14, 2020, 05:16:59 PM
()

Here's a Detroit metro arrangement I like. Two districts over 50% AA and each of Wayne, Oakland, and Macomb gets its own non-VRA district. Of course, it'd result in an Ann Arbor/Rural pairing and no Flint to Saginaw Bay district like the current CD 5.
looks good


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 14, 2020, 07:12:50 PM
()
I made a map based on yours.  Not ideal for either party but favors Rs a bit.  Livingston county is challenging, pairing it with Flint or Lansing is definitely unfavorable to Dems.  I'd say pairing Livingston with exurban Oakland is the most sensible (and fair) way to draw the map, but then you might not get a 100% Oakland district.   


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on February 14, 2020, 09:16:12 PM

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My latest version, which solves the Livingston problem by pairing with Washtenaw and Oakland in a coherent D+1.66 district that is quickly trending more D.  Oakland, Macomb and Wayne each have a district entirely within them.  The-Oakland only district is D+0.76 but Clinton won by 5.  The white parts of Wayne are reasonably paired with Monroe; it's basically a tossup district (DRA says R+0.61).  Flint/Saginaw and Lansing/Isabella districts are D+3 and D+0.15 but Trump very narrowly won both. 



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 15, 2020, 04:26:52 AM

()

My latest version, which solves the Livingston problem by pairing with Washtenaw and Oakland in a coherent D+1.66 district that is quickly trending more D.  Oakland, Macomb and Wayne each have a district entirely within them.  The-Oakland only district is D+0.76 but Clinton won by 5.  The white parts of Wayne are reasonably paired with Monroe; it's basically a tossup district (DRA says R+0.61).  Flint/Saginaw and Lansing/Isabella districts are D+3 and D+0.15 but Trump very narrowly won both. 


I'd say good map but Rs will hate all those suburban swing seats and Dems will be sweating since  Clinton won only 4 seats!  Of course it is a citizen's commission.  If they prioritize competitiveness we could see something like this.  But I predict they'll focus more on keeping boundaries unbroken and COIs.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 15, 2020, 07:10:18 AM
My latest version, which solves the Livingston problem by pairing with Washtenaw and Oakland in a coherent D+1.66 district that is quickly trending more D.  Oakland, Macomb and Wayne each have a district entirely within them.  The-Oakland only district is D+0.76 but Clinton won by 5.  The white parts of Wayne are reasonably paired with Monroe; it's basically a tossup district (DRA says R+0.61).  Flint/Saginaw and Lansing/Isabella districts are D+3 and D+0.15 but Trump very narrowly won both.  
I'd say good map but Rs will hate all those suburban swing seats and Dems will be sweating since  Clinton won only 4 seats!  Of course it is a citizen's commission.  If they prioritize competitiveness we could see something like this.  But I predict they'll focus more on keeping boundaries unbroken and COIs.
Well given the political parties have literally no input into the commission it doesn't really matter what they think. It'll be whatever 13 random citizens with no political links who are probably lawyers think best fits the criteria they follow.
And it should be noted that respecting COIs is completely different from keeping Counties intact. And the commission is bound by law to prioritise respecting COIs and competitive elections over county and municipality integrity.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 15, 2020, 08:36:41 AM
My latest version, which solves the Livingston problem by pairing with Washtenaw and Oakland in a coherent D+1.66 district that is quickly trending more D.  Oakland, Macomb and Wayne each have a district entirely within them.  The-Oakland only district is D+0.76 but Clinton won by 5.  The white parts of Wayne are reasonably paired with Monroe; it's basically a tossup district (DRA says R+0.61).  Flint/Saginaw and Lansing/Isabella districts are D+3 and D+0.15 but Trump very narrowly won both.  
I'd say good map but Rs will hate all those suburban swing seats and Dems will be sweating since  Clinton won only 4 seats!  Of course it is a citizen's commission.  If they prioritize competitiveness we could see something like this.  But I predict they'll focus more on keeping boundaries unbroken and COIs.
Well given the political parties have literally no input into the commission it doesn't really matter what they think. It'll be whatever 13 random citizens with no political links who are probably lawyers think best fits the criteria they follow.
And it should be noted that respecting COIs is completely different from keeping Counties intact. And the commission is bound by law to prioritise respecting COIs and competitive elections over county and municipality integrity.

But in the absence of other COIs, a county works just fine. In the past, true commissions were limited to the west, where huge, unnatural, counties are destined to be cut. Michigan on the other hand has more rational county breakdowns. At the congressional level with only 13 seats, it's very likely COI discussions will focus on which counties should be paired with which other counties (Saginaw+Flint for instance) - except in several obvious situations usually within one of the metro areas. On lower level maps these cross-county COIs will be more imperative.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 15, 2020, 09:05:15 AM
This will probably be my final take on it -

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https://davesredistricting.org/join/86c3575b-47c5-455b-bdef-ba4557967108

6 Clinton seats, 7 Trump seats.   Seat in Macomb and Oakland, 2 AA seats.  Keeps most communities together.   Overall a good fit.

MI-5 (Flint/Saginaw) won by Clinton but trending R.

MI-3 (Grand Rapids) won by Trump but trending D.

I'd expect those two to flip by 2022 or maybe 2024.

The Oakland district was barely won by Clinton but it's trending D too.

Other than that the rest are pretty much all safe for either party.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on February 15, 2020, 10:24:48 AM
Oakland to Newaygo and Wayne to St. Joseph just aren't good districts. 

I particularly like my latest map because the district shapes are incredibly compact -- 3 of them are basically perfect rectangles, and the Flint, Washtenaw and Lansing districts are really good shapes as well (in addition to being decent COIs).  I might swap Newaygo for Barry in the Grand Rapids district; that's the only real annoyance I have. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 15, 2020, 10:33:09 AM
Oakland to Newaygo and Wayne to St. Joseph just aren't good districts. 

I particularly like my latest map because the district shapes are incredibly compact -- 3 of them are basically perfect rectangles, and the Flint, Washtenaw and Lansing districts are really good shapes as well (in addition to being decent COIs).  I might swap Newaygo for Barry in the Grand Rapids district; that's the only real annoyance I have. 

The Oakland to Newaygo district is actually a really good collection of all the Metro's Exurban areas around them, from Grand Rapids to Detroit.   They actually do have a lot in common.   It isn't compact sure, but if CoI > Compactness then it's a very solid district.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Water Hazard on February 15, 2020, 10:39:18 AM
What does the rest of the map look like? Presumably the numbers would work for putting Livingston in with Washtenaw, which is a better fit than more rural counties.
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There's a lot of ways you could draw the state outside of the metro; here I wanted to get the whole Lansing area in one district. You could swap territory between 7 and 8 and get a Livingston/Washtenaw/Monroe district that doesn't look too bad. Not great from a COI standpoint either IMO but it's a hard area to deal with.

I do agree with Idaho Conservative that the best fit for Livingston is probably pairing it with exurban Oakland, but that requires a different arrangement for most of the metro. I've also been playing with Washtenaw/Ingham, though that does sort of tilt the rest of the map in Republicans' favor.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 15, 2020, 02:53:54 PM
What does the rest of the map look like? Presumably the numbers would work for putting Livingston in with Washtenaw, which is a better fit than more rural counties.
()
There's a lot of ways you could draw the state outside of the metro; here I wanted to get the whole Lansing area in one district. You could swap territory between 7 and 8 and get a Livingston/Washtenaw/Monroe district that doesn't look too bad. Not great from a COI standpoint either IMO but it's a hard area to deal with.

I do agree with Idaho Conservative that the best fit for Livingston is probably pairing it with exurban Oakland, but that requires a different arrangement for most of the metro. I've also been playing with Washtenaw/Ingham, though that does sort of tilt the rest of the map in Republicans' favor.
While Livingston being paired with Lansing isn't ideal, your map is better than most I've seen here due to compact.  The three counties which make up Lansing are a COI and that's good they were kept together.  I would also say Washtenaw is a better match for Wayne but again, I get that changes stuff elsewhere.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Boobs on February 15, 2020, 04:00:14 PM
()
Competitive map, I guess;

12 is 50.3% black, 13 is 49.8% black. Both, along with 7 (Clinton +8.1) and 8 (Clinton +13.3%) are Safe D.

9 is Clinton +7.2, so safe for now, but will probably shift closer through the decade. Likely D.

10 is Clinton +1. Tossup/Lean D.

3 is Trump +4.4 and 6 is Trump +6. Lean R. 6 was probably won by Whitmer; 3 definitely.

The rest (1,2,4,5,11) are safe R, with the closest being 11 at Trump +19.

Seems like it would be 7R, 6D but with the realistic chances of going 8R-5D or 8D-5R.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 15, 2020, 04:20:24 PM
I just drew a new version of a MI map, and I'm extremely satisfied with it. The goal was to keep very close to the rule of minimizing county and municipal splits while keeping COIs together, and I think this map does an excellent job of both while also coming out with a very fair partisan balance of 6-6-1. It also has two seats that are majority or nearly majority black (and you could fiddle around with the edges to get them both to majority black, such as by switching Hamtramck). The UP-Traverse City district has no county splits at all (!!!), and the Lansing and Flint-Saginaw districts share a de minimis county split but have no splits with any other districts. The Detroit metro has two majority/near-majority black Detroit+ districts, one district entirely in Wayne, one district entirely in Oakland, one district covering the exurban parts of Oakland and Macomb and one district containing the western/southern exurbs+Ann Arbor, which I think is the best possible COI arrangement in the Detroit area. The three counties of the Lansing metro are also kept together without combining them with any other major metro (no combination with Flint, Saginaw, Livingston County, Kalamazoo, etc.)

Without further ado, the map:

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()

MI-01 (Upper Peninsula, Traverse City): 37-59 Trump, Safe R
MI-02 (Holland, Muskegon): 37-57 Trump, Safe R
MI-03 (Grand Rapids): 41-52 Trump, Likely R
MI-04 (Bay City, Port Huron): 32-63 Trump, Safe R
MI-05 (Kalamazoo, Benton Harbor): 42-52 Trump, Likely R
MI-06 (Lansing, Battle Creek, Jackson): 48-46 Clinton, Lean D
MI-07 (Flint, Saginaw, Midland): 48-47 Clinton, Toss-up
MI-08 (Ann Arbor, Monroe, Howell): 50-45 Clinton, Likely D
MI-09 (Pontiac, Royal Oak, Novi): 53-42 Clinton, Safe D
MI-10 (Oxford, Sterling Heights, New Baltimore): 36-59 Trump, Safe R
MI-11 (Dearborn, Livonia, Romulus): 51-44 Clinton, Likely D
MI-12 (Detroit West, Southfield, Inkster): 78-19 Clinton, Safe D (51% black)
MI-13 (Detroit East, Warren, Mount Clemens): 69-28 Clinton, Safe D (49% black)

Total: 6R (4 Safe, 2 Likely), 6D (3 Safe, 2 Likely, 1 Lean), 1 Toss-up

https://davesredistricting.org/join/28069751-857c-44d0-8e44-8abde1dc2f25

Edit: I realized I had an unintentional extra municipal split in Macomb County. I've fixed that on the DRA version, and it actually increased the black percentage in MI-13 just a hair (nearly to the point of rounding up to 50%!).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 15, 2020, 06:13:41 PM
()
Optimal map for metro Detroit
Yellow: Clinton+56  (45% black VRA seat)
Blue: Clinton+42   (47% black VRA seat)
Red: Clinton+26
Pink: Clinton+13
Green: Trump+20
Purple: Trump+16

Districts are compact, follow VRA, communities of interest are largely kept together.  Also a 4D-2R breakdown is fair for the metro with 2 districts having potential to be competitive in a wave election (purple and pink).



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 16, 2020, 12:40:11 AM
Should the tri-cities area be considered a COI?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 16, 2020, 07:34:59 AM
I just drew a new version of a MI map, and I'm extremely satisfied with it. The goal was to keep very close to the rule of minimizing county and municipal splits while keeping COIs together, and I think this map does an excellent job of both while also coming out with a very fair partisan balance of 6-6-1. It also has two seats that are majority or nearly majority black (and you could fiddle around with the edges to get them both to majority black, such as by switching Hamtramck). The UP-Traverse City district has no county splits at all (!!!), and the Lansing and Flint-Saginaw districts share a de minimis county split but have no splits with any other districts. The Detroit metro has two majority/near-majority black Detroit+ districts, one district entirely in Wayne, one district entirely in Oakland, one district covering the exurban parts of Oakland and Macomb and one district containing the western/southern exurbs+Ann Arbor, which I think is the best possible COI arrangement in the Detroit area. The three counties of the Lansing metro are also kept together without combining them with any other major metro (no combination with Flint, Saginaw, Livingston County, Kalamazoo, etc.)

Without further ado, the map:

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MI-01 (Upper Peninsula, Traverse City): 37-59 Trump, Safe R
MI-02 (Holland, Muskegon): 37-57 Trump, Safe R
MI-03 (Grand Rapids): 41-52 Trump, Likely R
MI-04 (Bay City, Port Huron): 32-63 Trump, Safe R
MI-05 (Kalamazoo, Benton Harbor): 42-52 Trump, Likely R
MI-06 (Lansing, Battle Creek, Jackson): 48-46 Clinton, Lean D
MI-07 (Flint, Saginaw, Midland): 48-47 Clinton, Toss-up
MI-08 (Ann Arbor, Monroe, Howell): 50-45 Clinton, Likely D
MI-09 (Pontiac, Royal Oak, Novi): 53-42 Clinton, Safe D
MI-10 (Oxford, Sterling Heights, New Baltimore): 36-59 Trump, Safe R
MI-11 (Dearborn, Livonia, Romulus): 51-44 Clinton, Likely D
MI-12 (Detroit West, Southfield, Inkster): 78-19 Clinton, Safe D (51% black)
MI-13 (Detroit East, Warren, Mount Clemens): 69-28 Clinton, Safe D (49% black)

Total: 6R (4 Safe, 2 Likely), 6D (3 Safe, 2 Likely, 1 Lean), 1 Toss-up

https://davesredistricting.org/join/28069751-857c-44d0-8e44-8abde1dc2f25

Edit: I realized I had an unintentional extra municipal split in Macomb County. I've fixed that on the DRA version, and it actually increased the black percentage in MI-13 just a hair (nearly to the point of rounding up to 50%!).


I think that's probably the best effort I've seen yet in this thread.

I particularly like that MI-2 - it's very hard to make a doughnut seat that doesn't look incredibly awkward, but you pulled it off and it's a good Grand Rapids exurbs seat.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 16, 2020, 08:29:46 AM
I just drew a new version of a MI map, and I'm extremely satisfied with it. The goal was to keep very close to the rule of minimizing county and municipal splits while keeping COIs together, and I think this map does an excellent job of both while also coming out with a very fair partisan balance of 6-6-1. It also has two seats that are majority or nearly majority black (and you could fiddle around with the edges to get them both to majority black, such as by switching Hamtramck). The UP-Traverse City district has no county splits at all (!!!), and the Lansing and Flint-Saginaw districts share a de minimis county split but have no splits with any other districts. The Detroit metro has two majority/near-majority black Detroit+ districts, one district entirely in Wayne, one district entirely in Oakland, one district covering the exurban parts of Oakland and Macomb and one district containing the western/southern exurbs+Ann Arbor, which I think is the best possible COI arrangement in the Detroit area. The three counties of the Lansing metro are also kept together without combining them with any other major metro (no combination with Flint, Saginaw, Livingston County, Kalamazoo, etc.)

Without further ado, the map:

()
()

MI-01 (Upper Peninsula, Traverse City): 37-59 Trump, Safe R
MI-02 (Holland, Muskegon): 37-57 Trump, Safe R
MI-03 (Grand Rapids): 41-52 Trump, Likely R
MI-04 (Bay City, Port Huron): 32-63 Trump, Safe R
MI-05 (Kalamazoo, Benton Harbor): 42-52 Trump, Likely R
MI-06 (Lansing, Battle Creek, Jackson): 48-46 Clinton, Lean D
MI-07 (Flint, Saginaw, Midland): 48-47 Clinton, Toss-up
MI-08 (Ann Arbor, Monroe, Howell): 50-45 Clinton, Likely D
MI-09 (Pontiac, Royal Oak, Novi): 53-42 Clinton, Safe D
MI-10 (Oxford, Sterling Heights, New Baltimore): 36-59 Trump, Safe R
MI-11 (Dearborn, Livonia, Romulus): 51-44 Clinton, Likely D
MI-12 (Detroit West, Southfield, Inkster): 78-19 Clinton, Safe D (51% black)
MI-13 (Detroit East, Warren, Mount Clemens): 69-28 Clinton, Safe D (49% black)

Total: 6R (4 Safe, 2 Likely), 6D (3 Safe, 2 Likely, 1 Lean), 1 Toss-up

https://davesredistricting.org/join/28069751-857c-44d0-8e44-8abde1dc2f25

Edit: I realized I had an unintentional extra municipal split in Macomb County. I've fixed that on the DRA version, and it actually increased the black percentage in MI-13 just a hair (nearly to the point of rounding up to 50%!).


I think that's probably the best effort I've seen yet in this thread.

I particularly like that MI-2 - it's very hard to make a doughnut seat that doesn't look incredibly awkward, but you pulled it off and it's a good Grand Rapids exurbs seat.

Thanks! I will say it's definitely not necessary to draw the Grand Rapids area that way, though I personally think this is the best COI version because it keeps the Grand Rapids urban+suburban areas together with also keeping rural/small city western Michigan together. I often like donut maps because they allow you to keep a clear separation of urban/suburban areas from rural areas, which have very different interests.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 16, 2020, 09:09:56 AM
I just drew a new version of a MI map, and I'm extremely satisfied with it. The goal was to keep very close to the rule of minimizing county and municipal splits while keeping COIs together, and I think this map does an excellent job of both while also coming out with a very fair partisan balance of 6-6-1. It also has two seats that are majority or nearly majority black (and you could fiddle around with the edges to get them both to majority black, such as by switching Hamtramck). The UP-Traverse City district has no county splits at all (!!!), and the Lansing and Flint-Saginaw districts share a de minimis county split but have no splits with any other districts. The Detroit metro has two majority/near-majority black Detroit+ districts, one district entirely in Wayne, one district entirely in Oakland, one district covering the exurban parts of Oakland and Macomb and one district containing the western/southern exurbs+Ann Arbor, which I think is the best possible COI arrangement in the Detroit area. The three counties of the Lansing metro are also kept together without combining them with any other major metro (no combination with Flint, Saginaw, Livingston County, Kalamazoo, etc.)

Without further ado, the map:

MI-01 (Upper Peninsula, Traverse City): 37-59 Trump, Safe R
MI-02 (Holland, Muskegon): 37-57 Trump, Safe R
MI-03 (Grand Rapids): 41-52 Trump, Likely R
MI-04 (Bay City, Port Huron): 32-63 Trump, Safe R
MI-05 (Kalamazoo, Benton Harbor): 42-52 Trump, Likely R
MI-06 (Lansing, Battle Creek, Jackson): 48-46 Clinton, Lean D
MI-07 (Flint, Saginaw, Midland): 48-47 Clinton, Toss-up
MI-08 (Ann Arbor, Monroe, Howell): 50-45 Clinton, Likely D
MI-09 (Pontiac, Royal Oak, Novi): 53-42 Clinton, Safe D
MI-10 (Oxford, Sterling Heights, New Baltimore): 36-59 Trump, Safe R
MI-11 (Dearborn, Livonia, Romulus): 51-44 Clinton, Likely D
MI-12 (Detroit West, Southfield, Inkster): 78-19 Clinton, Safe D (51% black)
MI-13 (Detroit East, Warren, Mount Clemens): 69-28 Clinton, Safe D (49% black)

Total: 6R (4 Safe, 2 Likely), 6D (3 Safe, 2 Likely, 1 Lean), 1 Toss-up

https://davesredistricting.org/join/28069751-857c-44d0-8e44-8abde1dc2f25

Edit: I realized I had an unintentional extra municipal split in Macomb County. I've fixed that on the DRA version, and it actually increased the black percentage in MI-13 just a hair (nearly to the point of rounding up to 50%!).


I think that's probably the best effort I've seen yet in this thread.

I particularly like that MI-2 - it's very hard to make a doughnut seat that doesn't look incredibly awkward, but you pulled it off and it's a good Grand Rapids exurbs seat.

Thanks! I will say it's definitely not necessary to draw the Grand Rapids area that way, though I personally think this is the best COI version because it keeps the Grand Rapids urban+suburban areas together with also keeping rural/small city western Michigan together. I often like donut maps because they allow you to keep a clear separation of urban/suburban areas from rural areas, which have very different interests.

I also like most of the map, though I personally think Donuts don't really work on the congressional level. That said, another advantage of the map is CD's 2 and 3 are in a 'closed ecosystem' so if you have different goals for the seat you can adjust as needed. If you want another cooperative (GOP leaning) seat to counteract the weaker Clinton seats in the east, you could do Muskegon+Newaygo +Grand  Rapids part of Kent. If you just don't like Donuts you could put all of Ottawa or Montcalm+Ionia+Gratiot and then cut away the redder parts of Kent to compensate. It's a great map and template to base future work off of.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 16, 2020, 09:42:17 AM
I just drew a new version of a MI map, and I'm extremely satisfied with it. The goal was to keep very close to the rule of minimizing county and municipal splits while keeping COIs together, and I think this map does an excellent job of both while also coming out with a very fair partisan balance of 6-6-1. It also has two seats that are majority or nearly majority black (and you could fiddle around with the edges to get them both to majority black, such as by switching Hamtramck). The UP-Traverse City district has no county splits at all (!!!), and the Lansing and Flint-Saginaw districts share a de minimis county split but have no splits with any other districts. The Detroit metro has two majority/near-majority black Detroit+ districts, one district entirely in Wayne, one district entirely in Oakland, one district covering the exurban parts of Oakland and Macomb and one district containing the western/southern exurbs+Ann Arbor, which I think is the best possible COI arrangement in the Detroit area. The three counties of the Lansing metro are also kept together without combining them with any other major metro (no combination with Flint, Saginaw, Livingston County, Kalamazoo, etc.)

Without further ado, the map:

MI-01 (Upper Peninsula, Traverse City): 37-59 Trump, Safe R
MI-02 (Holland, Muskegon): 37-57 Trump, Safe R
MI-03 (Grand Rapids): 41-52 Trump, Likely R
MI-04 (Bay City, Port Huron): 32-63 Trump, Safe R
MI-05 (Kalamazoo, Benton Harbor): 42-52 Trump, Likely R
MI-06 (Lansing, Battle Creek, Jackson): 48-46 Clinton, Lean D
MI-07 (Flint, Saginaw, Midland): 48-47 Clinton, Toss-up
MI-08 (Ann Arbor, Monroe, Howell): 50-45 Clinton, Likely D
MI-09 (Pontiac, Royal Oak, Novi): 53-42 Clinton, Safe D
MI-10 (Oxford, Sterling Heights, New Baltimore): 36-59 Trump, Safe R
MI-11 (Dearborn, Livonia, Romulus): 51-44 Clinton, Likely D
MI-12 (Detroit West, Southfield, Inkster): 78-19 Clinton, Safe D (51% black)
MI-13 (Detroit East, Warren, Mount Clemens): 69-28 Clinton, Safe D (49% black)

Total: 6R (4 Safe, 2 Likely), 6D (3 Safe, 2 Likely, 1 Lean), 1 Toss-up

https://davesredistricting.org/join/28069751-857c-44d0-8e44-8abde1dc2f25

Edit: I realized I had an unintentional extra municipal split in Macomb County. I've fixed that on the DRA version, and it actually increased the black percentage in MI-13 just a hair (nearly to the point of rounding up to 50%!).


I think that's probably the best effort I've seen yet in this thread.

I particularly like that MI-2 - it's very hard to make a doughnut seat that doesn't look incredibly awkward, but you pulled it off and it's a good Grand Rapids exurbs seat.

Thanks! I will say it's definitely not necessary to draw the Grand Rapids area that way, though I personally think this is the best COI version because it keeps the Grand Rapids urban+suburban areas together with also keeping rural/small city western Michigan together. I often like donut maps because they allow you to keep a clear separation of urban/suburban areas from rural areas, which have very different interests.

I also like most of the map, though I personally think Donuts don't really work on the congressional level. That said, another advantage of the map is CD's 2 and 3 are in a 'closed ecosystem' so if you have different goals for the seat you can adjust as needed. If you want another cooperative (GOP leaning) seat to counteract the weaker Clinton seats in the east, you could do Muskegon+Newaygo +Grand  Rapids part of Kent. If you just don't like Donuts you could put all of Ottawa or Montcalm+Ionia+Gratiot and then cut away the redder parts of Kent to compensate. It's a great map and template to base future work off of.

I had drawn Muskegon+Newaygo+Mecosta+City of Grand Rapids as an alternative (definitely favorable to the Democrats) map. That version actually voted for Clinton by a few tenths of a percent. But, agreed, really it's just a matter of fiddling around with those two districts if you don't like the donut.

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 16, 2020, 10:18:27 AM
Slight tweak to get that MI-13 to 49.9% black: strip out St. Clair Shores and the remaining bit of Harrison Township, add in all of Clinton Township bar five precincts in the north-west. It makes the map look a little uglier, but it splits fewer municipalities and it doesn't really look worse on a map than the Dearborn/Dearborn Heights split does.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 16, 2020, 12:16:12 PM
Slight tweak to get that MI-13 to 49.9% black: strip out St. Clair Shores and the remaining bit of Harrison Township, add in all of Clinton Township bar five precincts in the north-west. It makes the map look a little uglier, but it splits fewer municipalities and it doesn't really look worse on a map than the Dearborn/Dearborn Heights split does.

I got it to 50% by cutting into Clinton Township along the west instead of the northwest (as the NW corner actually has a fairly high black population).

As an aside, it's shocking how Republican St Clair Shores is. In some precincts, the white vote has to be nearly 80% Trump given the black population, which is almost unheard of for a suburb outside of the Deep South.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 16, 2020, 03:41:02 PM
yeah weird doughnut districts should be avoided.  Livingston should be paired with North and western Oakland, not Ann Arbor.  Also there should be more of an attempt to make a tri cities district.  This means Flint can be paired with the Thumb or Lansing.  I'd say the Thumb makes more sense overall but pairing it with Lansing created a D district.  Otherwise there won't be a Dem seat out of Detroit, just tossups.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Water Hazard on February 16, 2020, 08:09:39 PM
()

I tried my best to satisfy the important COI considerations that have been discussed.

1: UP and northern LP
2: Northern Lake Michigan coast and interior
3: Grand Rapids and relevant Ottawa County suburbs
4: Lansing metro area and surrounding rural areas
5: Genesee County and the tri-cities
6: Southwestern MI, with Kalamazoo and Battle Creek
7: South Central MI and right-trending Wayne suburbs
8: Livingston and Oakland exurbs/outer suburbs
9: Oakland and Macomb inner/middle suburbs
10: Thumb and exurban Macomb
11: Most of Detroit and nearby suburbs
12: Washtenaw and upscale, left-trending western Wayne
13: Western Detroit and blackest parts of Oakland

Districts 4, 5, and 9 would be highly competitive.

The 7th is sort of the "leftovers" district, but I like the arrangement it allows for the 12th and it's pretty uniformly right-trending areas, at least. You could alternatively put the remainder of Wayne with Monroe (almost exactly a full district) and get another competitive district, but that means putting Ann Arbor with rural areas and that's something I wanted to avoid.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 16, 2020, 08:29:44 PM
()

I tried my best to satisfy the important COI considerations that have been discussed.

1: UP and northern LP
2: Northern Lake Michigan coast and interior
3: Grand Rapids and relevant Ottawa County suburbs
4: Lansing metro area and surrounding rural areas
5: Genesee County and the tri-cities
6: Southwestern MI, with Kalamazoo and Battle Creek
7: South Central MI and right-trending Wayne suburbs
8: Livingston and Oakland exurbs/outer suburbs
9: Oakland and Macomb inner/middle suburbs
10: Thumb and exurban Macomb
11: Most of Detroit and nearby suburbs
12: Washtenaw and upscale, left-trending western Wayne
13: Western Detroit and blackest parts of Oakland

Districts 4, 5, and 9 would be highly competitive.

The 7th is sort of the "leftovers" district, but I like the arrangement it allows for the 12th and it's pretty uniformly right-trending areas, at least. You could alternatively put the remainder of Wayne with Monroe (almost exactly a full district) and get another competitive district, but that means putting Ann Arbor with rural areas and that's something I wanted to avoid.

And this my friends is what you get if you try to preserve the gerrymandered lines as best as possible. I applaud your efforts to update them, but they are still tainted.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 12:05:27 AM
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2012/2016 composite data

1 Detroit Exurbs, Livingston+outer Oakland
2 WWC suburbs, Macomb
3 Highly Educated suburbs, southeast Oakland+northwest Wayne
4 VRA Urban Detroit
5 VRA Inner suburbs
6 Lansing, Mount Pleasant, and rural central MI
7 UP and northern mitten, Traverse City
8 Southwest Coast, Muskegon and Holland
9 Ann Arbor, southern Wayne, Monroe County
10 Grand Rapids and eastern Ottowa County
11 Flint and thumb
12 Tri Cities area, rural central and western MI
13 Kalamazoo, Battle Creek, Jackson. rural southern MI

I like how I keep most COIs together throughout the state. Flint gets its own district without competing with another city, Tri Cities get their own district, Lansing metro is kept whole and the Northern suburbs of Detroit don't get ripped apart by being put with urban or rural areas.  I get that the thin strip in district 8 is ugly, but after the 2010 census it will be thicker, taking up the western half of Ottawa County.  I've seen too many maps doing weird stuff like doughnuts, half of Macomb with Detroit, cutting Oakland county 10 ways 'til Sunday, pairing Flint with the Detroit suburbs, an Oakland county to western MI seat YUCK!.  I see way more concern for the exact partisan makeup of the seats and less for MI communities.  





Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 17, 2020, 05:19:32 AM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: cvparty on February 17, 2020, 06:54:14 AM
why is half this thread just idaho conservative posting gerrymanders/praising himself for “keeping COIs together”


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 17, 2020, 08:16:42 AM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.

Imagine seriously defending the idea that Saginaw has more of a COI with the west coast of Michigan than with Flint.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on February 17, 2020, 01:20:17 PM
I think more than anything what this thread really needs is a definition of what exactly the "CoI's" in Michigan really are supposed to be. 

Because looking over the maps here they seem to be all over the place.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Water Hazard on February 17, 2020, 01:34:01 PM
()

I tried my best to satisfy the important COI considerations that have been discussed.

1: UP and northern LP
2: Northern Lake Michigan coast and interior
3: Grand Rapids and relevant Ottawa County suburbs
4: Lansing metro area and surrounding rural areas
5: Genesee County and the tri-cities
6: Southwestern MI, with Kalamazoo and Battle Creek
7: South Central MI and right-trending Wayne suburbs
8: Livingston and Oakland exurbs/outer suburbs
9: Oakland and Macomb inner/middle suburbs
10: Thumb and exurban Macomb
11: Most of Detroit and nearby suburbs
12: Washtenaw and upscale, left-trending western Wayne
13: Western Detroit and blackest parts of Oakland

Districts 4, 5, and 9 would be highly competitive.

The 7th is sort of the "leftovers" district, but I like the arrangement it allows for the 12th and it's pretty uniformly right-trending areas, at least. You could alternatively put the remainder of Wayne with Monroe (almost exactly a full district) and get another competitive district, but that means putting Ann Arbor with rural areas and that's something I wanted to avoid.

And this my friends is what you get if you try to preserve the gerrymandered lines as best as possible. I applaud your efforts to update them, but they are still tainted.

Michigan has changed so much in the last decade that a 2010 gerrymander looks nothing like a 2020 one. The biggest similarity I see here- the 5/9/10 arrangement- was advantageous for the GOP last decade but is likely now Dem-favoring. The Flint district is drawn about as favorably for Dems as it can be (it could easily be split into two double digit Trump districts via the Thumb), and doing so limits the ways 9 and 10 can be compactly drawn, so that's why that portion ends up looking similar. Besides that, many of these districts have a significantly different character than the current ones.

Overall, I think it ends up being pretty fair from a partisan standpoint, at least relative to a reasonable gerrymander for either side.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 17, 2020, 03:24:30 PM

I think double-splitting Wayne and Oakland between MI-9 and MI-12 as on this map is illegal under the Michigan rules. You can't have two districts that both split the same two counties.

Should be solvable by putting Pontiac in MI-09 and pushing MI-12 down through Mexicantown, allowing MI-13 to take up the rest of Wayne from MI-09.

The constitution prioritizes the criteria:

(1) Equal Population.
(2) Contiguity
(3) COI " Districts shall reflect the state's diverse population and communities of interest. Communities of interest may include, but shall not be limited to, populations that share cultural or historical characteristics or economic interests."
(4) Political fairness.
(5) Not favoring/disfavoring incumbent or candidate.
(6) Reflect consideration of county, city, and township boundaries.
(7) Reasonably compact.

I would read that as requiring political boundaries to be ignored if necessary to reflect communities of interest.

COI and fairness are contradictory. If it is a community of interest, it will have political coherence.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 17, 2020, 03:58:08 PM
I think more than anything what this thread really needs is a definition of what exactly the "CoI's" in Michigan really are supposed to be.  

Because looking over the maps here they seem to be all over the place.

Here's a rough attempt at defining COIs. First group are county groupings that should never be split apart because they form a clear combined COI. There are only four of these, standing alone:

Detroit Metro (Wayne, Monroe, Macomb, Oakland, Washtenaw, Livingston): There should be six seats entirely contained in these six counties with no overlap with the rest of the state (other than needing to pull in just a few thousand voters from somewhere else on the 2016 numbers)

Lansing Metro (Ingham, Eaton, Clinton): These counties should all be in the same district and treated as one county.

The Thumb (Saint Clair, Lapeer, Tuscola, Sanilac, Huron): These counties should all be in the same district and treated as one county.

The Upper Peninsula: These counties should all be in the same district and treated as one county (this maybe goes without saying, haven't seen anyone propose splitting it up).

After those groupings, it becomes a bit harder because you're talking about metro areas that are mostly self-contained in one county so could go a few different directions. But there are still obvious groups, like Genessee with Saginaw, Calhoun with Jackson (which forms almost exactly one district with the Lansing metro described above so is ideal; also see my map that shows that this grouping with Genessee/Saginaw/Shiawassee/Midland is a perfect pair of two districts, population-wise, needing only one de minimis split), Kent probably best paired with eastern Ottawa to keep Grand Rapids suburbs with the city, etc.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 04:00:31 PM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.

Imagine seriously defending the idea that Saginaw has more of a COI with the west coast of Michigan than with Flint.
Not with western MI, with the tri-cities area.  Saginaw-Flint breaks up the tri-cities area.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 04:03:14 PM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.
No, cracking would be splitting Gennesee county.  Saginaw and Flint being in different districts is not cracking, they are not a metro or COI.  The tri cities are much more of a community than Flint and Saginaw are.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 17, 2020, 04:04:52 PM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.

Imagine seriously defending the idea that Saginaw has more of a COI with the west coast of Michigan than with Flint.
Not with western MI, with the tri-cities area.  Saginaw-Flint breaks up the tri-cities area.

What's so special about that grouping in particular? They don't have anything more in common with each other than Saginaw has with Flint. Less, generally, as there are significant demographic differences. For example, Bay City and Midland are nearly 100% white while Saginaw has a large black population. Saginaw is also historically an industrial city while Bay City is a shipping center and Midland is more high tech and services.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 04:10:21 PM
why is half this thread just idaho conservative posting gerrymanders/praising himself for “keeping COIs together”
because you don't


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 04:15:15 PM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.

Imagine seriously defending the idea that Saginaw has more of a COI with the west coast of Michigan than with Flint.
Not with western MI, with the tri-cities area.  Saginaw-Flint breaks up the tri-cities area.

What's so special about that grouping in particular? They don't have anything more in common with each other than Saginaw has with Flint. Less, generally, as there are significant demographic differences. For example, Bay City and Midland are nearly 100% white while Saginaw has a large black population. Saginaw is also historically an industrial city while Bay City is a shipping center and Midland is more high tech and services.
https://en.wikipedia.org/wiki/Saginaw,_Midland,_and_Bay_City_metropolitan_area
Tri cities are a region of MI, Flint and Saginaw are two different cities that both happen to have black people.  Race doesn't make a COI, but it matters for VRA purposes in Detroit.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 17, 2020, 04:16:27 PM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.

Imagine seriously defending the idea that Saginaw has more of a COI with the west coast of Michigan than with Flint.
Not with western MI, with the tri-cities area.  Saginaw-Flint breaks up the tri-cities area.

What's so special about that grouping in particular? They don't have anything more in common with each other than Saginaw has with Flint. Less, generally, as there are significant demographic differences. For example, Bay City and Midland are nearly 100% white while Saginaw has a large black population. Saginaw is also historically an industrial city while Bay City is a shipping center and Midland is more high tech and services.
https://en.wikipedia.org/wiki/Saginaw,_Midland,_and_Bay_City_metropolitan_area
Tri cities are a region of MI, Flint and Saginaw are two different cities that both happen to have black people.  Race doesn't make a COI, but it matters for VRA purposes in Detroit.

It's explicitly not a region based on that link. Midland, Saginaw and Bay City are all separate MSAs. The "Central Michigan" region as defined by the state of Michigan also includes Flint as well as Mount Pleasant and some rural counties.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 17, 2020, 04:24:39 PM
The recognized tri-cities community is Saginaw-Midland-Bay City, but most groupers also throw in Flint because of the regions economic ties. They are all oriented along route 85, and all are at least somewhat postindustrial. They all are distinct from the rural thumb, whose most similar cousins are across the bay in upper Michigan (all residents I have chat with want something like this), all distinct from the universities to their west, and distinct from the Detroit suburbs to their south.

The point of keeping counties whole is that counties are the default COI. If there is no better or clearer COI, the the county level is best observed. If there is a better COI, than it comes before the county. If there are lots of counties like in Michigan, you get cross-county COIs that deserve the same respect as inter-county ones. We have cases here where those outside of Wayne have clear cross-county COIs: rural Thumb+Upland, the route 85 tri-cities corridor, the central universities, and the Wayne exurbs.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 04:27:55 PM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.

Imagine seriously defending the idea that Saginaw has more of a COI with the west coast of Michigan than with Flint.
Not with western MI, with the tri-cities area.  Saginaw-Flint breaks up the tri-cities area.

What's so special about that grouping in particular? They don't have anything more in common with each other than Saginaw has with Flint. Less, generally, as there are significant demographic differences. For example, Bay City and Midland are nearly 100% white while Saginaw has a large black population. Saginaw is also historically an industrial city while Bay City is a shipping center and Midland is more high tech and services.
https://en.wikipedia.org/wiki/Saginaw,_Midland,_and_Bay_City_metropolitan_area
Tri cities are a region of MI, Flint and Saginaw are two different cities that both happen to have black people.  Race doesn't make a COI, but it matters for VRA purposes in Detroit.

It's explicitly not a region based on that link. Midland, Saginaw and Bay City are all separate MSAs. The "Central Michigan" region as defined by the state of Michigan also includes Flint as well as Mount Pleasant and some rural counties.
Well it's not a metro but a region which is a CSA.  Not all CSAs can be kept together but this can.  Tri cities are more a region than Flint and Saginaw.  The tri cities have economic ties and share an airport.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 04:31:49 PM
The recognized tri-cities community is Saginaw-Midland-Bay City, but most groupers also throw in Flint because of the regions economic ties. They are all oriented along route 85, and all are at least somewhat postindustrial. They all are distinct from the rural thumb, whose most similar cousins are across the bay in upper Michigan (all residents I have chat with want something like this), all distinct from the universities to their west, and distinct from the Detroit suburbs to their south.

The point of keeping counties whole is that counties are the default COI. If there is no better or clearer COI, the the county level is best observed. If there is a better COI, than it comes before the county. If there are lots of counties like in Michigan, you get cross-county COIs that deserve the same respect as inter-county ones. We have cases here where those outside of Wayne have clear cross-county COIs: rural Thumb+Upland, the route 85 tri-cities corridor, the central universities, and the Wayne exurbs.
Well the tri cities and Flint can't be together.  You can do Tri Cities or Flint-Saginaw.  If Flint isn't paired with Saginaw it can go with Lansing or the Thumb.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 17, 2020, 04:33:47 PM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.

Imagine seriously defending the idea that Saginaw has more of a COI with the west coast of Michigan than with Flint.
Not with western MI, with the tri-cities area.  Saginaw-Flint breaks up the tri-cities area.

What's so special about that grouping in particular? They don't have anything more in common with each other than Saginaw has with Flint. Less, generally, as there are significant demographic differences. For example, Bay City and Midland are nearly 100% white while Saginaw has a large black population. Saginaw is also historically an industrial city while Bay City is a shipping center and Midland is more high tech and services.
https://en.wikipedia.org/wiki/Saginaw,_Midland,_and_Bay_City_metropolitan_area
Tri cities are a region of MI, Flint and Saginaw are two different cities that both happen to have black people.  Race doesn't make a COI, but it matters for VRA purposes in Detroit.

Let's look at the actual criteria for COI:

The constitution prioritizes the criteria:

(1) Equal Population.
(2) Contiguity
(3) COI " Districts shall reflect the state's diverse population and communities of interest. Communities of interest may include, but shall not be limited to, populations that share cultural or historical characteristics or economic interests."
(4) Political fairness.
(5) Not favoring/disfavoring incumbent or candidate.
(6) Reflect consideration of county, city, and township boundaries.
(7) Reasonably compact.

The existence of minority communities can fairly clearly be argued to be a cultural characteristic (and to some extent also reflects historic economic patterns.) Historically, Genesee and the bulk of Saginaw's population have been in the same congressional district since 1992 and Saginaw and Midland haven't been in the same district since at least 1972. And yes, post-industrial cities rapidly losing population have more in common with each economically other than they do with rural areas with no industrial heritage whatsoever.

I would also note that it's not even an either/or whether Saginaw goes with Genesee or with Bay and Midland. Based on 2018 numbers, that four county group has about 2% too many people, which can easily be dealt with by cutting out western Midland or northern Bay, neither or which are obviously out of place in a northern Michigan district. Your argument actually depends upon the notion that the Thumb can't go with exurban Macomb and/or Oakland, which is not a proposition you've actually made coherently yet.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 04:44:39 PM
Most Clear COIs:
6 county Detroit area
3 county Lansing area
UP
Thumb
Flint
Grand Rapids and suburbs in eastern Ottawa county

Other COIs that should be respected if possible:
Macomb
Livingston+exurban Oakland
Tri-Cities Area
Ann Arbor+college educated communities in western Wayne
Arab communities in Wayne
Kalamazoo-Battle Creek
Huron Coast




Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 17, 2020, 04:45:28 PM
The recognized tri-cities community is Saginaw-Midland-Bay City, but most groupers also throw in Flint because of the regions economic ties. They are all oriented along route 85, and all are at least somewhat postindustrial. They all are distinct from the rural thumb, whose most similar cousins are across the bay in upper Michigan (all residents I have chat with want something like this), all distinct from the universities to their west, and distinct from the Detroit suburbs to their south.

The point of keeping counties whole is that counties are the default COI. If there is no better or clearer COI, the the county level is best observed. If there is a better COI, than it comes before the county. If there are lots of counties like in Michigan, you get cross-county COIs that deserve the same respect as inter-county ones. We have cases here where those outside of Wayne have clear cross-county COIs: rural Thumb+Upland, the route 85 tri-cities corridor, the central universities, and the Wayne exurbs.
Well the tri cities and Flint can't be together.  You can do Tri Cities or Flint-Saginaw.  If Flint isn't paired with Saginaw it can go with Lansing or the Thumb.

And Lansing and the thumb have better partners than Flint. Remember how I said that the rural, Lakeshore oriented, thumb is best paired with the upstate. How it is something every Michigan resident I have consulted with agrees to? Hell, Even
 Dave Wasserman in a hypothetical map linked the two. Well, we cannot link the two via water across the bay. Therefore, going through Bay City is the easiest solution. Guess what? Flint + Saginaw + Midland is a viable cd, with a bit more tacked on of course.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 04:49:12 PM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.

Imagine seriously defending the idea that Saginaw has more of a COI with the west coast of Michigan than with Flint.
Not with western MI, with the tri-cities area.  Saginaw-Flint breaks up the tri-cities area.

What's so special about that grouping in particular? They don't have anything more in common with each other than Saginaw has with Flint. Less, generally, as there are significant demographic differences. For example, Bay City and Midland are nearly 100% white while Saginaw has a large black population. Saginaw is also historically an industrial city while Bay City is a shipping center and Midland is more high tech and services.
https://en.wikipedia.org/wiki/Saginaw,_Midland,_and_Bay_City_metropolitan_area
Tri cities are a region of MI, Flint and Saginaw are two different cities that both happen to have black people.  Race doesn't make a COI, but it matters for VRA purposes in Detroit.

Let's look at the actual criteria for COI:

The constitution prioritizes the criteria:

(1) Equal Population.
(2) Contiguity
(3) COI " Districts shall reflect the state's diverse population and communities of interest. Communities of interest may include, but shall not be limited to, populations that share cultural or historical characteristics or economic interests."
(4) Political fairness.
(5) Not favoring/disfavoring incumbent or candidate.
(6) Reflect consideration of county, city, and township boundaries.
(7) Reasonably compact.

The existence of minority communities can fairly clearly be argued to be a cultural characteristic (and to some extent also reflects historic economic patterns.) Historically, Genesee and the bulk of Saginaw's population have been in the same congressional district since 1992 and Saginaw and Midland haven't been in the same district since at least 1972. And yes, post-industrial cities rapidly losing population have more in common with each economically other than they do with rural areas with no industrial heritage whatsoever.

I would also note that it's not even an either/or whether Saginaw goes with Genesee or with Bay and Midland. Based on 2018 numbers, that four county group has about 2% too many people, which can easily be dealt with by cutting out western Midland or northern Bay, neither or which are obviously out of place in a northern Michigan district. Your argument actually depends upon the notion that the Thumb can't go with exurban Macomb and/or Oakland, which is not a proposition you've actually made coherently yet.
I thought it had been settled metro Detroit was a COI.  Exurban Detroit with the Thumb makes no sense.  The thumb would go better with Flint, tri cities, or the rest of the coast.  Detroit is its own thing.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 17, 2020, 04:56:52 PM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.

Imagine seriously defending the idea that Saginaw has more of a COI with the west coast of Michigan than with Flint.
Not with western MI, with the tri-cities area.  Saginaw-Flint breaks up the tri-cities area.

What's so special about that grouping in particular? They don't have anything more in common with each other than Saginaw has with Flint. Less, generally, as there are significant demographic differences. For example, Bay City and Midland are nearly 100% white while Saginaw has a large black population. Saginaw is also historically an industrial city while Bay City is a shipping center and Midland is more high tech and services.
https://en.wikipedia.org/wiki/Saginaw,_Midland,_and_Bay_City_metropolitan_area
Tri cities are a region of MI, Flint and Saginaw are two different cities that both happen to have black people.  Race doesn't make a COI, but it matters for VRA purposes in Detroit.

Let's look at the actual criteria for COI:

The constitution prioritizes the criteria:

(1) Equal Population.
(2) Contiguity
(3) COI " Districts shall reflect the state's diverse population and communities of interest. Communities of interest may include, but shall not be limited to, populations that share cultural or historical characteristics or economic interests."
(4) Political fairness.
(5) Not favoring/disfavoring incumbent or candidate.
(6) Reflect consideration of county, city, and township boundaries.
(7) Reasonably compact.

The existence of minority communities can fairly clearly be argued to be a cultural characteristic (and to some extent also reflects historic economic patterns.) Historically, Genesee and the bulk of Saginaw's population have been in the same congressional district since 1992 and Saginaw and Midland haven't been in the same district since at least 1972. And yes, post-industrial cities rapidly losing population have more in common with each economically other than they do with rural areas with no industrial heritage whatsoever.

I would also note that it's not even an either/or whether Saginaw goes with Genesee or with Bay and Midland. Based on 2018 numbers, that four county group has about 2% too many people, which can easily be dealt with by cutting out western Midland or northern Bay, neither or which are obviously out of place in a northern Michigan district. Your argument actually depends upon the notion that the Thumb can't go with exurban Macomb and/or Oakland, which is not a proposition you've actually made coherently yet.
I thought it had been settled metro Detroit was a COI.  Exurban Detroit with the Thumb makes no sense.  The thumb would go better with Flint, tri cities, or the rest of the coast.  Detroit is its own thing.

Detroit is its own thing. The Detroit metropolitan area is a thing. I see no evidence that's the same thing as the northern townships of Oakland and Macomb, which aren't urbanised to any significant degree. The fact that Ray township is in the same county as Warren doesn't mean it is actually meaningfully like Warren.

FWIW, I think the Thumb probably goes best with northern Michigan via Bay (I might even be tempted to cut out Bay City into the Flint/Tri-Cities district and jump the Saginaw River, though I doubt a commission would go for that.) But I see no reason to get precious about breaching the St. Clair-Macomb boundary or the Oakland-Lapeer boundary if you're not going to reach down into the actual urban area itself.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 05:39:38 PM
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2012/2016 composite

Well I listened to complaints and made adjustments, now there's a Flint-Saginaw-Midland district which votes Dem in the last 2 elections, albeit narrowly in 2016.  Now the Thumb is part of a Huron Coast district.  I still prefer the previous map, but this one would be more passable being 7-6. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 17, 2020, 06:20:42 PM
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2012/2016 composite

Well I listened to complaints and made adjustments, now there's a Flint-Saginaw-Midland district which votes Dem in the last 2 elections, albeit narrowly in 2016.  Now the Thumb is part of a Huron Coast district.  I still prefer the previous map, but this one would be more passable being 7-6.  

For what it's worth, you appear to be using 2010 census figures (thus the larger Grand Rapids-based district than my map, e.g., and the bigger split of Lenawee), which may be skewing the map in other ways. 2016 estimates are not the same as what will be reported in the 2020 census, of course, but they should be closer to 2020 than 2010 figures would be.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 17, 2020, 06:28:26 PM
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2012/2016 composite

Well I listened to complaints and made adjustments, now there's a Flint-Saginaw-Midland district which votes Dem in the last 2 elections, albeit narrowly in 2016.  Now the Thumb is part of a Huron Coast district.  I still prefer the previous map, but this one would be more passable being 7-6.  

For what it's worth, you appear to be using 2010 census figures (thus the larger Grand Rapids-based district than my map, e.g., and the bigger split of Lenawee), which may be skewing the map in other ways. 2016 estimates are not the same as what will be reported in the 2020 census, of course, but they should be closer to 2020 than 2010 figures would be.

Hell, I'm not even sure why you are using the 2010 module for Michigan - the 2016 one uniquely has 2016 election data.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 06:39:04 PM


For what it's worth, you appear to be using 2010 census figures (thus the larger Grand Rapids-based district than my map, e.g., and the bigger split of Lenawee), which may be skewing the map in other ways. 2016 estimates are not the same as what will be reported in the 2020 census, of course, but they should be closer to 2020 than 2010 figures would be.
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my map adjusted for 2016 population estimates.  GR area looks better.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 17, 2020, 08:39:44 PM
not really.  You just want them together so the seat doesn't vote Trump.  Saginaw and Flint are different cities, not a single COI.  Now if I'm a Republican on the commission, I might still agree to a Flint-Saginaw district, it's a small concession.  But the other side would need to cooperate in other areas.  It's inevitable some districts will be drawn in a way that disproportionately favor one party, but the whole map can't be drawn with subtle decisions that all happen to favor 1 party.

The commission isn't made up of political apparatchiks or rabid party hacks. All the members are selected at random from a pool of independent applicants. And to serve on the commission you can't actually have any political ties whatsoever (no position within a party, staffer, lobbyist, consultant etc), merely that you registered as a member of a party on voter rolls. Just look at the Arizona commission for what the membership will be like. All lawyers, most with doctorates and additional degrees, and with no actual political links.
The aim of the commission is not to draw a bipartisan gerrymander. It's to draw a fair map that prioritises COIs while making sure it doesn't advantage either party (and yes that means adjusting for the geographic disadvantage).
Michigan does not have party registration.

Why are suggesting looking at Arizona?

I don't understand the part about lawyers and additional degrees.

Explain?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 17, 2020, 09:19:29 PM
"Flint gets its own district" is a particularly euphemistic way of describing a fairly obvious attempt at cracking.
To get to 6 districts in SE Michigan you have a choice between adding Genesee or Washtenaw.

Ypsilanti is tied to Detroit as much as it is Ann Arbor. Going north you are in clearly exurban low populated areas before you get to Flint.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 17, 2020, 09:38:35 PM
The recognized tri-cities community is Saginaw-Midland-Bay City, but most groupers also throw in Flint because of the regions economic ties. They are all oriented along route 85, and all are at least somewhat postindustrial. They all are distinct from the rural thumb, whose most similar cousins are across the bay in upper Michigan (all residents I have chat with want something like this), all distinct from the universities to their west, and distinct from the Detroit suburbs to their south.

The point of keeping counties whole is that counties are the default COI. If there is no better or clearer COI, the the county level is best observed. If there is a better COI, than it comes before the county. If there are lots of counties like in Michigan, you get cross-county COIs that deserve the same respect as inter-county ones. We have cases here where those outside of Wayne have clear cross-county COIs: rural Thumb+Upland, the route 85 tri-cities corridor, the central universities, and the Wayne exurbs.
Well the tri cities and Flint can't be together.  You can do Tri Cities or Flint-Saginaw.  If Flint isn't paired with Saginaw it can go with Lansing or the Thumb.

And Lansing and the thumb have better partners than Flint. Remember how I said that the rural, Lakeshore oriented, thumb is best paired with the upstate. How it is something every Michigan resident I have consulted with agrees to? Hell, Even
 Dave Wasserman in a hypothetical map linked the two. Well, we cannot link the two via water across the bay. Therefore, going through Bay City is the easiest solution. Guess what? Flint + Saginaw + Midland is a viable cd, with a bit more tacked on of course.

Why can't you go across Saginaw Bay?

"Districts shall be geographically contiguous. Island areas are considered to be contiguous by land to the county of which they are a part."

Doesn't this say that counties encompass all offshore waters, including any islands.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 17, 2020, 09:44:45 PM
The recognized tri-cities community is Saginaw-Midland-Bay City, but most groupers also throw in Flint because of the regions economic ties. They are all oriented along route 85, and all are at least somewhat postindustrial. They all are distinct from the rural thumb, whose most similar cousins are across the bay in upper Michigan (all residents I have chat with want something like this), all distinct from the universities to their west, and distinct from the Detroit suburbs to their south.

The point of keeping counties whole is that counties are the default COI. If there is no better or clearer COI, the the county level is best observed. If there is a better COI, than it comes before the county. If there are lots of counties like in Michigan, you get cross-county COIs that deserve the same respect as inter-county ones. We have cases here where those outside of Wayne have clear cross-county COIs: rural Thumb+Upland, the route 85 tri-cities corridor, the central universities, and the Wayne exurbs.
Well the tri cities and Flint can't be together.  You can do Tri Cities or Flint-Saginaw.  If Flint isn't paired with Saginaw it can go with Lansing or the Thumb.

And Lansing and the thumb have better partners than Flint. Remember how I said that the rural, Lakeshore oriented, thumb is best paired with the upstate. How it is something every Michigan resident I have consulted with agrees to? Hell, Even
 Dave Wasserman in a hypothetical map linked the two. Well, we cannot link the two via water across the bay. Therefore, going through Bay City is the easiest solution. Guess what? Flint + Saginaw + Midland is a viable cd, with a bit more tacked on of course.

Why can't you go across Saginaw Bay?

"Districts shall be geographically contiguous. Island areas are considered to be contiguous by land to the county of which they are a part."

Doesn't this say that counties encompass all offshore waters, including any islands.
Districts should be contiguous unless they physically can't be (like the UP).  I think the vast majority of people would agree.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 17, 2020, 09:53:57 PM

Why can't you go across Saginaw Bay?

"Districts shall be geographically contiguous. Island areas are considered to be contiguous by land to the county of which they are a part."

Doesn't this say that counties encompass all offshore waters, including any islands.
Districts should be contiguous unless they physically can't be (like the UP).  I think the vast majority of people would agree.
In the 19th Century, the two northern Michigan districts were Huron+Superior shoreline and Michigan shoreline, both UP and LP.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 17, 2020, 10:01:24 PM
The recognized tri-cities community is Saginaw-Midland-Bay City, but most groupers also throw in Flint because of the regions economic ties. They are all oriented along route 85, and all are at least somewhat postindustrial. They all are distinct from the rural thumb, whose most similar cousins are across the bay in upper Michigan (all residents I have chat with want something like this), all distinct from the universities to their west, and distinct from the Detroit suburbs to their south.

The point of keeping counties whole is that counties are the default COI. If there is no better or clearer COI, the the county level is best observed. If there is a better COI, than it comes before the county. If there are lots of counties like in Michigan, you get cross-county COIs that deserve the same respect as inter-county ones. We have cases here where those outside of Wayne have clear cross-county COIs: rural Thumb+Upland, the route 85 tri-cities corridor, the central universities, and the Wayne exurbs.
Well the tri cities and Flint can't be together.  You can do Tri Cities or Flint-Saginaw.  If Flint isn't paired with Saginaw it can go with Lansing or the Thumb.

And Lansing and the thumb have better partners than Flint. Remember how I said that the rural, Lakeshore oriented, thumb is best paired with the upstate. How it is something every Michigan resident I have consulted with agrees to? Hell, Even
 Dave Wasserman in a hypothetical map linked the two. Well, we cannot link the two via water across the bay. Therefore, going through Bay City is the easiest solution. Guess what? Flint + Saginaw + Midland is a viable cd, with a bit more tacked on of course.

Why can't you go across Saginaw Bay?

"Districts shall be geographically contiguous. Island areas are considered to be contiguous by land to the county of which they are a part."

Doesn't this say that counties encompass all offshore waters, including any islands.

I agree in theory, and I don't think this is a completely crazy idea as it does keep genuinely rural areas together and separate from cities, but I think it would meet with a fair amount of resistance.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 18, 2020, 12:29:17 AM
I would also note that it's not even an either/or whether Saginaw goes with Genesee or with Bay and Midland. Based on 2018 numbers, that four county group has about 2% too many people, which can easily be dealt with by cutting out western Midland or northern Bay, neither or which are obviously out of place in a northern Michigan district. Your argument actually depends upon the notion that the Thumb can't go with exurban Macomb and/or Oakland, which is not a proposition you've actually made coherently yet.

Genesee+Tri-Cities counties is indeed only 16k over pop on 2018 estimates. And for comparison they were 57k over in 2010 and 35k over in 2016. Given the rate of decline it looks very likely that Genesee+Saginaw+Bay+Midland Counties will be extremely close to perfect population in the 2020 census. Which only makes the Flint+Tri-Cities pairing more appealing.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 18, 2020, 01:59:47 AM
I would also note that it's not even an either/or whether Saginaw goes with Genesee or with Bay and Midland. Based on 2018 numbers, that four county group has about 2% too many people, which can easily be dealt with by cutting out western Midland or northern Bay, neither or which are obviously out of place in a northern Michigan district. Your argument actually depends upon the notion that the Thumb can't go with exurban Macomb and/or Oakland, which is not a proposition you've actually made coherently yet.

Genesee+Tri-Cities counties is indeed only 16k over pop on 2018 estimates. And for comparison they were 57k over in 2010 and 35k over in 2016. Given the rate of decline it looks very likely that Genesee+Saginaw+Bay+Midland Counties will be extremely close to perfect population in the 2020 census. Which only makes the Flint+Tri-Cities pairing more appealing.
Clinton won such a a district by about 2,000 votes. If you do that, you all but assure a thumb+northern Macomb district.  This is similar to the current map, but there will definitely be differences.  I predict Lasing will be kept whole and an exurban Oakland+Livingston district.  MI-4 is likely the seat eliminated.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 18, 2020, 02:14:17 AM
I would also note that it's not even an either/or whether Saginaw goes with Genesee or with Bay and Midland. Based on 2018 numbers, that four county group has about 2% too many people, which can easily be dealt with by cutting out western Midland or northern Bay, neither or which are obviously out of place in a northern Michigan district. Your argument actually depends upon the notion that the Thumb can't go with exurban Macomb and/or Oakland, which is not a proposition you've actually made coherently yet.

Genesee+Tri-Cities counties is indeed only 16k over pop on 2018 estimates. And for comparison they were 57k over in 2010 and 35k over in 2016. Given the rate of decline it looks very likely that Genesee+Saginaw+Bay+Midland Counties will be extremely close to perfect population in the 2020 census. Which only makes the Flint+Tri-Cities pairing more appealing.
Clinton won such a a district by about 2,000 votes. If you do that, you all but assure a thumb+northern Macomb district.  This is similar to the current map, but there will definitely be differences.  I predict Lansing will be kept whole and an exurban Oakland+Livingston district.  MI-4 is likely the seat eliminated.
A Thumb+N Macomb/Oakland district seems like the best way to balance COIs. A Thumb+N Michigan would be better but then you either split the Tri Cities or force Flint into a horrid pairing with the Detroit exurbs or combined with Lansing in a clear gerrymander. The Thumb doesn't really have anywhere good to go that doesn't mess with other COIs, but combining it with the Detroit exurbs and rural fringe seems like the pairing that causes the least harm. And I don't think anyone debates that the 4th will be the seat that's eliminated. Hard to see how the 4th could possibly survive, really.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 18, 2020, 03:16:20 AM
I would also note that it's not even an either/or whether Saginaw goes with Genesee or with Bay and Midland. Based on 2018 numbers, that four county group has about 2% too many people, which can easily be dealt with by cutting out western Midland or northern Bay, neither or which are obviously out of place in a northern Michigan district. Your argument actually depends upon the notion that the Thumb can't go with exurban Macomb and/or Oakland, which is not a proposition you've actually made coherently yet.

Genesee+Tri-Cities counties is indeed only 16k over pop on 2018 estimates. And for comparison they were 57k over in 2010 and 35k over in 2016. Given the rate of decline it looks very likely that Genesee+Saginaw+Bay+Midland Counties will be extremely close to perfect population in the 2020 census. Which only makes the Flint+Tri-Cities pairing more appealing.
Clinton won such a a district by about 2,000 votes. If you do that, you all but assure a thumb+northern Macomb district.  This is similar to the current map, but there will definitely be differences.  I predict Lansing will be kept whole and an exurban Oakland+Livingston district.  MI-4 is likely the seat eliminated.
A Thumb+N Macomb/Oakland district seems like the best way to balance COIs. A Thumb+N Michigan would be better but then you either split the Tri Cities or force Flint into a horrid pairing with the Detroit exurbs or combined with Lansing in a clear gerrymander. The Thumb doesn't really have anywhere good to go that doesn't mess with other COIs, but combining it with the Detroit exurbs and rural fringe seems like the pairing that causes the least harm. And I don't think anyone debates that the 4th will be the seat that's eliminated. Hard to see how the 4th could possibly survive, really.
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Here is a map with a Flint+Tri Cities district.  Overall a pretty fair map and I could see the commission passing something like this.  Likely a 7R-6D map but either side could pick off another seat or 2 in a good year.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 18, 2020, 04:53:06 AM
I would also note that it's not even an either/or whether Saginaw goes with Genesee or with Bay and Midland. Based on 2018 numbers, that four county group has about 2% too many people, which can easily be dealt with by cutting out western Midland or northern Bay, neither or which are obviously out of place in a northern Michigan district. Your argument actually depends upon the notion that the Thumb can't go with exurban Macomb and/or Oakland, which is not a proposition you've actually made coherently yet.

Genesee+Tri-Cities counties is indeed only 16k over pop on 2018 estimates. And for comparison they were 57k over in 2010 and 35k over in 2016. Given the rate of decline it looks very likely that Genesee+Saginaw+Bay+Midland Counties will be extremely close to perfect population in the 2020 census. Which only makes the Flint+Tri-Cities pairing more appealing.
Clinton won such a a district by about 2,000 votes. If you do that, you all but assure a thumb+northern Macomb district.  This is similar to the current map, but there will definitely be differences.  I predict Lansing will be kept whole and an exurban Oakland+Livingston district.  MI-4 is likely the seat eliminated.
A Thumb+N Macomb/Oakland district seems like the best way to balance COIs. A Thumb+N Michigan would be better but then you either split the Tri Cities or force Flint into a horrid pairing with the Detroit exurbs or combined with Lansing in a clear gerrymander. The Thumb doesn't really have anywhere good to go that doesn't mess with other COIs, but combining it with the Detroit exurbs and rural fringe seems like the pairing that causes the least harm. And I don't think anyone debates that the 4th will be the seat that's eliminated. Hard to see how the 4th could possibly survive, really.
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Here is a map with a Flint+Tri Cities district.  Overall a pretty fair map and I could see the commission passing something like this.  Likely a 7R-6D map but either side could pick off another seat or 2 in a good year.
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Somewhere between your map and the above map looks likely to result from the commission.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 18, 2020, 11:39:22 AM
Why can't you go across Saginaw Bay?

"Districts shall be geographically contiguous. Island areas are considered to be contiguous by land to the county of which they are a part."

Doesn't this say that counties encompass all offshore waters, including any islands.

I agree in theory, and I don't think this is a completely crazy idea as it does keep genuinely rural areas together and separate from cities, but I think it would meet with a fair amount of resistance.

It will be interesting to see what the dynamic of the commission will be.

Justin Leavitt made a presentation to the the selection panel in California, in which he said one of the main skills that commissioners should have is the ability to question their lawyers and demographers and other experts.

In Michigan, the commissioners are going to be drawn by lottery, with almost zero screening. Michigan does not have partisan registration, and party selection in primary elections is secret. Yet the commissioners are expected to declare a party affiliation and be selected on that basis.

The SOS who is in charge of the lottery added a couple of optional questions, letting an applicant explain why they considered themselves affiliated with a party, and why they wanted to serve on the commission. Each of the four legislative leaders may make 5 strikes  from a randomly selected pool of 200 (60D, 60R, and 80I).

Remember they won't be choosing commissioners, they will be knocking potential commissioners. If you are a Republican leader who do you go after? Some independents who you think might be biased? Some Democrats who you think might be forceful leaders. No doubt they will try to do some background checks, but even if you work with the other leader of your party, you can only take out 10 of 200.

The commission of 13 total strangers of varying competence will be expected to choose a lawyer and mapping specialists, and arrange hearings, etc. The SOS is designated as the secretary of the commission. Will they be susceptible to being led?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 19, 2020, 12:14:56 PM
Why can't you go across Saginaw Bay?

"Districts shall be geographically contiguous. Island areas are considered to be contiguous by land to the county of which they are a part."

Doesn't this say that counties encompass all offshore waters, including any islands.

I agree in theory, and I don't think this is a completely crazy idea as it does keep genuinely rural areas together and separate from cities, but I think it would meet with a fair amount of resistance.

It will be interesting to see what the dynamic of the commission will be.

Justin Leavitt made a presentation to the the selection panel in California, in which he said one of the main skills that commissioners should have is the ability to question their lawyers and demographers and other experts.

In Michigan, the commissioners are going to be drawn by lottery, with almost zero screening. Michigan does not have partisan registration, and party selection in primary elections is secret. Yet the commissioners are expected to declare a party affiliation and be selected on that basis.

The SOS who is in charge of the lottery added a couple of optional questions, letting an applicant explain why they considered themselves affiliated with a party, and why they wanted to serve on the commission. Each of the four legislative leaders may make 5 strikes  from a randomly selected pool of 200 (60D, 60R, and 80I).

Remember they won't be choosing commissioners, they will be knocking potential commissioners. If you are a Republican leader who do you go after? Some independents who you think might be biased? Some Democrats who you think might be forceful leaders. No doubt they will try to do some background checks, but even if you work with the other leader of your party, you can only take out 10 of 200.

The commission of 13 total strangers of varying competence will be expected to choose a lawyer and mapping specialists, and arrange hearings, etc. The SOS is designated as the secretary of the commission. Will they be susceptible to being led?

I mentioned this in my original writeup. White there is some degree of self-selection, you need to respond to the SoS's mailed invitation, and said self-selection will trend towards 'professionals' with the time and knowledge to commit to their potential undertaking, it will lead to a ore random and fragmented selection than in CA. This could very well lead to cliques of councilors forming, a handful of individuals dominating the commission, or potential 'guidance' from the SoS. However, it's most likely to result in individuals committed to their preconceived COIs from their region of the state, and therefore will only approve maps that conform to those guidelines, along with the most vocal of public input.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 19, 2020, 12:29:11 PM
So after everyone discussed COIs a while back, I decided to explore a map that was mainly based on COIs. It ended up unusual. The 'guiding' districts in this case were CD5 which has all of the tri-cities and Flint, CD4 which crosses the Saginaw river to link the Thump and the Upstate, CD1 which actually gets all of the non-urbanized west coast, and CD7 which puts all the notable central MI college towns together. CD9 gets the Grosse Pointe's because their local lines cross the border of Wayne and Macomb. One of the AA seats has all the arabs, as I tend to prefer when possible. The main victim of the mid-state getting their COI's is CD8, but it isn't affected too much as far as pop distribution is concerned.

Trump won 7 seats when he won by less than 1%. When whitmer won by 10% she no only got the 6 Clinton seats and the swingy Macomb seat, she also got the Grand Rapids seat by <3K votes.

https://davesredistricting.org/join/c7f30e42-14ef-444d-a14b-2e7b25639720

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 19, 2020, 12:53:45 PM
So after everyone discussed COIs a while back, I decided to explore a map that was mainly based on COIs. It ended up unusual. The 'guiding' districts in this case were CD5 which has all of the tri-cities and Flint, CD4 which crosses the Saginaw river to link the Thump and the Upstate, CD1 which actually gets all of the non-urbanized west coast, and CD7 which puts all the notable central MI college towns together. CD9 gets the Grosse Pointe's because their local lines cross the border of Wayne and Macomb. One of the AA seats has all the arabs, as I tend to prefer when possible. The main victim of the mid-state getting their COI's is CD8, but it isn't affected too much as far as pop distribution is concerned.

Trump won 7 seats when he won by less than 1%. When whitmer won by 10% she no only got the 6 Clinton seats and the swingy Macomb seat, she also got the Grand Rapids seat by <3K votes.

https://davesredistricting.org/join/c7f30e42-14ef-444d-a14b-2e7b25639720

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Is it possible to put Shiawassee with Lansing? I think that would look neater and be a bit better from a COI perspective.

The rest of the map is decent, but this is on the 2010 figures. If you pull up the 2016 map, you get 2016 presidential results with updated Census estimates.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 19, 2020, 01:01:33 PM

Regardless of whether or not DRA has data on the 2016 map, I always draw my lines there. Then I redraw the map in the 2010 data, since the 2010 map has more information on the precinct level and the census tracts often used on the 2016 level are sometimes weird. Michigan just is nice enough to have 2016 data in the 2016 module. Every image/map I have ever posted here is in the 2010 module, transcribed from the 2016 one. So, this is the 2016 map.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 19, 2020, 01:15:33 PM
As it happens, I just finished drawing a similar map based off a district jumping over the Saginaw River:

https://davesredistricting.org/join/38383e2f-7132-4b5e-89b0-7b8c8bdcd477

The major differences to Oryxslayer's map are that Shiawassee goes in the Lansing district and Jackson mostly in the Kalamazoo district and that Grand Rapids district goes west instead of east.

Clinton wins six districts in this map, but two of them only narrowly. Obama carried ten of them in 2008 (though not the Grand Rapids district, which these days is probably the seventh best Democratic prospect.)

I think this map has some positives to it, but overall I think it shows the problem of a Thumb/Huron Shore district, which is that the two areas aren't really big enough for a congressional district. To get the necessary population, you either need to reach into exurban Macomb, or the Tri-Cities area, or well into the interior of northern Michigan, or some combination thereof. And if you're going to do that, why not just go the whole hog and tack the two areas on to separate districts?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 19, 2020, 01:31:42 PM
As it happens, I just finished drawing a similar map based off a district jumping over the Saginaw River:

https://davesredistricting.org/join/38383e2f-7132-4b5e-89b0-7b8c8bdcd477

The major differences to Oryxslayer's map are that Shiawassee goes in the Lansing district and Calhoun mostly in the Kalamazoo district and that Grand Rapids district goes west instead of east.

Clinton wins six districts in this map, but two of them only narrowly. Obama carried ten of them in 2008 (though not the Grand Rapids district, which these days is probably the seventh best Democratic prospect.)

I think this map has some positives to it, but overall I think it shows the problem of a Thumb/Huron Shore district, which is that the two areas aren't really big enough for a congressional district. To get the necessary population, you either need to reach into exurban Macomb, or the Tri-Cities area, or well into the interior of northern Michigan, or some combination thereof. And if you're going to do that, why not just go the whole hog and tack the two areas on to separate districts?

I think the Macomb district is still the Democrats' 7th potential seat on this map (despite being stronger for Trump), but both the Grand Rapids seat and the Kalamazoo-Battle Creek-Jackson seat have some potential. Long-term, I can't see Macomb doing anything but boomeranging back towards the Democrats, demographically, as the black population is booming in southern Macomb, and fundamentally Macomb is still a suburban county.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 19, 2020, 01:40:53 PM
Anyway, here's a quick alternative to Shiawassee in the 8th. Shiawassee in general is rather small when compared to her neighbors, and lacks a clear COI partner since it is kinda the 'empty' space between Flint, the Tri-Cities, Lansing, and The Detroit Exurbs. If you stick Shiawaasee in the Lansing seat on my map, you trade it for bits out of the south, something I wished to avoid. If you however put it with the 5th and the cities seat, then you get a less obtuse map, though you so add a cut. It also opens discussion of whether those southern towns in Gennessee are part of the Detroit exurbs or the Flint region.

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Here's what it looks like overall.

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EastAnglianLefty does have a good question about the thumb+upland seat, but I tend to think that the CD1 on this map is a viable answer to said question. The seat puts two COI's together: the upstate and the non-urban west Coast, allowing the fourth to work.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 19, 2020, 01:50:54 PM
I think that's a significant improvement, though it's hard to tell how closely Bay City is being cut. I was hoping by putting Shiawassee in the Lansing seat you could pull the Lansing seat south from Mount Pleasant, though, which is a long northern appendage now (though I suppose I see the reasoning behind putting a smaller college town with Lansing). Ultimately Shiawassee is fine with either Flint or Lansing, though. I don't love it with Detroit exurbs, though, because Shiawassee has an interstate connection to both Lansing and Flint (and so has some exurbs of each on the edges) but doesn't have any highway connection to Livingston County.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 19, 2020, 01:59:30 PM
It looks like quite a tight cut on Bay City. Given that there isn't a bridge over the Saginaw north of there and the 4th hence can't be contiguous by road whatever you do, you may as well do a looser cut.

Regarding Mt Pleasant, I still think the solution is to shift Jackson into the sixth (making it more compact), send the Lansing district into Montcalm and Ionia (as they're not that closely linked to GR), stick eastern Ottawa into the 3rd (as that is closely linked to GR) then re-align the boundary between the 2nd and the 6th (which should allow you to keep most of Michiana together.)



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 19, 2020, 02:02:20 PM
I think that's a significant improvement, though it's hard to tell how closely Bay City is being cut. I was hoping by putting Shiawassee in the Lansing seat you could pull the Lansing seat south from Mount Pleasant, though, which is a long northern appendage now (though I suppose I see the reasoning behind putting a smaller college town with Lansing).

Yes the point of this 7th was the college town COI. The idea was to pair Lansing (a clear college city) with Mt. Pleasant and Albion which are also obvious college towns in mid-michigan. So it's naturally going to be perpendicular, like I said the maps goals made it strange.

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Also it pays to keep an eye on the Bay county towns if the county is getting cut. In this map it's all of frankenlurst, Bay City, and Midland, plus a bit for pop equity. On the other map it adds monitor, Auburn, and Williams, along with a precinct for pop.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 19, 2020, 08:26:53 PM
So after everyone discussed COIs a while back, I decided to explore a map that was mainly based on COIs. It ended up unusual. The 'guiding' districts in this case were CD5 which has all of the tri-cities and Flint, CD4 which crosses the Saginaw river to link the Thump and the Upstate, CD1 which actually gets all of the non-urbanized west coast, and CD7 which puts all the notable central MI college towns together. CD9 gets the Grosse Pointe's because their local lines cross the border of Wayne and Macomb. One of the AA seats has all the arabs, as I tend to prefer when possible. The main victim of the mid-state getting their COI's is CD8, but it isn't affected too much as far as pop distribution is concerned.

Trump won 7 seats when he won by less than 1%. When whitmer won by 10% she no only got the 6 Clinton seats and the swingy Macomb seat, she also got the Grand Rapids seat by <3K votes.

https://davesredistricting.org/join/c7f30e42-14ef-444d-a14b-2e7b25639720

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The GR district should go into Ottawa, not rural areas to the east.  Also, D-8 can be kept within Livingston and Oakland.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 20, 2020, 10:41:04 AM
It will be interesting to see what the dynamic of the commission will be.

Justin Leavitt made a presentation to the the selection panel in California, in which he said one of the main skills that commissioners should have is the ability to question their lawyers and demographers and other experts.

In Michigan, the commissioners are going to be drawn by lottery, with almost zero screening. Michigan does not have partisan registration, and party selection in primary elections is secret. Yet the commissioners are expected to declare a party affiliation and be selected on that basis.

The SOS who is in charge of the lottery added a couple of optional questions, letting an applicant explain why they considered themselves affiliated with a party, and why they wanted to serve on the commission. Each of the four legislative leaders may make 5 strikes  from a randomly selected pool of 200 (60D, 60R, and 80I).

Remember they won't be choosing commissioners, they will be knocking potential commissioners. If you are a Republican leader who do you go after? Some independents who you think might be biased? Some Democrats who you think might be forceful leaders. No doubt they will try to do some background checks, but even if you work with the other leader of your party, you can only take out 10 of 200.

The commission of 13 total strangers of varying competence will be expected to choose a lawyer and mapping specialists, and arrange hearings, etc. The SOS is designated as the secretary of the commission. Will they be susceptible to being led?

I mentioned this in my original writeup. White there is some degree of self-selection, you need to respond to the SoS's mailed invitation, and said self-selection will trend towards 'professionals' with the time and knowledge to commit to their potential undertaking, it will lead to a more random and fragmented selection than in CA. This could very well lead to cliques of councilors forming, a handful of individuals dominating the commission, or potential 'guidance' from the SoS. However, it's most likely to result in individuals committed to their preconceived COIs from their region of the state, and therefore will only approve maps that conform to those guidelines, along with the most vocal of public input.

Your original statement says that the SOS will "select" the 200 persons in the final pool.

This is not true. The 200 finalists will be chosen to match state demographics (e.g. 36 from Wayne, 24 from Oakland, 17 from Macomb, 12 from Kent, etc. Perhaps below this level, the selection will be by region. It will likely be sex- and race-, and ethnicity-stratified. It may be age-stratified. While applications are available in Arabic, there is no way to indicate this on the application (if someone applies in Arabic can they really participate on the commission - will there have to be translation?).

It is unknown how political balancing will be done. Logically, a larger share of the Democratic pool will be Blacks from Detroit.

Half of the 200 will be chosen from those who applied on their own. This may lead to more professional applicants. The other 100 will be chosen from those who responded to the mailout to 250,000 random Michigan voters. That should be 45,500 in Wayne. If 1% respond, that is 2500 persons. There is going to be a lot of non-professionals.

In California, there were 21,004 original applicants. This was reduced to 17,090 after an initial cursory screening. 2,206 completed a supplemental application that included essay questions, 2,003 also provided letters of recommendation. 90% of initial applicants went away after it started looking like a job application.

In Michigan there is nothing like the supplemental application. The hardest part is that the application must be notarized, but 100s of notaries have volunteered to do this for free. The only barrier is that some people have never been before a notary. The pool in Michigan is going to be a lot more like that initial 21,000 who applied, rather than the 2000 that bothered to fill out a full application with essay questions and recommendations.

The applicant pool in California was reduced from 2003 to 685 in November based on reading the applications by the 3 auditors and their staffs of the Auditor Review Panel, who on average recommended 367 applicants by each panelist. A second screening reduced the 685 to 342, with each panelist recommending an average of 230 individuals.

The current process is to reduce the pools to 40 Democrats, 40 Republicans, and 40 other, who will be called in for interviews. The ARP is meeting this week to do that. This latest screening includes background checks and requires a statement of financial interests.

These 120 will be reduced to 60 after the interviews. The four legislative leaders may each strike 2 applicants from each subpool of 20, potentially reducing them to 12 each. 8 members (3R, 3D, and 2O) will be drawn randomly from the three pools. The other 6 members will be chosen by this initial 8. Austin used a similar process. Their random drawing produced an almost entirely Hispanic panel, which had to pick Anglos to balance the commission.

In Michigan, the SOS will randomly draw, though stratified, pools of 60R, 60D, and 80O. These will in turn be split in two subpools of 30 from voluntary applicants and 30 from the 250,000 solicited voters.

The legislative leaders will be able to strike 5 each from the total pool of 200. They will be doing this largely blind other than what they can garner from investigation by the political parties.

The final drawing of 13. While a naive assumption would be that there would be one commissioner from the region of each potential congressional district, this is quite unlikely.

In Michigan you have the additional difficulty that there is no partisan registration, and party selection in primaries is anonymous. Are Sanders supporters necessarily Democrats? Are Trump supporters necessarily Republican?

It is entirely wishful thinking that the Michigan commissioners will be particularly competent or representative of the state as a whole.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 20, 2020, 10:48:25 AM
As it happens, I just finished drawing a similar map based off a district jumping over the Saginaw River:

https://davesredistricting.org/join/38383e2f-7132-4b5e-89b0-7b8c8bdcd477

The major differences to Oryxslayer's map are that Shiawassee goes in the Lansing district and Jackson mostly in the Kalamazoo district and that Grand Rapids district goes west instead of east.

Clinton wins six districts in this map, but two of them only narrowly. Obama carried ten of them in 2008 (though not the Grand Rapids district, which these days is probably the seventh best Democratic prospect.)

I think this map has some positives to it, but overall I think it shows the problem of a Thumb/Huron Shore district, which is that the two areas aren't really big enough for a congressional district. To get the necessary population, you either need to reach into exurban Macomb, or the Tri-Cities area, or well into the interior of northern Michigan, or some combination thereof. And if you're going to do that, why not just go the whole hog and tack the two areas on to separate districts?
How much population is north of Muskegon-Kent-Clinton-Midland-Bay? Can you get two districts, even coming further south without touching those urban counties.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 20, 2020, 10:54:20 AM
As it happens, I just finished drawing a similar map based off a district jumping over the Saginaw River:

https://davesredistricting.org/join/38383e2f-7132-4b5e-89b0-7b8c8bdcd477

The major differences to Oryxslayer's map are that Shiawassee goes in the Lansing district and Jackson mostly in the Kalamazoo district and that Grand Rapids district goes west instead of east.

Clinton wins six districts in this map, but two of them only narrowly. Obama carried ten of them in 2008 (though not the Grand Rapids district, which these days is probably the seventh best Democratic prospect.)

I think this map has some positives to it, but overall I think it shows the problem of a Thumb/Huron Shore district, which is that the two areas aren't really big enough for a congressional district. To get the necessary population, you either need to reach into exurban Macomb, or the Tri-Cities area, or well into the interior of northern Michigan, or some combination thereof. And if you're going to do that, why not just go the whole hog and tack the two areas on to separate districts?
How much population is north of Muskegon-Kent-Clinton-Midland-Bay? Can you get two districts, even coming further south without touching those urban counties.

Assuming that you treat Gratiot and Ionia as the rest of the boundary, just under 1.2m people according to the 2016 estimates. So not that much more than a district and a half.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on February 20, 2020, 11:31:23 AM
()

My latest iteration (this time with 2016 populations) -- you can have a reasonable pan-Huron district if you just keep all of Bay.  The Flint district takes Midland and was won by Clinton.  The Lansing-Mt. Pleasant district is fairly coherent, Trump won here by less than a point.  Muskegon down to Benton Harbor/St. Joseph is coherent, Kalamazoo-Battle Creek-Jackson works well, and Monroe is paired with southern Wayne rather than counties to its west.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: palandio on February 20, 2020, 01:57:25 PM
Monroe + Southern Wayne is a pairing that seems very natural to me and I was wondering why it was so rare in the maps that were posted so far.

The challenge I can see is to draw a Monroe + Southern Wayne district without splitting the Middle Eastern communities in e.g. Dearborn, Livonia and other areas.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on February 20, 2020, 02:15:47 PM
What areas of Wayne besides Dearborn have the highest concentrations of Arab-Americans? 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on February 20, 2020, 03:15:37 PM
What areas of Wayne besides Dearborn have the highest concentrations of Arab-Americans? 

IIRC there are fair few Yemenis in Hamtramck.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 20, 2020, 03:26:45 PM
Monroe + Southern Wayne is a pairing that seems very natural to me and I was wondering why it was so rare in the maps that were posted so far.

The challenge I can see is to draw a Monroe + Southern Wayne district without splitting the Middle Eastern communities in e.g. Dearborn, Livonia and other areas.

Monroe is funny. The population along the border with Wayne is quite low. Most of the population is in the southern part of the county and consists of suburbs/exurbs of Toledo (over the border in Ohio), plus the small city of Monroe itself. There is some outer Detroit metro spillover in the north of the county, but it doesn't pair naturally with inner suburbs deep in Wayne. It pairs much better with Washtenaw, which is also an area connected to but peripheral to the Detroit metro.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 20, 2020, 03:34:54 PM
What areas of Wayne besides Dearborn have the highest concentrations of Arab-Americans? 

IIRC there are fair few Yemenis in Hamtramck.

I'm not sure Hamtramck is Muslim Majority, Wikipedia metions that it's city council is. Even though the Bengali and Pakistani Muslims are different from their Arab cousins, I'm sure they would prefer to be together rather than cracked between the AA seat. This is why I always reach an arm in there for my MI-12/13s. Heading west you got some in Livonia and the other townships in that western line (Redford, Plymouth, etc), though they are more of an Arab Christian Descent.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 20, 2020, 04:45:26 PM
What areas of Wayne besides Dearborn have the highest concentrations of Arab-Americans? 

IIRC there are fair few Yemenis in Hamtramck.

I'm not sure Hamtramck is Muslim Majority, Wikipedia metions that it's city council is. Even though the Bengali and Pakistani Muslims are different from their Arab cousins, I'm sure they would prefer to be together rather than cracked between the AA seat. This is why I always reach an arm in there for my MI-12/13s. Heading west you got some in Livonia and the other townships in that western line (Redford, Plymouth, etc), though they are more of an Arab Christian Descent.

()
This seems like a useful image.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on February 20, 2020, 05:36:08 PM
So other than Dearborn and Dearborn Heights (and maybe Hamtramck if you can manage it) it doesn't seem to be worth it to try to connect any other particular town for the sake of the Arab Americans?

Monroe doesn't naturally belong with Dearborn but the outer portions of Wayne would seem to be just fine; better that than rural counties to the west.  I don't see what it really has to do with a college town like Ann Arbor other than "somewhat outside Detroit". 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 20, 2020, 06:56:59 PM
As it happens, I just finished drawing a similar map based off a district jumping over the Saginaw River:

https://davesredistricting.org/join/38383e2f-7132-4b5e-89b0-7b8c8bdcd477

The major differences to Oryxslayer's map are that Shiawassee goes in the Lansing district and Jackson mostly in the Kalamazoo district and that Grand Rapids district goes west instead of east.

Clinton wins six districts in this map, but two of them only narrowly. Obama carried ten of them in 2008 (though not the Grand Rapids district, which these days is probably the seventh best Democratic prospect.)

I think this map has some positives to it, but overall I think it shows the problem of a Thumb/Huron Shore district, which is that the two areas aren't really big enough for a congressional district. To get the necessary population, you either need to reach into exurban Macomb, or the Tri-Cities area, or well into the interior of northern Michigan, or some combination thereof. And if you're going to do that, why not just go the whole hog and tack the two areas on to separate districts?
How much population is north of Muskegon-Kent-Clinton-Midland-Bay? Can you get two districts, even coming further south without touching those urban counties.

Assuming that you treat Gratiot and Ionia as the rest of the boundary, just under 1.2m people according to the 2016 estimates. So not that much more than a district and a half.

I was wondering whether it is even possible to draw two districts, where the largest L.P. city is Traverse City (but I see even that would exclude Mt.Pleasant). But if we wanted to make those two the largest cities are we still short?

If so, then there may be three acceptable options:

(1) Take Muskegon (the UP district then goes down the Huron shore)
(2) Take Midland and ... (accept that are combining COI)
(3) Sneak across to take the thumb (but I'm not too keen on going down to St.Clair) which will be a significant chunk of the population).

Not-acceptable.
(4) Into Kent
(5) Into Clinton


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 20, 2020, 07:13:39 PM
Monroe + Southern Wayne is a pairing that seems very natural to me and I was wondering why it was so rare in the maps that were posted so far.

The challenge I can see is to draw a Monroe + Southern Wayne district without splitting the Middle Eastern communities in e.g. Dearborn, Livonia and other areas.
Historically, Monroe has stronger ties to Toledo than it does Detroit. Toledo is on the Ohio line, while Detroit is on the northern Wayne line or has grown out to it. You can't go directly south from the center of Detroit without going into Canada. Detroit has generally grown more to the north than to the west, or southwest.

Practically, if you are trying to keep whole counties, it may be easier to exclude Monroe, St.Clair and Livingston if you want equal population districts (that is, you start with Wayne, Oakland, and Macomb) and determine the whole number of districts, and add in others to complete the last district.

Monroe is either flexible, or not significant a COI to be treated as other than X people.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 20, 2020, 11:10:21 PM
Since we are on the topic of Arab communities, I decided to go download the latest ACS data and see for myself what the present lay of the ground is. Here is a map of all people claiming Mid-Eastern descent in the metro - not just Arabs but Turks, Iranians, and others that would prefer being in the arab seat to anywhere else. Compared to the more limited view shown above, the Larger Arab pockets in Dearborn, Dearborn heights and Hamtramk have expanded. This is mainly because of the turnover since then, Arabs moving in and the older residents moving out. The map though also captures the Arab Christians that I mentioned earlier to the west of Dearborn - Assyrians, Lebanese, and others who may be missed by a more limited scope. If we are solely confining the Arab or Arab+AA seat to Wayne, and preventing it from tendrilling into the suburbs, then those western towns are the next best additions. There is this idea of doing parallel cuts into Oakland, so that the Arab seat can grab more Arabs and the AA seat grabs Pontiac, however such things appear to be banned by the commission.

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 21, 2020, 09:49:46 AM
As it happens, I just finished drawing a similar map based off a district jumping over the Saginaw River:

https://davesredistricting.org/join/38383e2f-7132-4b5e-89b0-7b8c8bdcd477

The major differences to Oryxslayer's map are that Shiawassee goes in the Lansing district and Jackson mostly in the Kalamazoo district and that Grand Rapids district goes west instead of east.

Clinton wins six districts in this map, but two of them only narrowly. Obama carried ten of them in 2008 (though not the Grand Rapids district, which these days is probably the seventh best Democratic prospect.)

I think this map has some positives to it, but overall I think it shows the problem of a Thumb/Huron Shore district, which is that the two areas aren't really big enough for a congressional district. To get the necessary population, you either need to reach into exurban Macomb, or the Tri-Cities area, or well into the interior of northern Michigan, or some combination thereof. And if you're going to do that, why not just go the whole hog and tack the two areas on to separate districts?
How much population is north of Muskegon-Kent-Clinton-Midland-Bay? Can you get two districts, even coming further south without touching those urban counties.

Assuming that you treat Gratiot and Ionia as the rest of the boundary, just under 1.2m people according to the 2016 estimates. So not that much more than a district and a half.

I was wondering whether it is even possible to draw two districts, where the largest L.P. city is Traverse City (but I see even that would exclude Mt.Pleasant). But if we wanted to make those two the largest cities are we still short?

If so, then there may be three acceptable options:

(1) Take Muskegon (the UP district then goes down the Huron shore)
(2) Take Midland and ... (accept that are combining COI)
(3) Sneak across to take the thumb (but I'm not too keen on going down to St.Clair) which will be a significant chunk of the population).

Not-acceptable.
(4) Into Kent
(5) Into Clinton


Option 1 is probably not feasible - if you add Muskegon, Ionia and Gratiot to the northern group then you're still short about 50k from the necessary population for two seats, so you need to reach into the fringes of Ottawa/Kent/Clinton/Midland/Bay or some combination thereof to get the numbers up. And if the 1st district is going right down to Muskegon, then there's only room for the LP part of it to be one county wide (and even then you need to lose 10k people.)

Option 3 is also cutting a COI, because whilst you can draw a map putting Bay City in with Flint and the rest of Tri-Cities, realistically it's probably not going to happen because of the road contiguity issue.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on February 21, 2020, 01:34:10 PM
As it happens, I just finished drawing a similar map based off a district jumping over the Saginaw River:

https://davesredistricting.org/join/38383e2f-7132-4b5e-89b0-7b8c8bdcd477

The major differences to Oryxslayer's map are that Shiawassee goes in the Lansing district and Jackson mostly in the Kalamazoo district and that Grand Rapids district goes west instead of east.

Clinton wins six districts in this map, but two of them only narrowly. Obama carried ten of them in 2008 (though not the Grand Rapids district, which these days is probably the seventh best Democratic prospect.)

I think this map has some positives to it, but overall I think it shows the problem of a Thumb/Huron Shore district, which is that the two areas aren't really big enough for a congressional district. To get the necessary population, you either need to reach into exurban Macomb, or the Tri-Cities area, or well into the interior of northern Michigan, or some combination thereof. And if you're going to do that, why not just go the whole hog and tack the two areas on to separate districts?
How much population is north of Muskegon-Kent-Clinton-Midland-Bay? Can you get two districts, even coming further south without touching those urban counties.

Assuming that you treat Gratiot and Ionia as the rest of the boundary, just under 1.2m people according to the 2016 estimates. So not that much more than a district and a half.

I was wondering whether it is even possible to draw two districts, where the largest L.P. city is Traverse City (but I see even that would exclude Mt.Pleasant). But if we wanted to make those two the largest cities are we still short?

If so, then there may be three acceptable options:

(1) Take Muskegon (the UP district then goes down the Huron shore)
(2) Take Midland and ... (accept that are combining COI)
(3) Sneak across to take the thumb (but I'm not too keen on going down to St.Clair) which will be a significant chunk of the population).

Not-acceptable.
(4) Into Kent
(5) Into Clinton


Option 1 is probably not feasible - if you add Muskegon, Ionia and Gratiot to the northern group then you're still short about 50k from the necessary population for two seats, so you need to reach into the fringes of Ottawa/Kent/Clinton/Midland/Bay or some combination thereof to get the numbers up. And if the 1st district is going right down to Muskegon, then there's only room for the LP part of it to be one county wide (and even then you need to lose 10k people.)

Option 3 is also cutting a COI, because whilst you can draw a map putting Bay City in with Flint and the rest of Tri-Cities, realistically it's probably not going to happen because of the road contiguity issue.

You could go into Barry County from Ionia. That's messy and dipping pretty far south, but Barry County is enough to make up the difference and is pretty rural.

That said, I'm not sure why Muskegon would be preferable to Midland and/or Bay. Muskegon is a bigger metro than either.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on February 21, 2020, 01:57:33 PM
Midland has been in districts with at least part of northern Michigan since at least the 1970s redistricting, so presumably there wouldn't be that much resistance locally.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 21, 2020, 04:18:19 PM
Since we are on the topic of Arab communities, I decided to go download the latest ACS data and see for myself what the present lay of the ground is. Here is a map of all people claiming Mid-Eastern descent in the metro - not just Arabs but Turks, Iranians, and others that would prefer being in the arab seat to anywhere else. Compared to the more limited view shown above, the Larger Arab pockets in Dearborn, Dearborn heights and Hamtramk have expanded. This is mainly because of the turnover since then, Arabs moving in and the older residents moving out. The map though also captures the Arab Christians that I mentioned earlier to the west of Dearborn - Assyrians, Lebanese, and others who may be missed by a more limited scope. If we are solely confining the Arab or Arab+AA seat to Wayne, and preventing it from tendrilling into the suburbs, then those western towns are the next best additions. There is this idea of doing parallel cuts into Oakland, so that the Arab seat can grab more Arabs and the AA seat grabs Pontiac, however such things appear to be banned by the commission.

()
West Macomb is a surprise, must be Christians.  Arabs are very divided by religion.  Arab Christians and Muslims wouldn't make a COI, about as much if a COI as jews and muslms lol.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 22, 2020, 01:50:48 AM
Since we are on the topic of Arab communities, I decided to go download the latest ACS data and see for myself what the present lay of the ground is. Here is a map of all people claiming Mid-Eastern descent in the metro - not just Arabs but Turks, Iranians, and others that would prefer being in the arab seat to anywhere else. Compared to the more limited view shown above, the Larger Arab pockets in Dearborn, Dearborn heights and Hamtramk have expanded. This is mainly because of the turnover since then, Arabs moving in and the older residents moving out. The map though also captures the Arab Christians that I mentioned earlier to the west of Dearborn - Assyrians, Lebanese, and others who may be missed by a more limited scope. If we are solely confining the Arab or Arab+AA seat to Wayne, and preventing it from tendrilling into the suburbs, then those western towns are the next best additions. There is this idea of doing parallel cuts into Oakland, so that the Arab seat can grab more Arabs and the AA seat grabs Pontiac, however such things appear to be banned by the commission.

()
West Macomb is a surprise, must be Christians.  Arabs are very divided by religion.  Arab Christians and Muslims wouldn't make a COI, about as much if a COI as jews and muslms lol.
Sterling Heights apparently has a large Chaldean population (Iraqi Christians).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 22, 2020, 02:04:41 AM
Map: The Geography of Arab Detroit (https://detroitography.com/2018/06/13/map-the-geography-of-arab-detroit/)

Map in above article shows concentrations of population.

Hamtramck is interesting since at one time it was about 90% Polish, while Highland Park was almost 100% Black.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: voice_of_resistance on February 22, 2020, 05:18:56 PM
Here is my take on a 13-district Michigan:
https://davesredistricting.org/join/cf3b2fa2-7fcd-4b0d-adeb-6347e4ef6b63 (https://davesredistricting.org/join/cf3b2fa2-7fcd-4b0d-adeb-6347e4ef6b63)

Tries to preserve COIs, but the breakdown is as follows:

MI-01: Northern Michigan, Trump +21, Safe R
MI-02: Muskegon and the remnant of current MI-04, Trump +18, Safe R
MI-03: Grand Rapids, Ionia/Barry/Montcalm, Trump +9, Lean R
MI-04: Lansing, Saginaw, and rural areas in between, Clinton +5, Lean D
MI-05: Flint, Livingston, Western Oakland, Trump +9, Tossup
MI-06: Kalamazoo, SW Michigan, inland Ottawa County, Trump +14, Likely R
MI-07: Monroe County, Indiana border, Trump +23, Safe R
MI-08: Pontiac, Troy, West Bloomfield, southern Oakland, Clinton +12, Likely D
MI-09: southern Macomb County, Trump +9, Tossup
MI-10: northern Macomb, NE Oakland, the Thumb, and Bay City, Trump +29, Safe R
MI-11: Washtenaw and western Wayne, Clinton +21, Safe D
MI-12: Wyandotte, Romulus, central Wayne County, 45.6% black, Clinton +46, Safe D
MI-13: downtown Detroit, 56.3% black, Clinton +67, Safe D

Overall, I think this map has an ample amount of competitive districts. Districts 1, 2, 3, 6, 7, and 10 should likely go to the GOP. Districts 4, 5, and 9 are competitive but should be winnable for the right Dem (Levin, Kildee, the Macomb executive, etc). Districts 8, 11, 12, and 13 are all solid D holds. Overall, this leads to a 4D-3C-6R spread, which would roughly average out to 6D-7R or 7D-6R. Trends as well will make the 4/5/9 combo, as well as MI-3 and to a lesser extent MI-6 competitive.




Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on February 23, 2020, 12:22:14 AM
Here is my take on a 13-district Michigan:
https://davesredistricting.org/join/cf3b2fa2-7fcd-4b0d-adeb-6347e4ef6b63 (https://davesredistricting.org/join/cf3b2fa2-7fcd-4b0d-adeb-6347e4ef6b63)

Tries to preserve COIs, but the breakdown is as follows:

MI-01: Northern Michigan, Trump +21, Safe R
MI-02: Muskegon and the remnant of current MI-04, Trump +18, Safe R
MI-03: Grand Rapids, Ionia/Barry/Montcalm, Trump +9, Lean R
MI-04: Lansing, Saginaw, and rural areas in between, Clinton +5, Lean D
MI-05: Flint, Livingston, Western Oakland, Trump +9, Tossup
MI-06: Kalamazoo, SW Michigan, inland Ottawa County, Trump +14, Likely R
MI-07: Monroe County, Indiana border, Trump +23, Safe R
MI-08: Pontiac, Troy, West Bloomfield, southern Oakland, Clinton +12, Likely D
MI-09: southern Macomb County, Trump +9, Tossup
MI-10: northern Macomb, NE Oakland, the Thumb, and Bay City, Trump +29, Safe R
MI-11: Washtenaw and western Wayne, Clinton +21, Safe D
MI-12: Wyandotte, Romulus, central Wayne County, 45.6% black, Clinton +46, Safe D
MI-13: downtown Detroit, 56.3% black, Clinton +67, Safe D

Overall, I think this map has an ample amount of competitive districts. Districts 1, 2, 3, 6, 7, and 10 should likely go to the GOP. Districts 4, 5, and 9 are competitive but should be winnable for the right Dem (Levin, Kildee, the Macomb executive, etc). Districts 8, 11, 12, and 13 are all solid D holds. Overall, this leads to a 4D-3C-6R spread, which would roughly average out to 6D-7R or 7D-6R. Trends as well will make the 4/5/9 combo, as well as MI-3 and to a lesser extent MI-6 competitive.



Finally, a Dem who draws fair districts.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 23, 2020, 12:48:01 PM
These are my population projections for 2020. Two annual change estimates were made. One was based on the 2010 Census (adj base) to the 2018 estimate (8.25 years), and the other from the 2016 estimate to the 2018 estimate (2 years). Linear growth was assumed in both cases. The two estimates were averaged, and projected forward from the 2018 estimate for 1.75 additional years. Given the slow growth of the state, they can be considered to be largely the 2018 estimate with an additional tweak.

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Michigan has 14 Regional Council of Governments, covering the entire state except for Barry. Some have an obvious focus (Detroit, Lansing, Grand Rapids, Kalamazoo), others tend to be simple groupings of nearby counties.

Region II (Lenawee, Hillsdale, and Jackson) apparently never came up with a name for their region. GLS is based on the initial letter of Genesee, Lapeer, and Shiawassee, with the latter two in the group because they are adjacent to Genesee and don't fit with any other group. Barry may have been in the West Michigan RCOG, but finds itself between Grand Rapids, Lansing, and Kalamazoo.

The numbering of the West Michigan Shore RCOG suggests that it broke off from the West Michigan RCOG, perhaps concerned about Grand Rapids dominance.

The RCOG's have a scale somewhat similar to congressional districts, and reflect a COI which is recognized at least at the local government level (both the federal and state governments provide incentives for regional planning.

It happens that they can be grouped in super regions with populations equivalent to a congressional districts.

North: 3 RCOG in the UP (WUP, CUP, EUP), and two in LP (NW and NE) 0.959 districts.

West: West Michigan and West Michigan shore: 2.030 districts. One Grand Rapids based, and the other the remainder.

Southwest: SW, SC, and Barry: 1.101 (Barry placed in this group because it had the lowest excess over a whole district).

Central: Tri-County (Lansing) and Region II (Jackson, etc.): 1.022.

East: East (Tri-Cities, Thumb, etc.) 0.973.

Southeast: SE (Detroit) and GLS (Flint) 6.913 7 districts.

The three eastern areas: North 0.959, East 0.973, and Southeast 6.913, are underpopulated, while the three western areas: West 2.030, Southwest 1.101, and Central are overpopulated. Counties will need to be shifted. It may be possible to get the districts within acceptable limits by shifting counties.

The Michigan Constitution requires that congressional "[d]istricts shall be of equal population as mandated by the United States constitution." The mandate is as interpreted by the SCOTUS, most recently in Tennant v Jefferson County.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on February 23, 2020, 01:13:45 PM

Very very interesting. To start off with Flint+Tri-Cities whole counties is 1.01100 quotas, or about only 7k excess population.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 24, 2020, 12:45:06 AM
This shows grouping of RCOG's into areas equivalent to a whole number of CD's.

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 25, 2020, 06:24:27 PM
To get the regions closer to an whole number of representatives we need to shift some counties. The greater southeastern region (Detroit, Flint, and Ann Arbor) is short about 0.087 of the population needed for 7 districts.

There are three plausible options.
(1) Move Lenawee into the region.
(2) Move Sanilac and Huron into the region.
(3) Move Sanilac, Huron, and Tuscola into the region, and Shiawassee out.

This map explores the first option

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Lenawee in the past has been included in the Ann Arbor metropolitan area, so it has some community of interest.

Elsewhere Barry is added to the Lansing-based central district. Barry is a free-agent not belonging to any RCOG. The district is not ideally compact, but forms an area between Detroit, Grand Rapids, and Kalamazoo.

The southwest area consisting of two RCOG's is unchanged and quite compact. It places Kalamazoo and Battle Creek in the same district.

Mason and Alcona were shifted for population balance. Otherwise the northern district consists of five RCOG's and the eastern district of one RCOG.

The western two RCOG's were divided into two CD's. Kent was placed with Allegan to avoid dividing counties. Any Grand Rapids district is going to be an imperfect representation of the city and its surroundings. You could go east from Kent adding in more rural areas, but Grand Rapids is distinctly in the western part of the county and somewhat southerly. Or you could go into suburban areas in Ottawa, but that divides the county and requires a slender connection.

In the greater southeastern area, St.Clair is added to a Flint-based district. St.Clair, particularly Port Huron is distinct from the Detroit core, and is needed for population balance.

On the west, Livingston, Lenawee, and Monroe are added to Washtenaw. Livingston and Lenawee have in the past been part of the Ann Arbor metropolitan area.

This leaves the inner three MOW counties with about 5 districts. Counties were always going to be split in this area.

Overall population equality is good (-1.6%, -1.4%, -2.2%, +1.5% +2.1%, (+4.0%/7 = 0.6%). If further refinement is needed by dividing counties, only round 75,000 persons need to be victimized.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 26, 2020, 04:20:49 PM
This alternative shifts Sanilac and Huron to the southeastern region rather than Lenawee

()

The central district (Lansing-Jackson) no longer needs adjustment so Barry is added to the western Michigan area.

Taking of Sanilac and Huron forces the eastern district (Tri-Cities) westward. This results in Barry and Ionia being added to the Grand Rapids (Kent) district, since they would be cut off otherwise.

In the southeast, the Ann Arbor district will need to pull in some population from far western or southern Wayne.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 29, 2020, 10:21:51 AM
Number of interested applicants has risen to 6K.



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: RussFeingoldWasRobbed on April 14, 2020, 05:42:46 PM
So after everyone discussed COIs a while back, I decided to explore a map that was mainly based on COIs. It ended up unusual. The 'guiding' districts in this case were CD5 which has all of the tri-cities and Flint, CD4 which crosses the Saginaw river to link the Thump and the Upstate, CD1 which actually gets all of the non-urbanized west coast, and CD7 which puts all the notable central MI college towns together. CD9 gets the Grosse Pointe's because their local lines cross the border of Wayne and Macomb. One of the AA seats has all the arabs, as I tend to prefer when possible. The main victim of the mid-state getting their COI's is CD8, but it isn't affected too much as far as pop distribution is concerned.

Trump won 7 seats when he won by less than 1%. When whitmer won by 10% she no only got the 6 Clinton seats and the swingy Macomb seat, she also got the Grand Rapids seat by <3K votes.

https://davesredistricting.org/join/c7f30e42-14ef-444d-a14b-2e7b25639720

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Correct me if I'm wrong but it looks like you put Moolenar, Kildee, and Slotkin in the same district(5)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Skill and Chance on April 15, 2020, 02:23:20 PM
A 6th Circuit panel just unanimously upheld Michigan's redistricting commission against a federal constitutional challenge.  The panel was 1 Trump appointee and 2 Clinton appointees.  The Trump appointee wrote a concurrence that seemed to grant even stronger deference to Michigan and cited Roberts' comments from Rucho that seemed to bless state commissions.

I think the commission is safely in place going forward.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on April 15, 2020, 07:52:03 PM
https://www.michigan.gov/documents/sos/ICRC_Whos_applying_682238_7.pdf

just interesting stats
So the commission applicants are a decent bit whiter, they are also 60% male, and also much older than the average Michigan voter, but however 35% are Democrat to 15% Republican, doesn't really matter , just really hillarious its the most Republican Demographic but most partisan applicants are Democrats.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Skill and Chance on April 15, 2020, 08:39:07 PM
https://www.michigan.gov/documents/sos/ICRC_Whos_applying_682238_7.pdf

just interesting stats
So the commission applicants are a decent bit whiter, they are also 60% male, and also much older than the average Michigan voter, but however 35% are Democrat to 15% Republican, doesn't really matter .

So it's going to be a commission of former Woodstock attendees?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on April 16, 2020, 11:59:34 AM
https://www.michigan.gov/documents/sos/ICRC_Whos_applying_682238_7.pdf

just interesting stats
So the commission applicants are a decent bit whiter, they are also 60% male, and also much older than the average Michigan voter, but however 35% are Democrat to 15% Republican, doesn't really matter , just really hilarious its the most Republican Demographic but most partisan applicants are Democrats.
Michigan does not have partisan registration. Primary ballots have all parties on them. The voter selects a party anonymously and votes for candidates of that party.

An applicant can say whatever they want. The restrictions are so tight, on political involvement anyone with any sort of overt political activity might be excluded.

Anyhow when the random pools are selected, they will be weighted.

IIUC, a "Republican" will be weighted by 30/15, a Democrat by 30/35, and an unaffiliated by 40/50.

Weighting will also be done for sex, race, age, and geographical area.

The age weightings are not based on the age categories shown, but are off by 10 years. So the 55+ group will tend to be heavy in the 65+1, the 35-55 group by those in the 45-55 group, and the 35-and-under by those in their late 20s and 30s.

The geographic areas are Wayne; Southeast (which excludes Wayne, but includes Lansing and Jackson; Western; East Central: Flint, Thumb, and Tri-Cities; Northern L.P.; and U.P.
There are more applicants for Oakland alone than Wayne, and partisan hacks from Lansing might be drawn to represent the Detroit suburbs.

The commission has all the makings of a train wreck.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: I’m not Stu on April 26, 2020, 07:04:20 PM
With a Democratic governor, will the map be less hostile to Democrats?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on April 26, 2020, 07:40:45 PM
With a Democratic governor, will the map be less hostile to Democrats?

With the commission it's actually the Democratic SoS that matters more, at least that's how it looks now.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on August 02, 2020, 06:17:38 PM
Here's a link to a possible map; too lazy rn to screenshot, my apologies

https://davesredistricting.org/join/1f84b5fd-62f4-4f75-8320-484b0288b314


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on August 02, 2020, 08:13:02 PM
Here's a link to a possible map; too lazy rn to screenshot, my apologies

https://davesredistricting.org/join/1f84b5fd-62f4-4f75-8320-484b0288b314
GR should stay whole, and Ann Arbor goes with Wayne better than the Exurbs.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 02, 2020, 09:05:47 PM
Here's a link to a possible map; too lazy rn to screenshot, my apologies

https://davesredistricting.org/join/1f84b5fd-62f4-4f75-8320-484b0288b314
GR should stay whole, and Ann Arbor goes with Wayne better than the Exurbs.

Not really, Ann Arbor works ok with the 3 Western cities in Wayne but anything not part of the 2 VRA seats should be put with Monroe.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on August 02, 2020, 10:56:05 PM
Here's a link to a possible map; too lazy rn to screenshot, my apologies

https://davesredistricting.org/join/1f84b5fd-62f4-4f75-8320-484b0288b314
GR should stay whole, and Ann Arbor goes with Wayne better than the Exurbs.
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Monroe can be included too.   Wayne County basically has 2.5 districts at this point. 
Not really, Ann Arbor works ok with the 3 Western cities in Wayne but anything not part of the 2 VRA seats should be put with Monroe.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 02, 2020, 11:48:51 PM
Between 3 and 4 fix that unnecesary double cross.(just split 1 county)
Then I'd say put battle creek in the Kalamazoo district and  put all of Jackson with the Lansing district.  Dont really like the flint district but not sure how to fix it within your map.(would require a very large rotation)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on August 02, 2020, 11:51:55 PM
I don't care for the Ann Arbor-Livingston thing either, but my hand was kind of forced by drawing two majority (not plurality) Black districts, which will probably be done by the commission since it's still possible. That means the Dingell district has to take more of Wayne, and that's too much to still include Ann Arbor. I'd be happy to hear your suggestions, but I didn't want to f[inks] up the balance I got in the other part of the state by drawing Ann Arbor into 6th or whatever.

 I'd be happy to see a recommendation which has two majority Black districts and does nicer things with Ann Arbor though :)

Here's a link to a possible map; too lazy rn to screenshot, my apologies

https://davesredistricting.org/join/1f84b5fd-62f4-4f75-8320-484b0288b314
GR should stay whole

Grand Rapids is whole..


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 02, 2020, 11:53:14 PM
Tbf Ann Arbor doesn't really go well anywhere, the closest county in a cultural term is probably Ingham which splits 2 metroes and is also a GOP gerrymander.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on August 02, 2020, 11:59:12 PM
Tbf Ann Arbor doesn't really go well anywhere, the closest county in a cultural term is probably Ingham which splits 2 metroes and is also a GOP gerrymander.

It does have a certain Detroit metro aspect to it though, no? That said the closest cultural companions to Ann Arbor are Ferndale and co., who aren't exactly easy to put in a Washtenaw district either...


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on August 02, 2020, 11:59:41 PM
I don't care for the Ann Arbor-Livingston thing either, but my hand was kind of forced by drawing two majority (not plurality) Black districts, which will probably be done by the commission since it's still possible. That means the Dingell district has to take more of Wayne, and that's too much to still include Ann Arbor. I'd be happy to hear your suggestions, but I didn't want to f[inks] up the balance I got in the other part of the state by drawing Ann Arbor into 6th or whatever.

 I'd be happy to see a recommendation which has two majority Black districts and does nicer things with Ann Arbor though :)

Here's a link to a possible map; too lazy rn to screenshot, my apologies

https://davesredistricting.org/join/1f84b5fd-62f4-4f75-8320-484b0288b314
GR should stay whole

Grand Rapids is whole..
the metro


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 03, 2020, 12:09:58 AM
()

Opinion of this Oakland Macomb split?
Its not really partisan(both districts are Clinton +7 and Clinton +5. Making it more compact would just switch those numbers but I wanted a white collar vs blue collar split.

Its very ugly and would scream gerrymandered to idiots but I think it better represents the COI's of the north Detroit suburbs.)Grosse point is white collar but thats way too far away to "gerrymander" inside.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 03, 2020, 12:18:32 AM
I don't think the weird lines warrant the (crude) class separation.

I don't think its really worth it either just because of how ugly it is but was just gathering some ideas.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 03, 2020, 12:22:46 AM
I don't think the weird lines warrant the (crude) class separation.

I don't think its really worth it either just because of how ugly it is but was just gathering some ideas.

Also, if you want a "WWC district", you'd do better taking in more of Macomb then going after uber-yuppie Royal Oak of all places.

I avoided royal oak. the cities to the south of it are more working class. (also I consider Pontiac working class of course)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 𝕭𝖆𝖕𝖙𝖎𝖘𝖙𝖆 𝕸𝖎𝖓𝖔𝖑𝖆 on August 03, 2020, 12:38:34 AM
Uh, the idea of crude class-based redistricting sounds ugly.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 03, 2020, 12:41:02 AM
Uh, the idea of crude class-based redistricting sounds ugly.

 I mean different classes clearly have different interests? And its still within the same metro area etc. Again my version was too ugly but Im trying to cook up a reasonable version.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 03, 2020, 01:04:47 AM
()

Obviously violates the VRA but this is my non partisan map of the detroit metro that fits almost perfectly
Creates a nice downriver WWC+arab seat thats Clinton +4 but trending R. Lean D
Ann Arbor College town and upscale Wayne county suburbs. Clinton +25(Safe D)
Titanium D Clinton +90 Detroit seat.
Livingston + exurban oakland and Macomb(Trump +24) Safe R
Inner Oakland(Clinton +25) Safe D
Most of Macomb +7 Trump = lean to Likely R and trending right.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on August 03, 2020, 01:12:52 AM
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My take on a fair map.  For communities of interest, I mostly used metro areas and municipal/county borders.  2 black VRA seats+a black opportunity seat in the suburbs, 25% black.  But Levin would likely represent it.  In terms of partisan outcome, my map is decent if you take into account 2018 and 2012, but if 2016 trends continue, it would probably end up with 8 Republicans.  But who knows, Whitmer won the Flint/Thumb district so Kildee could survive there awhile. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 03, 2020, 01:25:02 AM
Did you split the tri county lansing metro Idaho?

Also for your northern 2 districts. Divide them east west. Don't put a cross lake district besides for the UP district.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on August 03, 2020, 01:29:07 AM
Did you split the tri county lansing metro Idaho?

Also for your northern 2 districts. Divide them east west. Don't put a cross lake district besides for the UP district.
https://davesredistricting.org/join/00ba0430-eccf-4ee4-9cb5-82090bd38e07
no it's kept together
and It's actually really hard to do it east/west, because of Muskegon and the road connection to the UP. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 03, 2020, 01:37:06 AM
Did you split the tri county lansing metro Idaho?

Also for your northern 2 districts. Divide them east west. Don't put a cross lake district besides for the UP district.
https://davesredistricting.org/join/00ba0430-eccf-4ee4-9cb5-82090bd38e07
no it's kept together
and It's actually really hard to do it east/west, because of Muskegon and the road connection to the UP.  

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Turns out we can make copies of maps now on DRA :)
Anyway made 2 edits to your map. Kept Kalamazoo whole and tried the East West thing. Not sure I like the split of Saginaw Bay and Flint into 3 separate districts. Its not a mega partisan gerrymander as you merely made Lansing Lean to Likely D from tossup and then made Flint Likely R from tossup. Whitmer lost the pink district 82 votes btw !. You did go for a light GOP gerrymander in Macomb with the black opportunity district but its not the worst idea as its still fairly compact.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on August 03, 2020, 02:05:07 AM
Did you split the tri county lansing metro Idaho?

Also for your northern 2 districts. Divide them east west. Don't put a cross lake district besides for the UP district.
https://davesredistricting.org/join/00ba0430-eccf-4ee4-9cb5-82090bd38e07
no it's kept together
and It's actually really hard to do it east/west, because of Muskegon and the road connection to the UP.  

()

Turns out we can make copies of maps now on DRA :)
Anyway made 2 edits to your map. Kept Kalamazoo whole and tried the East West thing. Not sure I like the split of Saginaw Bay and Flint into 3 separate districts. Its not a mega partisan gerrymander as you merely made Lansing Lean to Likely D from tossup and then made Flint Likely R from tossup. Whitmer lost the pink district 82 votes btw !. You did go for a light GOP gerrymander in Macomb with the black opportunity district but its not the worst idea as its still fairly compact.
I didn't think of connecting the UP to the east coast.  Honestly, I prefer my cut aesthetically but to each his own.  Keeping Kalamazoo whole is probably a good idea tho.  As for Macomb, yeah my cut slightly benefits the GOP, but Dems are already getting a safer suburban sea than they currently have while keeping Dingell safe, so if I cut northern Macomb rather than southern, basically every cut in the metro area would favor dems.  As for the tri cities, keeping them whole would complicate the rest of the map.  Either the thumb would need to go into Detroit suburbs or up way north, and also messes up sw MI. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 𝕭𝖆𝖕𝖙𝖎𝖘𝖙𝖆 𝕸𝖎𝖓𝖔𝖑𝖆 on August 03, 2020, 02:21:17 AM
()

Obviously violates the VRA but this is my non partisan map of the detroit metro that fits almost perfectly
Creates a nice downriver WWC+arab seat thats Clinton +4 but trending R. Lean D
Ann Arbor College town and upscale Wayne county suburbs. Clinton +25(Safe D)
Titanium D Clinton +90 Detroit seat.
Livingston + exurban oakland and Macomb(Trump +24) Safe R
Inner Oakland(Clinton +25) Safe D
Most of Macomb +7 Trump = lean to Likely R and trending right.

This is much nicer (of course except the Detroit sink, which one can recognize isn't quite right without even knowing what the VRA is)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on August 03, 2020, 03:49:42 AM
()

Obviously violates the VRA but this is my non partisan map of the detroit metro that fits almost perfectly
Creates a nice downriver WWC+arab seat thats Clinton +4 but trending R. Lean D
Ann Arbor College town and upscale Wayne county suburbs. Clinton +25(Safe D)
Titanium D Clinton +90 Detroit seat.
Livingston + exurban oakland and Macomb(Trump +24) Safe R
Inner Oakland(Clinton +25) Safe D
Most of Macomb +7 Trump = lean to Likely R and trending right.

If you combine the Downriver and Detroit districts, what's the black population? Just wondering if there's a viable east-west split there that keeps them both as VRA districts.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Former President tack50 on August 03, 2020, 07:35:24 AM
I decided to give this a try with a fair map and uh, here is what I got. Not really a fair map in terms of partisan outcome but the COIs seem reasonable?

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https://davesredistricting.org/join/9ed5b836-c557-4f51-ad5e-6c9199cf8098

MI-01: Trump+22, R+10 (Safe R)
MI-02: Trump+22, R+10 (Safe R)
MI-03: Trump+9, R+7 (Likely R)
MI-04: Trump+19, R+7 (Safe R)
MI-05: Trump+11, R+3 (Likely R)
MI-06: Trump+6, R+2 (Lean R)
MI-07: Clinton+8, D+4 (Likely D)
MI-08: Trump+4, R+2 (Tossup)
MI-09: Clinton+3, EVEN (Tossup)
MI-10: Trump+19, R+7 (Safe R)
MI-11: Trump+0, D+2 (Tossup)
MI-12: Clinton+58, D+29, 51% Black CVAP (Safe D)
MI-13: Clinton+52, D+28, 51% Black CVAP (Safe D)

4 Safe R
2 Likely R
1 Lean R
3 Tossup
1 Likely D
2 Safe D

For the sake of completeness, I will say that in the Governor race Whitmer gets all the Clinton districts plus the 5th (Flint), the 6th (Kalamazoo), the 8th (Lansing) and the 11th (Southern Detroit); getting in fact a majority of districts in the process (8/13)

However, Stabenow does not get a majority of districts as she only flipped the 11th and the 8th (for a total of 6/13)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on August 03, 2020, 10:42:48 AM
()

Obviously violates the VRA but this is my non partisan map of the detroit metro that fits almost perfectly
Creates a nice downriver WWC+arab seat thats Clinton +4 but trending R. Lean D
Ann Arbor College town and upscale Wayne county suburbs. Clinton +25(Safe D)
Titanium D Clinton +90 Detroit seat.
Livingston + exurban oakland and Macomb(Trump +24) Safe R
Inner Oakland(Clinton +25) Safe D
Most of Macomb +7 Trump = lean to Likely R and trending right.

If you combine the Downriver and Detroit districts, what's the black population? Just wondering if there's a viable east-west split there that keeps them both as VRA districts.

The Black population in that yellow seat is essentially negligible outside of River Rouge, Ecorse, Inkster, and Romulus, and none of those are a huge percentage of the population. So yeah, I'd imagine it may even be majority white? The Oakland county district might actually be Blacker since it has Southfield and Pontiac.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on August 03, 2020, 01:04:10 PM
()

Obviously violates the VRA but this is my non partisan map of the detroit metro that fits almost perfectly
Creates a nice downriver WWC+arab seat thats Clinton +4 but trending R. Lean D
Ann Arbor College town and upscale Wayne county suburbs. Clinton +25(Safe D)
Titanium D Clinton +90 Detroit seat.
Livingston + exurban oakland and Macomb(Trump +24) Safe R
Inner Oakland(Clinton +25) Safe D
Most of Macomb +7 Trump = lean to Likely R and trending right.

If you combine the Downriver and Detroit districts, what's the black population? Just wondering if there's a viable east-west split there that keeps them both as VRA districts.

The Black population in that yellow seat is essentially negligible outside of River Rouge, Ecorse, Inkster, and Romulus, and none of those are a huge percentage of the population. So yeah, I'd imagine it may even be majority white? The Oakland county district might actually be Blacker since it has Southfield and Pontiac.
sending both VRA seats into Oakland would be interesting.  But they can both be kept within Wayne, I think that's the best configuration


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 03, 2020, 01:07:20 PM
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Obviously violates the VRA but this is my non partisan map of the detroit metro that fits almost perfectly
Creates a nice downriver WWC+arab seat thats Clinton +4 but trending R. Lean D
Ann Arbor College town and upscale Wayne county suburbs. Clinton +25(Safe D)
Titanium D Clinton +90 Detroit seat.
Livingston + exurban oakland and Macomb(Trump +24) Safe R
Inner Oakland(Clinton +25) Safe D
Most of Macomb +7 Trump = lean to Likely R and trending right.

If you combine the Downriver and Detroit districts, what's the black population? Just wondering if there's a viable east-west split there that keeps them both as VRA districts.

The Black population in that yellow seat is essentially negligible outside of River Rouge, Ecorse, Inkster, and Romulus, and none of those are a huge percentage of the population. So yeah, I'd imagine it may even be majority white? The Oakland county district might actually be Blacker since it has Southfield and Pontiac.
sending both VRA seats into Oakland would be interesting.  But they can both be kept within Wayne, I think that's the best configuration
Agree I prefer to avoid that cross(I might put southfield in a vra seat and grosse point in the macomb seat.)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on August 03, 2020, 01:13:23 PM
()

Obviously violates the VRA but this is my non partisan map of the detroit metro that fits almost perfectly
Creates a nice downriver WWC+arab seat thats Clinton +4 but trending R. Lean D
Ann Arbor College town and upscale Wayne county suburbs. Clinton +25(Safe D)
Titanium D Clinton +90 Detroit seat.
Livingston + exurban oakland and Macomb(Trump +24) Safe R
Inner Oakland(Clinton +25) Safe D
Most of Macomb +7 Trump = lean to Likely R and trending right.

If you combine the Downriver and Detroit districts, what's the black population? Just wondering if there's a viable east-west split there that keeps them both as VRA districts.

The Black population in that yellow seat is essentially negligible outside of River Rouge, Ecorse, Inkster, and Romulus, and none of those are a huge percentage of the population. So yeah, I'd imagine it may even be majority white? The Oakland county district might actually be Blacker since it has Southfield and Pontiac.
sending both VRA seats into Oakland would be interesting.  But they can both be kept within Wayne, I think that's the best configuration

I just question to what extent one of two VRA seats which just stays in Wayne actually works as a performing seat. I'd be a little concerned about a legal challenge if the Black % in both seats isn't as high as reasonably possible; even under the current district Tlaib managed to win a primary in 2018 where she was not the Black candidate of choice IIRC.

As far as the Pointes go, I don't see anything wrong with putting them in a Black-majority seat.. They aren't exactly a great fit for working-class and increasingly diversifying Macomb either, and you avoid a county split.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 𝕭𝖆𝖕𝖙𝖎𝖘𝖙𝖆 𝕸𝖎𝖓𝖔𝖑𝖆 on August 03, 2020, 01:24:56 PM
()

Obviously violates the VRA but this is my non partisan map of the detroit metro that fits almost perfectly
Creates a nice downriver WWC+arab seat thats Clinton +4 but trending R. Lean D
Ann Arbor College town and upscale Wayne county suburbs. Clinton +25(Safe D)
Titanium D Clinton +90 Detroit seat.
Livingston + exurban oakland and Macomb(Trump +24) Safe R
Inner Oakland(Clinton +25) Safe D
Most of Macomb +7 Trump = lean to Likely R and trending right.

If you combine the Downriver and Detroit districts, what's the black population? Just wondering if there's a viable east-west split there that keeps them both as VRA districts.

The Black population in that yellow seat is essentially negligible outside of River Rouge, Ecorse, Inkster, and Romulus, and none of those are a huge percentage of the population. So yeah, I'd imagine it may even be majority white? The Oakland county district might actually be Blacker since it has Southfield and Pontiac.
sending both VRA seats into Oakland would be interesting.  But they can both be kept within Wayne, I think that's the best configuration

I just question to what extent one of two VRA seats which just stays in Wayne actually works as a performing seat. I'd be a little concerned about a legal challenge if the Black % in both seats isn't as high as reasonably possible; even under the current district Tlaib managed to win a primary in 2018 where she was not the Black candidate of choice IIRC.

As far as the Pointes go, I don't see anything wrong with putting them in a Black-majority seat.. They aren't exactly a great fit for working-class and increasingly diversifying Macomb either, and you avoid a county split.

I mean, I don't think that the VRA has anything to say about very crowded Democratic primaries where the winner barely gets 30% of the vote.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: cvparty on August 03, 2020, 02:32:18 PM
ok i tried my best at a fair COI-based map with partisan data off. think i'm pretty satisfied with it since it's compact, only splits 10 counties, and keeps the grand rapids, lansing and tri-cities areas together. the sacrifices made are the detroit exurbs (shared among the two suburban detroit districts and lansing) and wayne's WWC neighborhoods (necessary for VRA districts)

it ends up being 7-6 obama, 7-6 trump, 8-5 whitmer. tipping point seat is CD8 which is consistently 2-5 points to the right of the state, so there's a GOP tilt

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MI-01: Obama +1 | Romney +9 | Trump +23
MI-02: McCain +6 | Romney +14 | Trump +9
MI-03: Obama +2 | Romney +6 | Trump +24
MI-04: Obama +6 | Romney +5 | Trump +21
MI-05: Obama +24 | Obama +18 | Clinton +1
MI-06: Obama +7 | Romney +2 | Trump +8
MI-07: Obama +20 | Obama +14 | Clinton +16
MI-08: Obama +10 | Obama +3 | Trump +5
MI-09: Obama +16 | Obama +15 | Clinton +6
MI-10: McCain +1 | Romney +10 | Trump +31
MI-11: Obama +8 | Obama +1 | Clinton +2
MI-12: Obama +61 | Obama +62 | Clinton +54
MI-13: Obama +64 | Obama +63 | Clinton +48


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 03, 2020, 02:40:26 PM
ok i tried my best at a fair COI-based map with partisan data off. think i'm pretty satisfied with it since it's compact, only splits 10 counties, and keeps the grand rapids, lansing and tri-cities areas together. the sacrifices made are the detroit exurbs (shared among the two suburban detroit districts and lansing) and wayne's WWC neighborhoods (necessary for VRA districts)

it ends up being 7-6 obama, 7-6 trump, 8-5 whitmer. tipping point seat is CD8 which is consistently 2-5 points to the right of the state, so there's a GOP tilt

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MI-01: Obama +1 | Romney +9 | Trump +23
MI-02: McCain +6 | Romney +14 | Trump +9
MI-03: Obama +2 | Romney +6 | Trump +24
MI-04: Obama +6 | Romney +5 | Trump +21
MI-05: Obama +24 | Obama +18 | Clinton +1
MI-06: Obama +7 | Romney +2 | Trump +8
MI-07: Obama +20 | Obama +14 | Clinton +16
MI-08: Obama +10 | Obama +3 | Trump +5
MI-09: Obama +16 | Obama +15 | Clinton +6
MI-10: McCain +1 | Romney +10 | Trump +31
MI-11: Obama +8 | Obama +1 | Clinton +2
MI-12: Obama +61 | Obama +62 | Clinton +54
MI-13: Obama +64 | Obama +63 | Clinton +48

Could you post the DRA map?
I want to make a change or 2.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: cvparty on August 04, 2020, 02:04:04 PM
ok i tried my best at a fair COI-based map with partisan data off. think i'm pretty satisfied with it since it's compact, only splits 10 counties, and keeps the grand rapids, lansing and tri-cities areas together. the sacrifices made are the detroit exurbs (shared among the two suburban detroit districts and lansing) and wayne's WWC neighborhoods (necessary for VRA districts)

it ends up being 7-6 obama, 7-6 trump, 8-5 whitmer. tipping point seat is CD8 which is consistently 2-5 points to the right of the state, so there's a GOP tilt

()
MI-01: Obama +1 | Romney +9 | Trump +23
MI-02: McCain +6 | Romney +14 | Trump +9
MI-03: Obama +2 | Romney +6 | Trump +24
MI-04: Obama +6 | Romney +5 | Trump +21
MI-05: Obama +24 | Obama +18 | Clinton +1
MI-06: Obama +7 | Romney +2 | Trump +8
MI-07: Obama +20 | Obama +14 | Clinton +16
MI-08: Obama +10 | Obama +3 | Trump +5
MI-09: Obama +16 | Obama +15 | Clinton +6
MI-10: McCain +1 | Romney +10 | Trump +31
MI-11: Obama +8 | Obama +1 | Clinton +2
MI-12: Obama +61 | Obama +62 | Clinton +54
MI-13: Obama +64 | Obama +63 | Clinton +48

Could you post the DRA map?
I want to make a change or 2.
my posted map is with extrapolated 2020 populations but here's  with 2018 numbers (https://davesredistricting.org/join/7be2549f-5a4a-43f4-a8eb-c7eef59d7076)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 04, 2020, 02:23:03 PM
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CVparty?
Opinion of these metro changes based on your map?

The median district is still Trump +5 but its now the Macomb seat. The lansing seat moves to Trump +2.4. The Flint seat is Clinton +0.6.

Also changed the cut of Flint county I took but didn't really make a major difference.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on August 04, 2020, 03:23:13 PM
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A good government R map.  Keeps cities and metro areas/COIs together, but would probably be 9-4.  Each red district is at least Trump+10.  In 2010 Steven Wolf would love this tho LOL. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on August 12, 2020, 03:15:13 AM
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Michigan map premised on competitive districts.
10, 11, 12, and 13 are all safe Dem; 1, 2, 4 and 6 are safe GOP; and the rest of the districts are at least fairly evenly divided, if not very evenly divided. The map does have a slight GOP lean but I wouldn't make much of it.

https://davesredistricting.org/join/67c4b87b-568c-4733-93eb-06bf4571758d


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on August 12, 2020, 05:02:26 AM
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This was done without looking at partisan data. Emphasis was on county integrity and having an all-Oakland CD. Unlike the previous map it has 2 black-plurality seats, not just one.
Only 6 county splits.
7, 11, 12, and 13 are Democratic. 1, 2, 3, and 4 are Republican. Not all of these 8 seats are safe. All other districts are too competitive to consider leaning too much to either party.
Ironically, while not aiming specifically for more competitive seats, I got a more competitive map than last time.
https://davesredistricting.org/join/530ccacc-b579-42c9-99fb-785785196b7d


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on August 12, 2020, 02:03:55 PM
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This was done without looking at partisan data. Emphasis was on county integrity and having an all-Oakland CD. Unlike the previous map it has 2 black-plurality seats, not just one.
Only 6 county splits.
7, 11, 12, and 13 are Democratic. 1, 2, 3, and 4 are Republican. Not all of these 8 seats are safe. All other districts are too competitive to consider leaning too much to either party.
Ironically, while not aiming specifically for more competitive seats, I got a more competitive map than last time.
https://davesredistricting.org/join/530ccacc-b579-42c9-99fb-785785196b7d
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Here's a similar map with 5 Clinton districts instead of 4, but fewer competitive districts.
According to the 2012-2018 composite, 6, 9, 11, 12, and 13 are solidly Republican, 5 and 10 lean Republican, 7 is highly competitive, 8 leans Democrat, and 1, 2, 3, and 4 are solidly Democratic.
https://davesredistricting.org/join/00ba0430-eccf-4ee4-9cb5-82090bd38e07


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on August 17, 2020, 01:14:07 PM


Commissioners have been chosen.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on September 20, 2020, 02:42:07 PM
Here's another shot at Michigan--IMO this is my favorite map I've made yet. Here's the DRA link. (https://davesredistricting.org/join/bcbb861e-3e13-4b8b-a6f3-eb82d5679aa8)

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The only town or township split is Clinton Charter Township, in Macomb County, which has such humongous municipalities that it makes not splitting something rather difficult.

MI-11 and MI-12 are both majority-Black.

Let me know if there any issues with the image displays.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on September 20, 2020, 04:45:09 PM
That is a very nice map.  About the only thing I'd quibble with is the 8th's long western tail. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on September 20, 2020, 06:21:33 PM
That is a very nice map.  About the only thing I'd quibble with is the 8th's long western tail. 

Yeah, not my favorite. Though it's kind of forced if you want to put Battle Creek in with Kalamazoo. Forumites, are those two particularly connected?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on September 20, 2020, 06:38:41 PM
You may be able to keep Battle Creek if you give most/all of Allegan to the 2nd; that way Holland isn't split. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on September 20, 2020, 09:05:23 PM
How about this? (https://davesredistricting.org/join/c2cffd5c-1631-491d-88ce-9a2b1ce2e27e)

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Still had to split Calhoun, but I do agree that the 8th is nicer when conciser.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: dpmapper on September 21, 2020, 10:44:38 AM
I think Calhoun is destined to be split.  If you want to make things even more compact you could give Barry to the Lansing district, split Allegan between 2 and 5, and then lop off the top of the Lansing district and put it back into 2. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on November 24, 2020, 08:06:12 PM
It seems the most important decision is regarding Macomb and the Thumb. Keeping a district fully with Macomb all but forces Levin and Stevens together while also putting Flint with the thumb which should be Likely GOP.

However keeping something like the current MI 10th will help D's a decent bit even if the Detroit districts expand as Washentaw can take all the red territory and still remain Safe D.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Pericles on November 24, 2020, 08:51:05 PM


Commissioners have been chosen.

Are these just random people, like a jury trial, or do they have certain qualifications? Pretty cool if it's the former.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on November 28, 2020, 08:31:20 AM
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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: avishwanath28 on November 28, 2020, 10:32:11 AM

What is partisan breakdown of that map? Looks like 1, 2, 3, 5, 7, 8 are Republican, 6, 9, 10, 12, 13 are Democratic, and 4 and 11 are swingy?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on November 28, 2020, 10:43:00 AM

What is partisan breakdown of that map? Looks like 1, 2, 3, 5, 7, 8 are Republican, 6, 9, 10, 12, 13 are Democratic, and 4 and 11 are swingy?

3 is lean Dem I suspect, and 5 could go swingy if the Dutch belt keeps moving to the Dems. The only really pretty safe CD's for the Pubs are 1 and 7. At the moment 4 is probably tilt Pub, but may not be that way for long. The one really swing CD is 11, and it will go tilt Dem if trends continue. Trump 2020 probably got beaten pretty badly there, but he was a horrible fit for that CD this year.

The way the trends have played out, there are a lot more competitive CD's in MI, which is a beautiful thing. :)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Mr.Phips on November 28, 2020, 10:58:52 AM

What is partisan breakdown of that map? Looks like 1, 2, 3, 5, 7, 8 are Republican, 6, 9, 10, 12, 13 are Democratic, and 4 and 11 are swingy?

3 is lean Dem I suspect, and 5 could go swingy if the Dutch belt keeps moving to the Dems. The only really pretty safe CD's for the Pubs are 1 and 7. At the moment 4 is probably tilt Pub, but may not be that way for long. The one really swing CD is 11, and it will go tilt Dem if trends continue. Trump 2020 probably got beaten pretty badly there, but he was a horrible fit for that CD this year.

The way the trends have played out, there are a lot more competitive CD's in MI, which is a beautiful thing. :)

I think 3 would lean Republican and 4 and 11 would be the swing districts.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on November 28, 2020, 11:19:21 AM

What is partisan breakdown of that map? Looks like 1, 2, 3, 5, 7, 8 are Republican, 6, 9, 10, 12, 13 are Democratic, and 4 and 11 are swingy?

3 is lean Dem I suspect, and 5 could go swingy if the Dutch belt keeps moving to the Dems. The only really pretty safe CD's for the Pubs are 1 and 7. At the moment 4 is probably tilt Pub, but may not be that way for long. The one really swing CD is 11, and it will go tilt Dem if trends continue. Trump 2020 probably got beaten pretty badly there, but he was a horrible fit for that CD this year.

The way the trends have played out, there are a lot more competitive CD's in MI, which is a beautiful thing. :)

I think 3 would lean Republican and 4 and 11 would be the swing districts.

Well you can peruse the numbers yourself and make up your own mind. It is harder than it used to be to predict these things with the complexion of the partisan coalitions in such a state of flux.

https://davesredistricting.org/join/d5fbe65c-1976-45b4-a98f-ab09f694fad4

Well that does not seem to work. Sorry.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on November 30, 2020, 09:18:18 AM
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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on November 30, 2020, 10:21:12 AM
Honestly I would give Bay and the county to the north to the 1st and give Leelanau and Grand Traverse to the 2nd.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on November 30, 2020, 11:13:03 AM
Honestly I would give Bay and the county to the north to the 1st and give Leelanau and Grand Traverse to the 2nd.

Your wish is my command.

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Former President tack50 on November 30, 2020, 12:55:44 PM
For fun decided to try and make a fair State senate map:

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Detroit area inset:
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https://davesredistricting.org/join/e7e3428a-47d3-490a-88b2-f6bde8043a81

Per DRA, there should be 18 Republican districts, 11 Democratic districts and 8 competitive districts.

The tipping point districts would be:

Dem majority: District 34 (Muskegon area): Trump+10, R+3
Tie: District 13 (Southeast Macomb County); Trump+9, R+2
Rep majority: District 22 (Saginaw area): Trump+7, R+2

So basically this map would make the state senate likely R, but not 100% safe


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: AustralianSwingVoter on December 05, 2020, 09:03:41 AM
Just to see if it's possible given how easy a 9-4 GOP gerry is, a solid attempt at a 9-4 Dem gerry. Every Dem incumbent resides in their own seat except for Slotkin who really lives in the worst place possible, though I assume she'd move to the 7th. The 3rd is marginal but trending blue while the 4th and 11th are both zooming right.
Overall it turned out a lot better than I was expecting.

https://davesredistricting.org/join/9f0a01dd-f779-4b11-82ce-ed008b8a1ce9 (https://davesredistricting.org/join/9f0a01dd-f779-4b11-82ce-ed008b8a1ce9)
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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: kwabbit on December 07, 2020, 04:42:00 PM
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My first attempt at a fair Michigan map. I tried to minimize county and city splits, but in doing so I mistakenly created a mild GOP gerrymander. Detroit is kept whole, but the result is a Dem pack, but I think Detroit should be kept whole if it can be. The data is President 2016. Biden likely flipped the Lansing CD and possibly flipped the Grand Rapids CD, but the likely breakdown was 4-9 in 2016 and 5-8 in 2020. I tried to make a thumb seat but that involved incorporating Flint, which cost Dems a seat. Not making a seat that went across Macomb and Oakland probably cost another seat. The map could've been 9-4 with a pro-Dem drawn while still being fair.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 07, 2020, 04:50:33 PM
Not VRA compliant.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on December 07, 2020, 04:59:08 PM
MI-10 is 76.65% Black?  Not happening.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: kwabbit on December 07, 2020, 04:59:15 PM
Do I need to make a second AA seat in Detroit?

Bit of a bummer, I was surprised that Detroit could be fit into a nice, neat district. I suppose it can be rearranged without really changing the outcome of the map though.

What qualifies as VRA compliant? I was able to make both Detroit CDs around 45% black. Should I shoot for 50?

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The east Detroit is now down to 50% Black and the West Wayne is now 42% Black. DRA has minority rating at 98.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 07, 2020, 05:16:29 PM
Do I need to make a second AA seat in Detroit?

Bit of a bummer, I was surprised that Detroit could be fit into a nice, neat district. I suppose it can be rearranged without really changing the outcome of the map though.

What qualifies as VRA compliant? I was able to make both Detroit CDs around 45% black. Should I shoot for 50?
A compact Detroit CD is excessive packing of black voters. That being said - you don't have to touch any CDs on the map other than 11 and 10. Just rearrange them.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: kwabbit on December 07, 2020, 05:17:14 PM
Do I need to make a second AA seat in Detroit?

Bit of a bummer, I was surprised that Detroit could be fit into a nice, neat district. I suppose it can be rearranged without really changing the outcome of the map though.

What qualifies as VRA compliant? I was able to make both Detroit CDs around 45% black. Should I shoot for 50?
A compact Detroit CD is excessive packing of black voters. That being said - you don't have to touch any CDs on the map other than 11 and 10. Just rearrange them.
Rearranged above.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 07, 2020, 05:20:03 PM
Do I need to make a second AA seat in Detroit?

Bit of a bummer, I was surprised that Detroit could be fit into a nice, neat district. I suppose it can be rearranged without really changing the outcome of the map though.

What qualifies as VRA compliant? I was able to make both Detroit CDs around 45% black. Should I shoot for 50?
A compact Detroit CD is excessive packing of black voters. That being said - you don't have to touch any CDs on the map other than 11 and 10. Just rearrange them.
Rearranged above.
Ok, that's decent.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 07, 2020, 05:25:42 PM
Do I need to make a second AA seat in Detroit?

Bit of a bummer, I was surprised that Detroit could be fit into a nice, neat district. I suppose it can be rearranged without really changing the outcome of the map though.

What qualifies as VRA compliant? I was able to make both Detroit CDs around 45% black. Should I shoot for 50?

()

The east Detroit is now down to 50% Black and the West Wayne is now 42% Black. DRA has minority rating at 98.

You can definitely get over 50% pretty easily and compactly. It does require dipping into Southfield and Pontiac, and you do have to do a little careful work to avoid splitting municipalities, but it's very doable.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 07, 2020, 05:26:11 PM
Pontiac shouldn't really be reached for, its way too far away and messes up the rest of the Oakland district.Southfield is ok though.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Coastal Elitist on December 07, 2020, 05:30:42 PM
This is an example of why the VRA is stupid and goes against the whole idea of fair redistricting which is to put communities of interest together. From a fair standpoint it makes sense to make Detroit one district because it fits nicely and a city is a perfect COI but no we can't do that because it packs blacks so instead we have to spread them out through the suburbs to make sure we can get two black districts.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: kwabbit on December 07, 2020, 05:31:59 PM
Do I need to make a second AA seat in Detroit?

Bit of a bummer, I was surprised that Detroit could be fit into a nice, neat district. I suppose it can be rearranged without really changing the outcome of the map though.

What qualifies as VRA compliant? I was able to make both Detroit CDs around 45% black. Should I shoot for 50?


The east Detroit is now down to 50% Black and the West Wayne is now 42% Black. DRA has minority rating at 98.

You can definitely get over 50% pretty easily and compactly. It does require dipping into Southfield and Pontiac, and you do have to do a little careful work to avoid splitting municipalities, but it's very doable.

Does going from 42 to 50% warrant another split of Oakland? I saw all of the Black population in South Oakland but I have an existing district with basically all of incorporated Oakland in it. Counties are pretty arbitrary political boundaries, but I don't like how Wayne/Washtenaw/Macomb/Oakland are all carved up in weird ways in the actual House map.

I do think 42% Black is enough to elect a representative of their choice consistently. They make up over 60% of the Dem electorate in each.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 07, 2020, 05:34:32 PM
Do I need to make a second AA seat in Detroit?

Bit of a bummer, I was surprised that Detroit could be fit into a nice, neat district. I suppose it can be rearranged without really changing the outcome of the map though.

What qualifies as VRA compliant? I was able to make both Detroit CDs around 45% black. Should I shoot for 50?


The east Detroit is now down to 50% Black and the West Wayne is now 42% Black. DRA has minority rating at 98.

You can definitely get over 50% pretty easily and compactly. It does require dipping into Southfield and Pontiac, and you do have to do a little careful work to avoid splitting municipalities, but it's very doable.

Does going from 42 to 50% warrant another split of Oakland? I saw all of the Black population in South Oakland but I have an existing district with basically all of incorporated Oakland in it. Counties are pretty arbitrary political boundaries, but I don't like how Wayne/Washtenaw/Macomb/Oakland are all carved up in weird ways in the actual House map.
Imo, I think it can go either way. Going into Oakland or not going into it are both justifiable choices.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 07, 2020, 05:37:25 PM
Pontiac shouldn't really be reached for, its way too far away and messes up the rest of the Oakland district.Southfield is ok though.
Yeah, Pontiac doesn't belong in there. Period. If you reach into Oakland, take Southfield. That's it.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 07, 2020, 06:06:50 PM
You have to draw two Black districts in Detroit, suck it up.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 07, 2020, 06:12:42 PM
You have to draw two Black districts in Detroit, suck it up.
The VRA does not require some grotesque arm leading up through Oakland all the way to Pontiac. Just no.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Former President tack50 on December 07, 2020, 08:13:51 PM
Do I need to make a second AA seat in Detroit?

Bit of a bummer, I was surprised that Detroit could be fit into a nice, neat district. I suppose it can be rearranged without really changing the outcome of the map though.

What qualifies as VRA compliant? I was able to make both Detroit CDs around 45% black. Should I shoot for 50?


The east Detroit is now down to 50% Black and the West Wayne is now 42% Black. DRA has minority rating at 98.

You can definitely get over 50% pretty easily and compactly. It does require dipping into Southfield and Pontiac, and you do have to do a little careful work to avoid splitting municipalities, but it's very doable.

Does going from 42 to 50% warrant another split of Oakland? I saw all of the Black population in South Oakland but I have an existing district with basically all of incorporated Oakland in it. Counties are pretty arbitrary political boundaries, but I don't like how Wayne/Washtenaw/Macomb/Oakland are all carved up in weird ways in the actual House map.

I do think 42% Black is enough to elect a representative of their choice consistently. They make up over 60% of the Dem electorate in each.

Given you have 2 black districts you could go for 2 districts at 46% black as well instead of one at 42 and one at 50.

I also agree with TPH that in this particular case the COI based map would keep Detroit in a single district. But over all 50 states the effects of the VRA probably cancel out.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on December 07, 2020, 08:19:28 PM
You have to draw two Black districts in Detroit, suck it up.
The VRA does not require some grotesque arm leading up through Oakland all the way to Pontiac. Just no.

Yeah, the Supreme Court has ruled that you can get a black performing district at like 42-44%.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 07, 2020, 08:22:00 PM
You have to draw two Black districts in Detroit, suck it up.
The VRA does not require some grotesque arm leading up through Oakland all the way to Pontiac. Just no.

Yeah, the Supreme Court has ruled that you can get a black performing district at like 42-44%.
Would the territory a performing black seat take on be relevant, if, say, an area was overwhelmingly registered R among whites, and another area not?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on December 07, 2020, 08:23:55 PM
This is an example of why the VRA is stupid and goes against the whole idea of fair redistricting which is to put communities of interest together. From a fair standpoint it makes sense to make Detroit one district because it fits nicely and a city is a perfect COI but no we can't do that because it packs blacks so instead we have to spread them out through the suburbs to make sure we can get two black districts.

Representation for ethnic groups > arbitrary municipal lines.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on December 08, 2020, 05:30:20 AM
It's not like Detroit's boundaries (and when they stopped expanding) was a development that grew up entirely separately from class and race-based discrimination.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Former President tack50 on December 08, 2020, 06:07:35 AM
It's not like Detroit's boundaries (and when they stopped expanding) was a development that grew up entirely separately from class and race-based discrimination.

Wayne County is supermajorty Democratic, so wouldn't they be free to redraw municipal boundaries as they saw fit?

If it has to be done by the state government it is harder, but still certainly doable?

Tbh I will say that one problem the US have is that the municipal boundaries in many cases are ridiculous and can and should be ignored in those cases where the municipal lines have tons of enclaves and exclaves and are impossible to follow, but Detroit seems to me like it has fairly clean lines.

This is an example of why the VRA is stupid and goes against the whole idea of fair redistricting which is to put communities of interest together. From a fair standpoint it makes sense to make Detroit one district because it fits nicely and a city is a perfect COI but no we can't do that because it packs blacks so instead we have to spread them out through the suburbs to make sure we can get two black districts.

Representation for ethnic groups > arbitrary municipal lines.

Not really, the point of FPTP is to represent communities, not ethnic groups. If the US really wanted to represent ethnic groups, they should go with different alternatives like for example party list PR (and making sure X % of candidates are from Y group); or making sure that parties must nominate X% of candidates from Y ethnic group; with Z% being in districts they won last election or something.

Of course that also requires dismantling primaries as Americans know them, with a "party decides" model (like say, the UK or Canada do)

I will say that I still oppose repealing that provision of the VRA and that in Detroit's particular case it is not too bad and there are much worse examples you can make for that (for example FL-05).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Former President tack50 on December 08, 2020, 06:34:51 AM
I will also note that in Michigan's particular case, the VRA either has no impact, or actually hurts Democrats by turning what should be a safe seat into a swingy seat. Here are 3 maps of the Detroit metropolitan area that illustrate this:

Non-VRA compliant map with a Detroit district

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MI-01: Clinton+81, D+41 (74% black)
MI-02: Clinton+14, D+9
MI-03: Clinton+15, D+8
MI-04: Trump+7, R+1
MI-05: Clinton+20, D+8
MI-06: Trump+20, R+10



VRA semi-compliant map with a Detroit split

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MI-01: Clinton+50, D+27 (48% black)
MI-02: Clinton+39, D+19 (43% black)
MI-03: Clinton+15, D+8
MI-04: Trump+7, R+1
MI-05: Clinton+20, D+8
MI-06: Trump+20, R+10


Fully VRA compliant map with maxed out black districts

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MI-01: Clinton+51, D+24 (48% black)
MI-02: Clinton+51, D+26 (50% black)
MI-03: Clinton+15, D+8
MI-04: Trump+7, R+1
MI-05: Clinton+9, D+2
MI-06: Trump+20, R+10

So interestingly, it is the 2nd map that is the best for Dems, but the difference is incredibly marginal, it's not like the 2nd district in the first map is anything other than Safe D. A D+9, Clinton+14 district is probably not winnable for a Republican; not even in a big wave?

Meanwhile, when you try to max out black percentages you end up endangering the 5th district. It is still quite Democratic (and probably trending D) but it's not exactly safe.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on December 08, 2020, 06:57:34 AM
It's not like Detroit's boundaries (and when they stopped expanding) was a development that grew up entirely separately from class and race-based discrimination.

Wayne County is supermajorty Democratic, so wouldn't they be free to redraw municipal boundaries as they saw fit?

If it has to be done by the state government it is harder, but still certainly doable?

Tbh I will say that one problem the US have is that the municipal boundaries in many cases are ridiculous and can and should be ignored in those cases where the municipal lines have tons of enclaves and exclaves and are impossible to follow, but Detroit seems to me like it has fairly clean lines.

I think it's the state government, but that doesn't really signify in any case. Dearborn and Detroit are both hugely Democratic cities and have been for decades. It doesn't mean that racialised animus hasn't been a huge part of the story of the relationship between them.

I'm hard-pressed to see that Detroit's lines match up to any real-world geographic features in any organised way (it has an arm south of the Rouge River; northern and eastern Dearborn fades naturally into Detroit; the boundary with Redford is a straight line rather than following the river), and to the extent they match demographic lines that's simply a consequence of white-flight and redlining.

I would also point out that even if you did change the lines in Wayne County, the northern boundary of Detroit would still be arbitrary - it has nothing to do with the settlement's natural boundaries and everything to do with straight lines drawn by surveyors in the early 19th century.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 08, 2020, 07:42:53 AM
the boundaries of Detroit itself I don't think have anything to do with race. The racial makeup of Detroit, though, has practically everything to do with race.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: America Needs a 13-6 Progressive SCOTUS on December 08, 2020, 08:15:20 AM
I will say that I still oppose repealing that provision of the VRA and that in Detroit's particular case it is not too bad and there are much worse examples you can make for that (for example FL-05).
FL-05 is not actually required by the federal VRA, its required by the states fair Districts amendment (which by the way is about to be a dead letter because the 6-1 Conservative state Supreme Court is definitely going to let the legislature ignore it).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on December 08, 2020, 08:32:12 AM
the boundaries of Detroit itself I don't think have anything to do with race. The racial makeup of Detroit, though, has practically everything to do with race.

The original boundaries aren't. The fact they haven't changed since the 1930s, however, is not disconnected from race. And elements of the boundaries have to do with class - for example, Redford Township still exists as a separate entity because it petitioned for a charter to stop Detroit annexing developed parts of it, which was definitely about more prosperous bits of the county wanting to remain separate from working-class Detroit.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 08, 2020, 09:12:40 AM
@tack Detroit VRA does matter slightly here partisanwise in my whole detroit seat non partisan map.

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I put Washentaw with Western Wayne and Livonia  rather than Monroe. Monroe went with Downriver + Dearborn. However the Monroe seat is fairly swingy by 2016 numbers at Clinton +6. 2008 had the same partisan numbers for both "suburban seats" but 2016 had a wildy different one.

Overall the effect of the VRA and unpacking minorities I finds only really takes effect in the RGV and Detroit Michigan. The remaining Democratic complaints about packing minorities really has to do with the fact that white libs are around those minorities. A 60% black seat would be perfectly fine for them in MS because it would be 61% D or so. A 60% black seat in Philly is "packing" because its 90% D due to liberal whites. Even in Georgia the most overpacked seats wouldn't be a southern suburb 60% black seat but rather the 52% black seat in Fulton that might actually be getting a bit whiter due to Atlanta gentrification.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 08, 2020, 05:47:42 PM
the boundaries of Detroit itself I don't think have anything to do with race. The racial makeup of Detroit, though, has practically everything to do with race.

The original boundaries aren't. The fact they haven't changed since the 1930s, however, is not disconnected from race. And elements of the boundaries have to do with class - for example, Redford Township still exists as a separate entity because it petitioned for a charter to stop Detroit annexing developed parts of it, which was definitely about more prosperous bits of the county wanting to remain separate from working-class Detroit.
Fair point.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on December 11, 2020, 09:44:51 PM
I actually really like this map, kinda inspired by other maps posted on this thread honestly.

I don't think either party would object to it that much,  Clinton only won 4 seats but a lot of the seats are winnable for dems.  Glancing it over I'd think 3, 5, 6, and 8 would all be tossup by 2022 using 2020 numbers.   9 is probably safe for Stevens with current trends in Oakland.

Both Detroit seats are AA majority, and I really like the setup of Oakland with exclusively two districts.  Also the southern border counties aren't a mess anymore with two "block" districts, 6 and 10.

https://davesredistricting.org/join/06892011-f81c-439d-ab87-79c4f50589f8

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 11, 2020, 10:18:03 PM
You do realize that was with 2010 pop?


Can we get a big F.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on December 11, 2020, 10:27:13 PM
You do realize that was with 2010 pop?


Can we get a big F.

Weird, I had it set to 2018, but it stuck on 2010, it even said 2018 in the sidebar.  Oh well my bad.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on December 11, 2020, 10:56:12 PM
Okay, take two I suppose :-)

https://davesredistricting.org/join/06892011-f81c-439d-ab87-79c4f50589f8

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: palandio on December 12, 2020, 04:27:39 AM
Okay, take two I suppose :-)

https://davesredistricting.org/join/06892011-f81c-439d-ab87-79c4f50589f8

[...]

Generally many good choices and decisions. I would criticize the following:
- Putting Livingston County with Lansing continues Slotkin's current district, but it is otherwise ugly. It combines Detroit ex-urbs with an independent metro and is therefore not good from a CoI perspective. Instead Jackson could go with Lansing and Livingston County with Washtenaw.
- Separating Kalamazoo and Battle Creek is often difficult to avoid, but it's still not nice. I would slightly rotate districts 1, 2, 5, 6, 7 and 10 in the following way: 7 would take most of Calhoun County (Battle Creek) from 6, 6 would take from 5, 5 from 10, 10 from 1, 1 from 2 and 2 from 7.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 12, 2020, 11:54:09 AM
Tbh Livingston County isn't a good fit with either Lansing or Washtenaw--the obvious pairing for it is Western Oakland. That does force a Macomb-Oakland district, but also can allow for a fairly attractive Flint-Saginaw-Bay City-Midland seat which seems like a decent CoI.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: palandio on December 12, 2020, 01:12:39 PM
CoI-wise Washtenaw is the odd child, it's about half a district, but most potential partners don't really fit. SW Oakland and far NW Wayne could fit relatively well, although that probably creates problems for the rest of the map. The seat that includes Ann Arbor will be a bad CoI on most maps.

The Flint-Saginaw seat can always include Bay City if you accept connecting the Thumb to the Northern Hudson shoreline via the beach of Bay County. (Yes, I know, it's ugly.) What you seem to propose is a district combining the Thumb with Northern and Central parts of Macomb like the current 10th. This district would be nice and compact, but also prevent a Macomb seat and pair major metro Detroit areas with major non-metro areas.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: S019 on December 12, 2020, 02:09:06 PM
Okay, take two I suppose :-)

https://davesredistricting.org/join/06892011-f81c-439d-ab87-79c4f50589f8

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I am not a big fan of drawing a Pontiac based VRA seat, I much prefer splitting Detroit and drawing two Wayne based seats


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Starry Eyed Jagaloon on December 12, 2020, 02:56:35 PM
TBH, I think the best option with Washtenaw is pairing it with Monroe, Lenawee, and Western Wayne. It's kind of awkward as a COI but it does become a compact Detroit exurban seat. Move the Grosse Pointes into Macomb and it leaves behind a compact two Detroit districts--mitigating any need to split the Wayne/Oakland county line.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: palandio on December 12, 2020, 04:19:53 PM
Yes, as a CoI it's awkward, but it stays mostly in metro Detroit and it leaves space for a nice-shaped Lansing-Jackson seat to its West (or alternatively Kalamazoo-Battle Creek-Jackson). It might be the least bad solution.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Starry Eyed Jagaloon on December 12, 2020, 04:27:38 PM
Yes, as a CoI it's awkward, but it stays mostly in metro Detroit and it leaves space for a nice-shaped Lansing-Jackson seat to its West (or alternatively Kalamazoo-Battle Creek-Jackson). It might be the least bad solution.

Yep. Personally I favor the Kalamazoo option. Take the six relevant counties and half of Lenawee and you have a really clean district.

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 14, 2020, 01:40:35 PM
I gotta say, the reluctance to put Southfield in a Detroit based district from some of y'all baffles me. Not so much from the folks who have been consistently on the record opposing VRA districts or obsessing about county contiguity, but moreso from people who will usually dismiss county considerations in favor a California-style CoI approach. Southfield is literally right there and is prime fodder for a thoughtful map's 2 VRA districts.

I actually do understand not wanting to go to Pontiac, but IMO it's not too different from going to Romulus, which will probably happen if you keep both seats in Wayne County.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 14, 2020, 02:13:16 PM
If you can draw two performing black CD's within Wayne, I do not understand the rationale to cross over into Southfield in Oakland myself.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 14, 2020, 02:20:53 PM
You can't draw two Black majority districts in Wayne, at least not without getting really ugly and splitting municipalities (was just playing around with it myself) but I think it's possible to draw plurality Black districts there, which of course raises the whole thorny issue of what counts as performing, etc. etc.

What is possible actually is to draw two Black majority districts in Wayne which only go into Southfield and Easpointe (and Bingham Farms for population). It's not pretty IMO; it forces weird contortions, but here's the link (https://davesredistricting.org/join/ca828373-f1d1-436d-9710-6f66432fcde0).



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 14, 2020, 02:27:47 PM
In the map that I drew I am quite confident that the two  CD's that are performing for black candidates. But yes, that is the crux of the issue - are they performing? The questions revolves around the expected composition of the voters in a Dem primary. In the 2018 GOP primary, about 90,000 chose to vote in that primary in Wayne County.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 14, 2020, 02:57:24 PM
Ultimately my view is is that the question of performing is a thorny one, but if you look at the effects of drawing a Black seat into Oakland it becomes a lot easier. As a consequence of that choice, a map drawer is thus able to draw a Livingston+Oakland seat, a Thumb-Detroit exurbia seat, and a Flint-Saginaw-Bay City-Midland seat, which are all excellent CoI and avoid ugly stuff like forcing Livingston in with Lansing.

It's not like a Pontiac-Detroit seat is even that hideous either--it's more compact and attractive than basically any other VRA seat outside of Chicago and Atlanta.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 14, 2020, 03:04:39 PM
Ultimately my view is is that the question of performing is a thorny one, but if you look at the effects of drawing a Black seat into Oakland it becomes a lot easier. As a consequence of that choice, a map drawer is thus able to draw a Livingston+Oakland seat, a Thumb-Detroit exurbia seat, and a Flint-Saginaw-Bay City-Midland seat, which are all excellent CoI and avoid ugly stuff like forcing Livingston in with Lansing.

It's not like a Pontiac-Detroit seat is even that hideous either--it's more compact and attractive than basically any other VRA seat outside of Chicago and Atlanta.

MS?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 14, 2020, 03:05:22 PM
Ultimately my view is is that the question of performing is a thorny one, but if you look at the effects of drawing a Black seat into Oakland it becomes a lot easier. As a consequence of that choice, a map drawer is thus able to draw a Livingston+Oakland seat, a Thumb-Detroit exurbia seat, and a Flint-Saginaw-Bay City-Midland seat, which are all excellent CoI and avoid ugly stuff like forcing Livingston in with Lansing.

It's not like a Pontiac-Detroit seat is even that hideous either--it's more compact and attractive than basically any other VRA seat outside of Chicago and Atlanta.

MS?

Don't like the split of Metro Jackson.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 14, 2020, 03:11:50 PM
I guess you will post your map in due course.


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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: palandio on December 14, 2020, 03:27:07 PM
I gotta say, the reluctance to put Southfield in a Detroit based district from some of y'all baffles me. Not so much from the folks who have been consistently on the record opposing VRA districts or obsessing about county contiguity, but moreso from people who will usually dismiss county considerations in favor a California-style CoI approach. Southfield is literally right there and is prime fodder for a thoughtful map's 2 VRA districts.

I actually do understand not wanting to go to Pontiac, but IMO it's not too different from going to Romulus, which will probably happen if you keep both seats in Wayne County.
I'm quite agnostic about going into Southfield. It makes sense from a demographic point of view. Yet it still goes over a county line and you may have to make up for that at another point of the map.

But all seats on the map have to be seen together. The nicest Wayne/Oakland/Macomb layout can force an ugly non-compact remainder seat snaking from Monroe westwards and the separation of Kalamazoo and Battle Creek and then few is gained overall.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 14, 2020, 03:27:58 PM
I guess you will post your map in due course.

I drew one way upthread, though it has some flaws I'm working on now.

Here's another shot at Michigan--IMO this is my favorite map I've made yet. Here's the DRA link. (https://davesredistricting.org/join/bcbb861e-3e13-4b8b-a6f3-eb82d5679aa8)

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The only town or township split is Clinton Charter Township, in Macomb County, which has such humongous municipalities that it makes not splitting something rather difficult.

MI-11 and MI-12 are both majority-Black.

Let me know if there any issues with the image displays.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 14, 2020, 04:54:02 PM
Ok, here's my counterproposal. (https://davesredistricting.org/join/4bff10bb-e772-4f5f-a6a8-9658aac42340) Fairly similar to my earlier map, but with a more compact Detroit area. Not in love with the boundary between the 1st and 2nd but not sure of the best way to improve it.


Sorry for the absence of images, not able to screenshot presently.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: palandio on December 14, 2020, 05:47:49 PM
Ok, here's my counterproposal. (https://davesredistricting.org/join/4bff10bb-e772-4f5f-a6a8-9658aac42340) Fairly similar to my earlier map, but with a more compact Detroit area. Not in love with the boundary between the 1st and 2nd but not sure of the best way to improve it.


Sorry for the absence of images, not able to screenshot presently.

So 1, 2 and 10 seem to be solid R.
The 8th despite a clear swing towards the Democrats seems to still have been about Trump +10 in 2020.
The 6th actually seems to be quite competitive at Trump +3 or +4.
The 3rd and 4th seem to have gone to Trump by less than a point.
The 13th seems to have voted for Biden, but only by a point or so.
The 5th seems to have voted for Biden by 2 or 3 points, although it is more Democratic down-ballot.
The 9th is at ca. Biden +9, I would think.
The 7th is at ca. Biden +12 which shows how Ann Arbor can color every seat (Atlas) red.
The 11th and 12nd are of course solid D.

Altogether the map has an R tilt compared to the state's overall political lean. But that R tilt is difficult to avoid given its geography and given these circumstances the map's R tilt is actually very slight.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 14, 2020, 05:50:45 PM
Ok, here's my counterproposal. (https://davesredistricting.org/join/4bff10bb-e772-4f5f-a6a8-9658aac42340) Fairly similar to my earlier map, but with a more compact Detroit area. Not in love with the boundary between the 1st and 2nd but not sure of the best way to improve it.


Sorry for the absence of images, not able to screenshot presently.


You probably should try to avoid a West to East MI district in central north. Trade between 1 and 2.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 14, 2020, 06:09:38 PM
Ok, here's my counterproposal. (https://davesredistricting.org/join/4bff10bb-e772-4f5f-a6a8-9658aac42340) Fairly similar to my earlier map, but with a more compact Detroit area. Not in love with the boundary between the 1st and 2nd but not sure of the best way to improve it.


Sorry for the absence of images, not able to screenshot presently.


Thank you.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 14, 2020, 06:12:06 PM
Ok, here's my counterproposal. (https://davesredistricting.org/join/4bff10bb-e772-4f5f-a6a8-9658aac42340) Fairly similar to my earlier map, but with a more compact Detroit area. Not in love with the boundary between the 1st and 2nd but not sure of the best way to improve it.


Sorry for the absence of images, not able to screenshot presently.


You probably should try to avoid a West to East MI district in central north. Trade between 1 and 2.

Yeah that makes sense. Doing a full on Traverse City-Holland district is pretty dang sensible, but I felt weird about putting the UP with the Huron shore--probably not justified, but it looks awfully odd.

Plus I think I was a bit tired after endlessly massaging the Detroit area seats to avoid municipal splits. :P


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on December 15, 2020, 04:57:02 AM
For that 7th, is it possible to swap St. Joseph County for bits of Calhoun outside Battle Creek?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 15, 2020, 07:23:39 AM
For that 7th, is it possible to swap St. Joseph County for bits of Calhoun outside Battle Creek?

I think so but it cuts a little tight.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Former President tack50 on December 15, 2020, 08:38:31 AM
For fun, here is my guess for a bipartisan incumbent protection plan; the kind that could have been drawn if there was no comission. I did this hoping that, for the most part, trends would stick. Admittedly this is a version that is quite favourable to Dems, but still it does its job for "incumbent protection" though I think some of the R representatives get screwed so not ideal for them.

Names indicate the representative the district is intended for, the one whose home is inside the district. Since Michigan is losing a district, 2 representatives will have to share one.

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https://davesredistricting.org/join/6982f03d-e958-4756-94a9-7f078b471b0e

MI-01 (Bergman): Trump+23, R+10
MI-02 (Huizenga): Trump+12, R+6
MI-03 (Moolenar): Trump+10, R+4
MI-04 (Meljer + Kildee): Trump+1, EVEN
MI-05 (Upton): Trump+18, R+9
MI-06 (Walberg): Trump+18, R+8
MI-07 (Slotkin): Clinton+3, D+1
MI-08 (Levin): Clinton+6, D+5
MI-09 (McClain): Trump+32, R+12
MI-10 (Stevens): Clinton+1, EVEN
MI-11 (Dingell): Clinton+15, D+10
MI-12 (Tlaib): Clinton+52, D+28 (49% black)
MI-13 (Lawrence): Clinton+40, D+19 (47% black)

My thoughts in terms of the changes were basically that the successor to Amash, with low seniority and in a D trending area, should be combined with the MI-05 district, in an R trending area and which is a D gerrymander. This creates a perfectly fair fight district that is EVEN in PVI and voted Trump by only 1%.

The 2 Dems that won in 2018 get versions that are more democratic than their current versions, though they are still plenty winable for Republicans.

As for the rest I just took the residences and tried to make safe districts out of them that resembled their old district. Tbh the Grand Rapids area gets completely screwed in this map with a 4 way cut, and the 2 resulting districts aren't the greatest or the safest but it is good enough I suppose. Like I said the map is probably a bid Dem leaning.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 15, 2020, 09:36:41 AM
Nice piece of art work!


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 15, 2020, 03:37:55 PM
Does this look better? (https://davesredistricting.org/join/3eaa9706-6699-4adb-bd59-1acc030ae5ce)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on December 15, 2020, 03:42:03 PM
Does this look better? (https://davesredistricting.org/join/3eaa9706-6699-4adb-bd59-1acc030ae5ce)

I guess the Macomb/Oakland split district does make the rest of the map fit together a lot better


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 15, 2020, 05:11:45 PM
Does this look better? (https://davesredistricting.org/join/3eaa9706-6699-4adb-bd59-1acc030ae5ce)

You did a fine map, and clearly put a lot of effort in it. I don't prefer your deep jut into Oakland County, which has the effect of unnecessarily packing the black vote as well, depriving them of a third black influence CD, and the extension way out into the Thumb of a metro Detroit CD is not ideal, but on the other hand, the Flint, Saginaw, Bay City and Midland CD is nice, along with creating a CD of working and lower middle class whites by and large in Wayne and Monroe. So I acknowledge the map's compensating virtues.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: cvparty on December 15, 2020, 07:57:32 PM
Does this look better? (https://davesredistricting.org/join/3eaa9706-6699-4adb-bd59-1acc030ae5ce)
i’m curious, how would you draw a map without the second VRA district going north of southfield?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 15, 2020, 08:15:41 PM
Does this look better? (https://davesredistricting.org/join/3eaa9706-6699-4adb-bd59-1acc030ae5ce)
i’m curious, how would you draw a map without the second VRA district going north of southfield?

not sure yet, but have been playing with this (https://davesredistricting.org/join/ca828373-f1d1-436d-9710-6f66432fcde0).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Starry Eyed Jagaloon on December 15, 2020, 11:37:48 PM
Did a fair Michigan map where I murdered county lines in pursuit of COIs and compactness. Barring a landslide, it's 6R-5D-2S. Dingell and Moolenar both lose their districts (they could challenge Tlaib and Kildee, respectively) and an open Lansing-Kalamazoo district is created.

()


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: palandio on December 16, 2020, 05:33:14 AM
As I stated before, all seats have to be seen together and most Ann Arbor seats will be not ideal from a CoI point of view, so there has to be a discount for that.

The Lansing-Kalamazoo district looks like a deliberate choice that can be justified by "pairing two mid-sized metros with an orientation towards science and education" or something like that. It's not perfectly compact and gives vibes of partisan linedrawing but altogether it's probably defensible.

The Jackson-Southern Wayne district needs a very good explanation. What CoI is that seat supposed to represent? It's not particularly compact either if you define compactness by minimizing distances between people in the same district.

As is said every map will have its weak points and these can be weighed up if the rest of the map is particularly nice, but I wanted to point out where explanation would be needed, particularly when explicitly drawing a "CoI-driven" map.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on December 16, 2020, 06:54:02 AM
It looks like the 2nd is also open in that map, as I think Huizenga lives in Ottawa County. Eyeballing it, it looks like there's a chance it takes more electors from the current 4th than the current 2nd.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 16, 2020, 09:20:51 AM
I decided to put Midland in with Bay City, and made more precise the equalization of populations, and played around with how to round out the Grand Rapids CD. FWIW, I am absolutely convinced that the two black CD's are performing. They are around 44.0% and 45.4% BCVAP. That is enough in a Dem primary.

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 16, 2020, 10:50:57 AM
Its legal if under the VRA. The current map has it.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 16, 2020, 11:19:06 AM
Gotta say, I'm not a big fan of tossing Midland and Bay City into a district with the UP. Ideally they'd go with Saginaw since they seem to be a common region, but I understand that isn't always feasible. A little more questionable to me is linking Midland and Bay City to the UP--it's a bit odd IMO to put industrial and urban Bay City with some of the most rural territory in the lower 48.

Also don't love the split of Kalamazoo.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 16, 2020, 11:22:07 AM
In any case, sorry for being so persnickety. I know I keep on nitpicking others' maps--just trying to move closer to the Ideal Map. Apologies however if I'm causing offense.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Starry Eyed Jagaloon on December 16, 2020, 12:27:11 PM
The Lansing-Kalamazoo district looks like a deliberate choice that can be justified by "pairing two mid-sized metros with an orientation towards science and education" or something like that. It's not perfectly compact and gives vibes of partisan linedrawing but altogether it's probably defensible.

The Jackson-Southern Wayne district needs a very good explanation. What CoI is that seat supposed to represent? It's not particularly compact either if you define compactness by minimizing distances between people in the same district.

To understand how this map turned out, you have to consider where I started. I initially drew the Flint-Saginaw-Bay City and Thumb-Exurban Detroit seats. After slotting in the Oakland, Macomb, and Detroit seats, Downriver Wayne and Monroe had an annoying population that wouldn't pair with Washtenaw without an annoying split, caused by my choice to put Southfield in with Detroit to push both VRA seats above 45% AA. Thus, I chose to pair it with Jackson and some rurals to avoid splitting up a natural Ann Arbor COI, even though there's not much inherently linking the two areas.

As for Lansing and Kalamazoo, it's pretty simple. I didn't want to split the Grand Rapids and Southwest Michigan COIs so the only option without splitting Lansing and/or Kalamazoo-Battle Creek (a no-go in my opinion) was to pair the two.

I also think pairing Ann Arbor with Livingston and outer Oakland is probably the best choice from a COI perspective, so I'm happy with how that turned out.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 16, 2020, 12:36:07 PM
In any case, sorry for being so persnickety. I know I keep on nitpicking others' maps--just trying to move closer to the Ideal Map. Apologies however if I'm causing offense.


No, not at all. You have been polite and reasonable in all of my interactions with you, and are certainly entitled to your own opinions, particularly when you explain you reasoning, which is well, reasonable. :) Unfortunately, as you well know, there is no way to get all that one wants, and I certainly don't disagree that having Bay City and Saginaw in the same CD is a plus factor in a map.

One thing I look at with county chops is their size, along with the size of the chop of any municipality. In the case of Kalamazoo County, the size of the chop is about 22,600 people, or about 8% of  the population of the county. In other words, the chop is of a quite rural area, and does impinge on the City of Kalamazoo or its nearby suburbs, so it does not bother me that much personally.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: palandio on December 16, 2020, 01:17:27 PM
The Lansing-Kalamazoo district looks like a deliberate choice that can be justified by "pairing two mid-sized metros with an orientation towards science and education" or something like that. It's not perfectly compact and gives vibes of partisan linedrawing but altogether it's probably defensible.

The Jackson-Southern Wayne district needs a very good explanation. What CoI is that seat supposed to represent? It's not particularly compact either if you define compactness by minimizing distances between people in the same district.

To understand how this map turned out, you have to consider where I started. I initially drew the Flint-Saginaw-Bay City and Thumb-Exurban Detroit seats. After slotting in the Oakland, Macomb, and Detroit seats, Downriver Wayne and Monroe had an annoying population that wouldn't pair with Washtenaw without an annoying split, caused by my choice to put Southfield in with Detroit to push both VRA seats above 45% AA. Thus, I chose to pair it with Jackson and some rurals to avoid splitting up a natural Ann Arbor COI, even though there's not much inherently linking the two areas.

As for Lansing and Kalamazoo, it's pretty simple. I didn't want to split the Grand Rapids and Southwest Michigan COIs so the only option without splitting Lansing and/or Kalamazoo-Battle Creek (a no-go in my opinion) was to pair the two.

I also think pairing Ann Arbor with Livingston and outer Oakland is probably the best choice from a COI perspective, so I'm happy with how that turned out.
Yes, the problem is quite clear after all:

You start by creating the Flint-Saginaw-Bay City district, which blocks any possibility to shift around seats north of Livingston/Oakland.
St. Clair + Lapeer + Tuscola + Sanilac + Huron is slightly less than half a district quota (0.488 to be precise).
Wayne + Oakland + Macomb is 5.067 quotas, if you add Livingston, Washtenaw and Monroe you arrive at 5.986 quotas which is quite good. If you then add the Thumb you get 6.474 quotas and that's the problem. The best solution could be to take out Washtenaw (0.478 quotas) because then you're left with 5.996 quotas which is near perfection and Washtenaw would be difficult CoI-wise anyways.

Or you have the balls to do this and draw a Flint-Saginaw-Bay City district and a Huron Shore district that doesn't go to far into metro Detroit:
()


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Starry Eyed Jagaloon on December 16, 2020, 01:20:29 PM
The Lansing-Kalamazoo district looks like a deliberate choice that can be justified by "pairing two mid-sized metros with an orientation towards science and education" or something like that. It's not perfectly compact and gives vibes of partisan linedrawing but altogether it's probably defensible.

The Jackson-Southern Wayne district needs a very good explanation. What CoI is that seat supposed to represent? It's not particularly compact either if you define compactness by minimizing distances between people in the same district.

To understand how this map turned out, you have to consider where I started. I initially drew the Flint-Saginaw-Bay City and Thumb-Exurban Detroit seats. After slotting in the Oakland, Macomb, and Detroit seats, Downriver Wayne and Monroe had an annoying population that wouldn't pair with Washtenaw without an annoying split, caused by my choice to put Southfield in with Detroit to push both VRA seats above 45% AA. Thus, I chose to pair it with Jackson and some rurals to avoid splitting up a natural Ann Arbor COI, even though there's not much inherently linking the two areas.

As for Lansing and Kalamazoo, it's pretty simple. I didn't want to split the Grand Rapids and Southwest Michigan COIs so the only option without splitting Lansing and/or Kalamazoo-Battle Creek (a no-go in my opinion) was to pair the two.

I also think pairing Ann Arbor with Livingston and outer Oakland is probably the best choice from a COI perspective, so I'm happy with how that turned out.
Yes, the problem is quite clear after all:

You start by creating the Flint-Saginaw-Bay City district, which blocks any possibility to shift around seats north of Livingston/Oakland.
St. Clair + Lapeer + Tuscola + Sanilac + Huron is slightly less than half a district quota (0.488 to be precise).
Wayne + Oakland + Macomb is 5.067 quotas, if you add Livingston, Washtenaw and Monroe you arrive at 5.986 quotas which is quite good. If you then add the Thumb you get 6.474 quotas and that's the problem. The best solution could be to take out Washtenaw (0.478 quotas) because then you're left with 5.996 quotas which is near perfection and Washtenaw would be difficult CoI-wise anyways.

Or you have the balls to do this and draw a Flint-Saginaw-Bay City district and a Huron Shore district that doesn't go to far into metro Detroit:
()

Right. But I don't like either of those options so I cut Monroe and Downriver Wayne instead. Very early in the map-making process you have to choose whether to:

1. Do the ugly Thumb/Huron shore thing
2. Cut Midland/Bay City from Saginaw/Flint
3. Pair Washtenaw with Western Michigan
4. Pair Monroe/Downriver Wayne with Western Michigan.

I think 2 and 4 are the best options, and I picked the latter.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 16, 2020, 01:52:30 PM
1. Do the ugly Thumb/Huron shore thing
2. Cut Midland/Bay City from Saginaw/Flint
3. Pair Washtenaw with Western Michigan
4. Pair Monroe/Downriver Wayne with Western Michigan.

I think 2 and 4 are the best options, and I picked the latter.

I personally think option 3 is the best, since Ann Arbor is a bit of a separate thing from the rest of the metro. But since there seems to be some interest in doing 2 in particular I decided to try my hand at it.

Here's the link (https://davesredistricting.org/join/5d70fd53-2f41-4a16-8c8b-e08a92ab4f77).

Btw, is the Fenton area an exurban Detroit section? If not, I can switch it for some areas in St. Clair.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 16, 2020, 01:56:15 PM
Right. But I don't like either of those options so I cut Monroe and Downriver Wayne instead. Very early in the map-making process you have to choose whether to:

1. Do the ugly Thumb/Huron shore thing
2. Cut Midland/Bay City from Saginaw/Flint
3. Pair Washtenaw with Western Michigan
4. Pair Monroe/Downriver Wayne with Western Michigan.

I think 2 and 4 are the best options, and I picked the latter.

Also, I'm somewhat curious why you prefer 4 as well. Monroe I get since it's sort of its own thing (IIRC not in the Detroit metro?) but downriver Wayne is still pretty close to the heart of metro Detroit.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Starry Eyed Jagaloon on December 16, 2020, 02:06:18 PM
Right. But I don't like either of those options so I cut Monroe and Downriver Wayne instead. Very early in the map-making process you have to choose whether to:

1. Do the ugly Thumb/Huron shore thing
2. Cut Midland/Bay City from Saginaw/Flint
3. Pair Washtenaw with Western Michigan
4. Pair Monroe/Downriver Wayne with Western Michigan.

I think 2 and 4 are the best options, and I picked the latter.

Also, I'm somewhat curious why you prefer 4 as well. Monroe I get since it's sort of its own thing (IIRC not in the Detroit metro?) but downriver Wayne is still pretty close to the heart of metro Detroit.

Mostly because of what it borders. Downriver Wayne is very white and to its north are the two AA VRA seats separating it from the rest of the metro. The less white territory these seats take in the better, especially since they already have to deal with Dearborn and Western Wayne. Thus, Downriver has to go somewhere else. It's also sort of a cohesive cultural area with Monroe--the urban and suburban equivalent of NE Philly and Lower Bucks. It also allows for 48%+ VRA seats without a tentacle to Pontiac.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Starry Eyed Jagaloon on December 16, 2020, 02:30:20 PM
Downriver Split:

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Midland Split:

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Flint/Ann Arbor Split:

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 16, 2020, 03:24:15 PM
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Does this look good? (the two black seats are 45% and 45.3% black respectively)
https://davesredistricting.org/join/ca7bbf36-9aab-4ebb-8b09-46346f60fd15


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Idaho Conservative on December 16, 2020, 03:40:53 PM
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Does this look good? (the two black seats are 45% and 45.3% black respectively)
https://davesredistricting.org/join/ca7bbf36-9aab-4ebb-8b09-46346f60fd15

Oakland county looks weird


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 16, 2020, 03:51:49 PM
()
Does this look good? (the two black seats are 45% and 45.3% black respectively)
https://davesredistricting.org/join/ca7bbf36-9aab-4ebb-8b09-46346f60fd15

Oakland county looks weird
the Pontiac CD looks wonky but this is mainly to have a cleaner Oakland-Wayne leftovers district.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 16, 2020, 03:59:54 PM
()
Would this be preferable in Oakland?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 16, 2020, 04:15:55 PM
The Southfield jut is discordant to me. I preferred your prior chop of Oakland. But here is another version that you might consider, bearing in mind that Waterford Township is more than anything else a working and lower middle class suburb of Pontiac. I also prefer to keep Southfield and Pontiac together to make the CD one with more of a black influence. I think that your map overall however has a lot of merit to it. Well done. I have seen a lot of worthy maps actually. You guys are the best I have seen as a map drawing group overall. I am quite impressed. :)

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 16, 2020, 04:28:44 PM
The Southfield jut is discordant to me. I preferred your prior chop of Oakland. But here is another version that you might consider, bearing in mind that Waterford Township is more than anything else a working and lower middle class suburb of Pontiac. I also prefer to keep Southfield and Pontiac together to make the CD one with more of a black influence. I think that your map overall however has a lot of merit to it. Well done. I have seen a lot of worthy maps actually. You guys are the best I have seen as a map drawing group overall. I am quite impressed. :)

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I would find the first, second, and your one to be all acceptable. But the 1st is comparatively not as good generally, on the edges, so I guess I rule out going back to it. Second is better from a partisan representation perspective as well as a competitiveness perspective, creating two D+1 seats (it marks the likely # of Dem seats at 6.45). Your one on the other hand is better for compactness, while having a likely # of Dem seats at 6.20.
The two options also emphasize different CoIs. Second one creates a CD quite centered on the built-up eastern and immediately northern parts of Detroit metro and areas farther east and north as needed for population. It also unifies the north of Oakland. However, your option unifies the Eastern parts of Oakland on a mostly straight north-to-south line.
I'm fine with either.
Thanks for the kind words btw.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 17, 2020, 06:54:13 PM
At the margins, I fiddled around with Mr. Turner's map with which I find great favor in so many ways, to equalize populations a bit more precisely, and make it a more pleasing to my eye.

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 21, 2020, 04:18:03 PM
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Made this MI state senate map. It was aimed at gerrymandering to combat the Dem geographic disadvantage to the extent needed to reduce proportionality advantage, as measured by DRA, to less than 2% for either party.
There are 19 Clinton districts and 19 Trump districts. Regardless, disproportionality as measured by DRA is 1.74% (positive number thus GOP favoring) using 2012/2016 PVIs, and using the 2012-2018 Composite makes that -1.64% (negative number thus Dem favoring).
https://davesredistricting.org/join/29574965-fa9f-470b-9298-e724cee576e7


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on January 06, 2021, 07:27:38 PM
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Did something similar but for State House of Representatives.
There are 44 Clinton districts and 66 Trump districts. Disproportionality as measured by DRA is 3.98% (positive number thus GOP favoring) using 2012/2016 PVIs, and using the 2012-2018 Composite makes that 1.45%.
https://davesredistricting.org/join/09e21e00-9ec9-433b-b138-e3e3798235ba


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: jimrtex on February 25, 2021, 10:00:09 PM
Has anyone been following the Michigan redistricting commission?

I watched the lottery to choose the commissioners, but haven't watched any of the actual meetings.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Thunder98 🇮🇱 🤝 🇵🇸 on July 04, 2021, 06:47:52 PM
Here's a 7 Biden - 6 Trump MI map.

https://davesredistricting.org/join/c34d72ab-9b73-429a-a227-249b6f45ff4a

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on July 04, 2021, 08:20:30 PM
The big questions around MI will be if Grand Rapids gets it's own district and if Ann Arbor is placed with Detroit and rurals.

My guess is the commission tries to create a lot of competative districts, something which is very doable in MI. MI geography sucks for Ds so I hope Ann Arbor isn't packed with downtown Detroit.

()

Here's my attempt. I think 7-6 Biden is prolly the most fair map, but I really hope we'll see a lot of competative districts are gerrymandering elsewhere will likely make for a small House battleground


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on August 05, 2021, 06:51:46 PM
If this is legit - It seems like the commission is going forward with the Flint+Thumb configuration.   Also Ann Arbor is separated from the Detroit districts.   Lansing almost certainly gets it's own district too.  

The "West" region is kinda vague on what will happen there though.

Looks like Kildee is screwed.



Edit - It's on their website under the August 5th meeting notes, so I guess it's real.

https://www.michigan.gov/micrc/0,10083,7-418-106525---,00.html


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on August 05, 2021, 07:25:30 PM
If this is legit - It seems like the commission is going forward with the Flint+Thumb configuration.   Also Ann Arbor is separated from the Detroit districts.   Lansing almost certainly gets it's own district too.  

The "West" region is kinda vague on what will happen there though.

Looks like Kildee is screwed.


Edit - It's on their website under the August 5th meeting notes, so I guess it's real.

https://www.michigan.gov/micrc/0,10083,7-418-106525---,00.html
2019 population figures, DRA: (# of CDs each gets)
UP 301,863 (0.394) 57-41 Trump
NE 202,846 (0.265) 66-33 Trump
NW 304,272 (0.397) 57-42 Trump
E 849,061 (1.108) 56-43 Trump
EC 561,913 (0.724) 55-44 Trump
W 1,594,515 (2.080) 55-44 Trump
SC 478,430 (0.624) 57-41 Biden
Metro Detroit 3,880,770 (5.063) 59-40 Biden
SE 1,009,286 (1.317) 51-48 Biden
SW 782,309 (1.021) 51-47 Trump

https://davesredistricting.org/join/5eb62e67-4615-4085-8c67-aee19bc41ed8


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on August 05, 2021, 08:54:02 PM
https://davesredistricting.org/join/b9e84208-7e5e-4fd1-b1fb-23230a1c58fc
Map I made on basis of these regions.
5 seats nested entirely within Detroit. Lines were drawn to be compact. 11th becomes white plurality but remains black performing, shifting more into Oakland. The bulk of Detroit forms the core of the new MI-12. There is a clear Lansing CD, and a CD in Michiana that has land borders that are two perfect straight lines. 4 Clinton districts, 10 Whitmer districts, 6 Stabenow districts, 5 Peters districts, and 7 Biden districts.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on August 06, 2021, 11:39:36 AM
Ok this is interesting.

I feel like there's upsides for both sides. The upside for the GOP is it seems pretty unlikely MI-5 is going to be protected and at worst will be an R-leaning swing district but at best safe R. Furthermore, it seems like MI-6 is going to be protected which eliminates any chance of a Grand Rapids - Kalamazoo district to help things be partisansly proportionate.

The good news for Dems is that Ann-Arbor isn't packed into Detroit, meaning there's a very good chance MI-7 or it's equivalent went to Biden by a handy amount

I think people forget that MI-8 in it's current for is already kinda Lansing based district, albiet not the most objective one. A Lansing based district does not automatically mean a Biden district; this district will likely be marginal either way.

As another user pointed out "West" is kinda vague and leaves open to interpretation what will happen with Grand Rapids. However, with that being said, I don't think it's a coincidence that the "West" region is almost exactly the population for 2 districts.

Simillar to Lansing, a Grand Rapids based district doesn't automatically mean a Biden district; it's likely to be pretty marginal either way but with a good chance to become a more reliable district for Dems over the decade.

So in conclusion, seems like Dems will prolly get 4 Detroit area districts (1 of the 5 will prolly be an R-leaning one based in Macomb), and another Ann-Arbor district. Lansing and Grand Rapids will probably be swing districts. 6 will probably lean R, alongside whatever happens to MI-5 and the pandhandle, and the rest will; be pretty safe R.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on August 06, 2021, 04:36:35 PM
MI-6 (southwest Kalamazoo area) likely loses Allegan county based on this, which is heavily conservative. 

It will probably be fine for the GOP in 2022, but in 2024 onward it could become a swing district, particularly if Fred Upton retires.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Pericles on August 06, 2021, 08:49:31 PM
How about this map?
2020 President
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2020 Senate
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It's not fair proportionally, but it follows the regions and does reasonably well in keeping communities together. By the way, the 8th district in this map is Trump +0.1% and the 11th is Trump +0.0% (212 votes), so Slotkin would have won by slightly more while Stevens would have lost.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on August 06, 2021, 09:16:09 PM
Here's what I came up with -

https://davesredistricting.org/join/4ab8ca07-c90a-48cc-9910-c1f6905b8a6e

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Northeast and East Central actually make a near perfect district but then the map ends up in a weird spot with Northwest going south and crunching West and Southwest.  

I opted to combine the northern three into MI-1 and give the slight excess to East Central.  

Giving the South Central region Livingston is a no-brainer really, all you need then is some of Jackson and it's good.

I didn't bother with the five Detroit districts, don't see much point.   Two VRA seats, Oakland and Macomb seats, and then a remainder of Wayne (maybe part of Oakland, depending) for the fifth, the end.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: S019 on August 07, 2021, 12:45:52 AM
As other have said in this thread it seems quite likely that the parties could trade Wahlberg's and Kildee's seat if the geographic divisions are followed, imo, these divisions are a good thing for Democrats since a. Kildee's seat is probably on borrowed time anyways, b. the chance for a competitive Lansing and Grand Rapids district is preserved and c. Democrats can get an extra seat by pairing Ann Arbor with its red neighbors and still hold onto most of their metro Detroit seats.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: S019 on August 08, 2021, 07:03:19 PM
I guess the way things work is you get one bad tea leaf for every good one :(:


Hopefully this doesn't mean too much 😬


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Zaybay on August 08, 2021, 07:44:59 PM
I guess the way things work is you get one bad tea leaf for every good one :(:


Hopefully this doesn't mean too much 😬

This means almost nothing, the law firm hired has no impact on how the lines are drawn. All these guys are supposed to do is defend whatever map the commission draws. Now, if these folks were the consulting firm hired, then we'd have a story.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on August 08, 2021, 08:17:13 PM
Considering it was a random lottery and that often "Independents" aren't really Independent, the commission could easily lean a bit left or right, though it's hard to tell if this is the case rn based on available info.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on August 08, 2021, 08:18:18 PM


I don't think this means much.   The lawyers would basically play the role of saying what's allowed and not allowed when they draw the map, but that wouldn't be the final say on what's allowed to be drawn.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Biden his time on August 11, 2021, 03:19:54 PM
I tried my hand at a fair 13-district map of Michigan.

()

Image Link (https://talkelections.org/FORUM/GALLERY/31773_11_08_21_2_58_11.png)

The Population Deviation is 0.01%, and it reflects 2015 - 2019 ACS Data.

60/100 on Dave's Proportionality Index
88/100 on the Compactness Index
81/100 on County Splitting
58/100 on the Minority Representation index
57/100 on Dave's competitiveness index

The map above shows results from the 2020 U.S. Presidential Election.

Check it out here and see county and municipality boundaries. (https://davesredistricting.org/join/51ba89bd-f318-4668-938d-4c2195f73789)



Partisan Breakdown by Election

2016 U.S. Presidential Election in Michigan: 9R to 4D

2018 Michigan Attorney General Election: 8R to 5D

2018 U.S. Senate Election in Michigan: 7D to 6R

2018 Michigan Gubernatorial Election: 10D to 3R

2020 U.S. Senate Election in Michigan: 8R to 5D

2020 U.S. Presidential Election in Michigan: 7R to 6D



Opinions?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on August 15, 2021, 08:39:12 PM
Using the regions the commission posted it's possible to make 2 northern districts using whole counties and keep most of the regions together, just have to give Kalkaska to Northeast/East Central.

It pushes the Ottawa district south which is part of the southwest region, but the map still looks fine.  

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https://davesredistricting.org/join/f1ebc24d-66b3-4e54-8f55-66480b747c95

It's possible to inch the two VRA district's BVAP up to 50%, but it probably requires municipality splits.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tekken_Guy on August 15, 2021, 11:26:11 PM
Using the regions the commission posted it's possible to make 2 northern districts using whole counties and keep most of the regions together, just have to give Kalkaska to Northeast/East Central.

It pushes the Ottawa district south which is part of the southwest region, but the map still looks fine.  

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https://davesredistricting.org/join/f1ebc24d-66b3-4e54-8f55-66480b747c95

It's possible to inch the two VRA district's BVAP up to 50%, but it probably requires municipality splits.

A few questions here:

Would Debbie Dingell run in the Western Wayne district or the Washtenaw-based district here?

What happens to the Oakland County reps (Stevens, Slotkin, Levin, Lawrence)? They all live in Oakland but there's only two seats in the county.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on August 16, 2021, 08:37:27 AM
Using the regions the commission posted it's possible to make 2 northern districts using whole counties and keep most of the regions together, just have to give Kalkaska to Northeast/East Central.

It pushes the Ottawa district south which is part of the southwest region, but the map still looks fine.  

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https://davesredistricting.org/join/f1ebc24d-66b3-4e54-8f55-66480b747c95

It's possible to inch the two VRA district's BVAP up to 50%, but it probably requires municipality splits.

A few questions here:

Would Debbie Dingell run in the Western Wayne district or the Washtenaw-based district here?

What happens to the Oakland County reps (Stevens, Slotkin, Levin, Lawrence)? They all live in Oakland but there's only two seats in the county.

No idea about Dingell.

It's possible to add a third district to Oakland.  I don't think the commission is going to add multiple county splits just to satisfy incumbents though,  most likely only 1 non-detroit metro district goes into the Detroit Metro region to equalize population IMO.

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: CookieDamage on August 16, 2021, 07:21:55 PM
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Two attempts at a DEM gerrymander. I prefer the latter one.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on August 17, 2021, 07:26:55 AM
What's the purpose of splitting the UP? It doesn't look like the western district is a particularly realistic Democratic prospect, so it doesn't look worth the effort.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on August 17, 2021, 12:09:15 PM
https://davesredistricting.org/join/b9e84208-7e5e-4fd1-b1fb-23230a1c58fc
Map I made on basis of these regions.
5 seats nested entirely within Detroit. Lines were drawn to be compact. 11th becomes white plurality but remains black performing, shifting more into Oakland. The bulk of Detroit forms the core of the new MI-12. There is a clear Lansing CD, and a CD in Michiana that has land borders that are two perfect straight lines. 4 Clinton districts, 10 Whitmer districts, 6 Stabenow districts, 5 Peters districts, and 7 Biden districts.
A shame my MI-06 doesn't work under the actual 2020 numbers...


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on August 17, 2021, 01:58:07 PM
Here's an interesting way to do it, whole counties everywhere except what South Central region needs to fill in the population, along with the Detroit Metro obviously.

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on August 17, 2021, 04:17:06 PM
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The basis for this map was 2 black seats entirely within Wayne and seeing how it influenced the map overall. I also designed the map to have 7 Biden districts.
https://davesredistricting.org/join/294fb031-bfd7-4fce-8a28-1c004b2ce17b
This was the result.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: CookieDamage on August 17, 2021, 05:01:04 PM
What's the purpose of splitting the UP? It doesn't look like the western district is a particularly realistic Democratic prospect, so it doesn't look worth the effort.

I mean what effort? Took two seconds on DRA and besides it looks fun and unique, not like other girls (single UP districts)

EDIT: It could also go very narrowly DEM in a wave or special election with a horrible GOP-er.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: S019 on August 23, 2021, 04:04:24 PM
Here's where the draft state maps stand:





Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on August 23, 2021, 04:08:05 PM
Here's where the draft state maps stand:





Those maps are oddly satisfying


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 23, 2021, 04:11:35 PM
Here's where the draft state maps stand:





Those maps are oddly satisfying

They had actual ok maps* and then they remade into these. They split up Ypsilanti and Ann Arbor and East Lansing and Lansing.
Somehow Ypsilanti and Ann Arbor have "different" values according to Dem hack public comments but Monroe County and Ypsilanti make perfect sense to place together.
This districting process is equally as bad as the 2010 process but at least the 2010 process faced media criticism.
I now 100% oppose independent commissions because at least partisan gerrymandering is in the public light instead of all this stuff.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on August 23, 2021, 04:34:24 PM
Here's where the draft state maps stand:





Those maps are oddly satisfying

They had actual ok maps* and then they remade into these. They split up Ypsilanti and Ann Arbor and East Lansing and Lansing.
Somehow Ypsilanti and Ann Arbor have "different" values according to Dem hack public comments but Monroe County and Ypsilanti make perfect sense to place together.
This districting process is equally as bad as the 2010 process but at least the 2010 process faced media criticism.
I now 100% oppose independent commissions because at least partisan gerrymandering is in the public light instead of all this stuff.

Nah the real reason the college towns were split was because that proposed map had only 2 Dem districts, both safe, and 5 GOP ones. Then as few people noted that Biden won the region overall and the commission as a whole couldn't justify giving R's a supermajority of seats in this region with that data.

Note that I don't exactly think drawing a map one region at a time is all that good cause it leads to situations like this, when you look at one region without its impact on the whole. The Commission is going to find it rather hard to get more than 1 R seat out of Wayne for instance.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 23, 2021, 04:37:08 PM
Here's where the draft state maps stand:





Those maps are oddly satisfying

They had actual ok maps* and then they remade into these. They split up Ypsilanti and Ann Arbor and East Lansing and Lansing.
Somehow Ypsilanti and Ann Arbor have "different" values according to Dem hack public comments but Monroe County and Ypsilanti make perfect sense to place together.
This districting process is equally as bad as the 2010 process but at least the 2010 process faced media criticism.
I now 100% oppose independent commissions because at least partisan gerrymandering is in the public light instead of all this stuff.

Nah the real reason the college towns were split was because that proposed map had only 2 Dem districts, both safe, and 5 GOP ones. Then as few people noted that Biden won the region overall and the commission as a whole couldn't justify giving R's a supermajority of seats in this region with that data.

No it is obvious lying because they said they weren't even going to look at partisan data today.  Maybe they could justify it later on other grounds but today on COI grounds the idea that Monroe and Ypsilanti belong together just show independent commissions are useless. The intent is obviously partisan in the end but they left that secret and tried to justify it on the most absurd grounds possible. There is 0 point to this charade when they are just drawing what a Democratic legislature would have drawn with previous Michigan rules which still limited township and county splits.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on August 23, 2021, 10:14:54 PM
Here's where the draft state maps stand:





Those maps are oddly satisfying

They had actual ok maps* and then they remade into these. They split up Ypsilanti and Ann Arbor and East Lansing and Lansing.
Somehow Ypsilanti and Ann Arbor have "different" values according to Dem hack public comments but Monroe County and Ypsilanti make perfect sense to place together.
This districting process is equally as bad as the 2010 process but at least the 2010 process faced media criticism.
I now 100% oppose independent commissions because at least partisan gerrymandering is in the public light instead of all this stuff.

You can watch this process on YouTube. It's extreamly transparent. They are following the rules set forth by the Michigan State Constitution which literally puts partisan fairness over county/city/township lines or compactness. Thankfully we have Independent member Anthony Eid to make sure the Michigan Constitution is upheld.  

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on August 23, 2021, 10:19:58 PM
Here's where the draft state maps stand:





Those maps are oddly satisfying

They had actual ok maps* and then they remade into these. They split up Ypsilanti and Ann Arbor and East Lansing and Lansing.
Somehow Ypsilanti and Ann Arbor have "different" values according to Dem hack public comments but Monroe County and Ypsilanti make perfect sense to place together.
This districting process is equally as bad as the 2010 process but at least the 2010 process faced media criticism.
I now 100% oppose independent commissions because at least partisan gerrymandering is in the public light instead of all this stuff.

You can watch this process on YouTube. It's extreamly transparent. They are following the rules set forth by the Michigan State Constitution which literally puts partisan fairness over county/city/township lines or compactness. Thankfully we have Independent member Anthony Eid to make sure the Michigan Constitution is upheld.  

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I watched the process and they said they were not focusing on partisanship at all today and they didn't mention partisan data today. Eid managed to bs his way. I assume they would adjust later but trying to defend Monroe and Ypsi over Ypsi and AA is an absolute joke from any perspective but pure partisanship.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: It’s so Joever on August 24, 2021, 10:45:15 AM
Ypsilanti does not belong with Ann Arbor. Trying to argue it does is pure partisan hackery on your part.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Stuart98 on August 24, 2021, 10:54:28 AM
Ypsilanti does not belong with Ann Arbor. Trying to argue it does is pure partisan hackery on your part.
Noted non-partisan redistricting expert, Forumlurker.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on August 26, 2021, 11:51:02 PM
Today was mainly state house districts in the Upper Peninsula and north of the state. No real surprises, most decisions were made off population when it comes to this region, though I think the pop shifts made the Marquette seat bluer. There also is this potential swing district:



Seems like a gift for the Dems, though given that Grand Traverse must be cut maybe this works out best with the county pop totals of the region. Or maybe a forward thinking GOP expects the lakefront vacation area to become Dem before the end of the decade and wants a future pack. Or maybe people want competitive seats in regions that are safe for one party or the other.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on August 27, 2021, 12:30:56 AM
Here are the official Communities of Interest clusters. A brief description of how they were created:

Quote
This is an initial round of COI clusters, or "emergent COIs," extracted from public commentary from March through July. We will produce a second and final round incorporating August submissions as well, to be delivered on September 1. We chose a data resolution that produced 36 clusters, which are numbered A1–A36. This choice can be varied, but it’s important to consider usability by the commission, balanced with ensuring sucient richness of the supporting data.



Matching the maps to these clusters is the 3rd most important criteria set forth by the Michigan Constitution. Only behind following federal law and being contiguous.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on August 30, 2021, 09:15:44 AM
The Commission is going to start drawing Congressional districts today. Going to start in the UP/North before heading to the Southeast and Lansing areas.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on August 30, 2021, 10:46:00 AM
The Commission is going to start drawing Congressional districts today. Going to start in the UP/North before heading to the Southeast and Lansing areas.
Is there a way to watch this happen live, like with the Utah redistricting?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on August 30, 2021, 10:58:57 AM
The Commission is going to start drawing Congressional districts today. Going to start in the UP/North before heading to the Southeast and Lansing areas.
Is there a way to watch this happen live, like with the Utah redistricting?

They should live stream it on YT. I’ll post a link if I see it.

Here’s a channel link: https://m.youtube.com/user/MichSoSOffice/featured


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on August 30, 2021, 11:07:47 AM
The Commission is going to start drawing Congressional districts today. Going to start in the UP/North before heading to the Southeast and Lansing areas.
Is there a way to watch this happen live, like with the Utah redistricting?

Link: https://m.youtube.com/watch?v=jbrlWzWRYgg&list=PLeyRQ8IgEZlZnfTFzpSo-hJct7R3d8UjQ&index=1


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on August 30, 2021, 11:52:01 AM
Welp seems like they aren't gonna be drawing the districts today that's underwhelming lol.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Canis on August 30, 2021, 12:40:14 PM
Welp seems like they aren't gonna be drawing the districts today that's underwhelming lol.
Where are you getting that from? I have it playing while im doing my opening fall classes lol they voted to skip drawing districts in the eastern part of the state. They just drew the first district


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on August 30, 2021, 12:58:05 PM
Welp seems like they aren't gonna be drawing the districts today that's underwhelming lol.
Where are you getting that from? I have it playing while im doing my opening fall classes lol they voted to skip drawing districts in the eastern part of the state. They just drew the first district

Right now they're drawing the state Senate districts, not the US House districts.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Canis on August 30, 2021, 01:03:03 PM
Welp seems like they aren't gonna be drawing the districts today that's underwhelming lol.
Where are you getting that from? I have it playing while im doing my opening fall classes lol they voted to skip drawing districts in the eastern part of the state. They just drew the first district

Right now they're drawing the state Senate districts, not the US House districts.
Thanks for clarifying!


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on August 31, 2021, 04:13:46 PM


Work from today in Western MI. There additionally is a Holland seat and Muskegon planned out. However, the outer Muskegon competitive seat looks to be scrapped for the future, with the outer bits of the county going with other rural areas.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on August 31, 2021, 04:19:28 PM
The House map will go from 2 safe D districts in Kent to 4,  with an additional competitive seat after that.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Non Swing Voter on August 31, 2021, 04:39:32 PM
Is that UMich twitter guy a poster here?  I see his links all the time.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Non Swing Voter on August 31, 2021, 04:41:26 PM
The Democrats seem really happy about the Western Michigan changes.  They are pointing out that rural areas previously had too much influence.  I wonder how much of a factor population decline in rural areas is. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Stuart98 on August 31, 2021, 09:03:01 PM
The House map will go from 2 safe D districts in Kent to 4,  with an additional competitive seat after that.
Only three safe seats; one of the double digit Biden seats is ancestrally Republican and voted for James in 2018 senate (though it voted for Peters last year).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on September 16, 2021, 02:20:16 PM
https://www.youtube.com/watch?v=wm7TK2d_heQ

They drawing CDs right now


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on September 16, 2021, 03:00:11 PM
Draft senate map can be found HERE (https://www.mlive.com/public-interest/2021/09/see-the-michigan-redistricting-commissions-proposed-state-senate-districts.html).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on September 16, 2021, 03:55:35 PM
https://www.youtube.com/watch?v=wm7TK2d_heQ

They drawing CDs right now

They're offline now. They seem to have finished (?) drawing the two Detroit CDs in Wayne County plus started drawing a third district in southern Oakland County. Interestingly, they did not go into Oakland County at all for the Detroit CDs it seems.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Non Swing Voter on September 16, 2021, 04:05:02 PM
Draft senate map can be found HERE (https://www.mlive.com/public-interest/2021/09/see-the-michigan-redistricting-commissions-proposed-state-senate-districts.html).

It looks normal?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: S019 on September 16, 2021, 04:45:55 PM
Does anyone know if how they drew Detroit is legal? To me, it looks like they packed black voters into one seat.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on September 16, 2021, 04:48:39 PM
Does anyone know if how they drew Detroit is legal? To me, it looks like they packed black voters into one seat.

They were discussing it in the commission and it seems likely it’ll change and their districts “1 and 2” will swap some population. Ig they’re waiting for the input of some civil weights person


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on September 16, 2021, 05:08:58 PM
The Detroit district is only 51.2% black from my rough calculations. You wouldn't swap between 1 and 2. If you want to up 2's black % you should just swap super white Livonia for  very black  Southfield and Southfield township(Not a black town but Southfield city + town is basically the pop of Livonia.)
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This should probably work it out as green becomes 46.7 black.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on September 16, 2021, 05:15:23 PM
The Detroit district is only 51.2% black from my rough calculations.

Yeah it looks like less a case of the Detroit seat getting overpacked - the bit of Macomb sees to that - more a case that Detroit doesn't have enough AAs for a second seat on its own. You gotta go into Oakland and get Southfield or a bit more if two seats with 50% AA, or close to it, is the preferred outcome. If you only want say two 40ish seats then Wayne has enough to work with, though reducing it is sketchy since there is an argument MI-13 failed to elect the preferred candidate of African Americans in 2018.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on September 16, 2021, 08:11:52 PM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Devils30 on September 16, 2021, 09:17:26 PM
https://twitter.com/Redistrict/status/1438684330830745604

Yep, there is no chance in hell that one Dem signs off on this, much less 2.

It could become a Dem trendymander by 2026-30 but for 2022 no way Dems would approve.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Non Swing Voter on September 16, 2021, 10:08:17 PM
What happens if the commission can't agree in MI?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on September 17, 2021, 09:24:06 PM
This map is god awful.

I was watching a bit of the map drawing and it def wasn't drawn with partisan intent, it more seems like they were clueless. They started in Detroit so district 1 and 2 had great implications for the rest of the map it seems.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on September 17, 2021, 09:31:05 PM
That 1st is awful.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Green Line on September 18, 2021, 12:43:47 AM
This is a very fair map.  Im surprised the Democrat members allowed something so fair to be released.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on September 20, 2021, 11:05:34 AM
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Eid proposes an all-around better map, though I personally never like Ottawa-Grand Rapids.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on September 20, 2021, 11:16:20 AM
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Eid proposes an all-around better map, though I personally never like Ottawa-Grand Rapids.

Seems to be a vocal contingent in the committee that is not a fan of this map, which is concerning. Saying that Eid's map doesn't respect the Bangladeshi COI.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on September 20, 2021, 11:38:36 AM
This is a very fair map.  Im surprised the Democrat members allowed something so fair to be released.

Everything they say or do is public and available on YouTube.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on September 20, 2021, 11:51:05 AM
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Eid proposes an all-around better map, though I personally never like Ottawa-Grand Rapids.

This is a much better map.   I think even Republicans would like the 6, 7, 8 configuration better really.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: GALeftist on September 20, 2021, 12:31:15 PM
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Eid proposes an all-around better map, though I personally never like Ottawa-Grand Rapids.

What's the partisan breakdown of this map? I'm pretty sure that would be 8-5 Biden-Trump in 2020; would it be 8-5 Trump-Clinton in 2016?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on September 20, 2021, 12:57:49 PM
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Eid proposes an all-around better map, though I personally never like Ottawa-Grand Rapids.

What's the partisan breakdown of this map? I'm pretty sure that would be 8-5 Biden-Trump in 2020; would it be 8-5 Trump-Clinton in 2016?

Dems win the two Detroit seats and the Ann Arbor seat obviously, his version of 9 appears concise and safe, others have already shown that this mid-cities seat goes blue, 4 should be tight and marginal Biden just looking at numbers, and I ran the dra on 3 and its essentially a tie, I think with Biden up.

So 6-1-6, but the Macomb seat lacks some of the very red areas so that seat is probably marginal, along with 6. So more 4-2-1-2-4 between safe/competitive seats for either party.

Trump definitely won 3 and 4 in 2016 here, so 5-8 for the topline under that election.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on September 20, 2021, 05:19:29 PM
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Eid proposes an all-around better map, though I personally never like Ottawa-Grand Rapids.

Seems to be a vocal contingent in the committee that is not a fan of this map, which is concerning. Saying that Eid's map doesn't respect the Bangladeshi COI.
What is even the "Bangladeshi CoI"?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on September 20, 2021, 05:22:43 PM

Eid proposes an all-around better map, though I personally never like Ottawa-Grand Rapids.

Seems to be a vocal contingent in the committee that is not a fan of this map, which is concerning. Saying that Eid's map doesn't respect the Bangladeshi COI.
What is even the "Bangladeshi CoI"?

A seat winnable by Tlaib that gets Muslins from the Dearborns, Hamtramck, and a few suburbs to their west all together.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on September 20, 2021, 05:33:42 PM

Eid proposes an all-around better map, though I personally never like Ottawa-Grand Rapids.

Seems to be a vocal contingent in the committee that is not a fan of this map, which is concerning. Saying that Eid's map doesn't respect the Bangladeshi COI.
What is even the "Bangladeshi CoI"?

A seat winnable by Tlaib that gets Muslins from the Dearborns, Hamtramck, and a few suburbs to their west all together.
I see.
How likely is it we see Debbie Dingell and Tliab forced into a primary?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on September 20, 2021, 05:37:23 PM
Wait the commission is actually worried about VRA stuff outside of Wayne and Oakland and Macomb lol.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on September 28, 2021, 07:47:06 PM
So the four proposals that the commission released yesterday all look like total nightmares

https://projects.fivethirtyeight.com/redistricting-2022-maps/michigan/first_proposal/

Map 4 isn't even contiguous, I don't know why they even put that out.

The other three might as well have been drawn by the Republican legislature (especially the first).  

They all pack Ann Arbor with the Detroit suburbs, put Levin in an unwinnable seat, most likely doom Kildee (although that's expected anyway), and give all the R incumbents safe seats (even Upton) except Meijer, whose in the Grand Rapids district.

The median seat in all three workable maps is at least R+5.3, where Biden won the state by 2.78%.  

If they pass the first map, Michigan could very well end up with a 9R-4D delegation in 2023.

Why are the worst maps of this cycle coming from two Ind Commission states (Michigan and Colorado)?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on September 28, 2021, 08:11:26 PM
So the four proposals that the commission released yesterday all look like total nightmares

https://projects.fivethirtyeight.com/redistricting-2022-maps/michigan/first_proposal/

Map 4 isn't even contiguous, I don't know why they even put that out.

The other three might as well have been drawn by the Republican legislature (especially the first).  

They all pack Ann Arbor with the Detroit suburbs, put Levin in an unwinnable seat, most likely doom Kildee (although that's expected anyway), and give all the R incumbents safe seats (even Upton) except Meijer, whose in the Grand Rapids district.

The median seat in all three workable maps is at least R+5.3, where Biden won the state by 2.78%.  

If they pass the first map, Michigan could very well end up with a 9R-4D delegation in 2023.

Why are the worst maps of this cycle coming from two Ind Commission states (Michigan and Colorado)?

Honestly map 4 wouldn't be too bad if it weren't for the fact it weren't contiguous. I feel like technically from a COI standpoint Ann-Arbor fits better with white Detroit burbs but from a partisanship standpoint, "unpacking" the Detroit metro is the right thing to do.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on September 28, 2021, 09:04:25 PM
Map 4 is the least bad.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on September 28, 2021, 11:28:01 PM
I don't think those maps are really too bad? There are other ways to make it more competitive of course--and like a lot of commission maps this cycle they're all sort of untidy--but tbh those maps aren't totally nonsensical wrt:CoI.

Actually I'd argue that the 4th is the worst, not just because of the noncontiguity but also because tbh imo Muskegon+GR is a Dem gerrymander. Kent and Ottawa are the most obvious county combo in existence.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Antonio the Sixth on September 29, 2021, 03:44:23 AM
Map 3 seems the best by all accounts. I understand why it'd be frustrating for Democrats, but Michigan's political geography is just not great for them in the state and has become worse since 2016. Map 3 is fairly compact and preserves COIs (in fact it unpacks the Detroit area somewhat).

Map 1 is an obvious R gerrymander (splitting Flint and Saginaw is pure trolling), and Map 4 is non-contiguous so I'm not even sure how they released it. Maps 2 and 3 are acceptable, though hopefully some shifts can be made to shore up Dems further while respecting COIs.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Virginiá on September 29, 2021, 06:41:29 AM
Map 3 seems the best by all accounts. I understand why it'd be frustrating for Democrats, but Michigan's political geography is just not great for them in the state and has become worse since 2016. Map 3 is fairly compact and preserves COIs (in fact it unpacks the Detroit area somewhat).

Map 1 is an obvious R gerrymander (splitting Flint and Saginaw is pure trolling), and Map 4 is non-contiguous so I'm not even sure how they released it. Maps 2 and 3 are acceptable, though hopefully some shifts can be made to shore up Dems further while respecting COIs.

Maps are likely going to have to be adjusted anyway. Partisan fairness has a higher priority than compactness and splits in the criteria.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on September 29, 2021, 07:51:26 AM
Map 3 seems the best by all accounts. I understand why it'd be frustrating for Democrats, but Michigan's political geography is just not great for them in the state and has become worse since 2016. Map 3 is fairly compact and preserves COIs (in fact it unpacks the Detroit area somewhat).

Map 1 is an obvious R gerrymander (splitting Flint and Saginaw is pure trolling), and Map 4 is non-contiguous so I'm not even sure how they released it. Maps 2 and 3 are acceptable, though hopefully some shifts can be made to shore up Dems further while respecting COIs.
The first map was just a draft plan they drew up and ran out of space.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on September 29, 2021, 01:30:42 PM
They are discussing right now combining Grand Rapids with either Kalamazoo or Muskegon in the Congressional map.



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on September 29, 2021, 01:34:52 PM
They are discussing right now combining Grand Rapids with either Kalamazoo or Muskegon in the Congressional map.



I personally always like the "lakeshore" version of 9 (CD02) in this proposal, mainly cause Ottawa is so culturally distinct from Grand Rapids, despite their commuter ties. Not sure about the rest, there are more compact ways to do the Kent County Seat and make it swing.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Skill and Chance on September 29, 2021, 02:01:14 PM
The same Obama era status quo bias that helped Republicans in CO and will likely help them in VA should help Democrats in MI. There's going to be a lot of pressure for Dems to have a majority of the delegation.  You could see a similar thing in court in PA.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Stuart98 on September 29, 2021, 04:33:24 PM
Prefer Grand Rapids-Muskegon to Grand Rapids-Kalamazoo, Kalamazoo should go in a district with Battle Creek.

Fair map:

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Pres 2020: ()


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Adam Griffin on September 30, 2021, 01:09:08 AM
I don't know le Michigan but I played around and came up with this. It could be anywhere from 9-4 D & 9-4 R depending on candidates/climate.

Stabenow won 7, Biden won 8, Whitmer won 9 (almost 10; CD-9), and Trump ('16) won 9 (almost 10; CD-7).

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Stuart98 on September 30, 2021, 09:33:15 AM
Looks like you've only got one black VRA district, which is illegal.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: It’s so Joever on September 30, 2021, 09:42:26 AM
They are discussing right now combining Grand Rapids with either Kalamazoo or Muskegon in the Congressional map.


Based?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on September 30, 2021, 12:07:55 PM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Antonio the Sixth on September 30, 2021, 12:12:47 PM
WTF, they went back to the drawing board in Detroit and made the Dem packing worse??


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on September 30, 2021, 12:23:26 PM
Why is it so hard for them to draw a good map?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on September 30, 2021, 12:56:45 PM
Why is it so hard for them to draw a good map?

Because they made the stupid decision to disregard partisan data until the end, even though it is constitutionally more important that boundaries and compactness.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on September 30, 2021, 12:59:07 PM
The best thing to do regarding partisan data is to use a Markov Chain Monte Carlo simulation and just make sure the map lies within the middle 33% of all maps IMO. That way no communities have to be broken up while you can still follow the law. Colorado did at least listen to this idea late in the commission. Probably too late for that by now though. I guess you would also have to program the simulation to draw 2 45% black seats.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on September 30, 2021, 01:22:10 PM
Hello, and welcome to Amateur Hour with the Michigan Independent Commission!


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Adam Griffin on September 30, 2021, 09:05:12 PM
Looks like you've only got one black VRA district, which is illegal.

Oh well, trade portions of 12 and 13 a bit (which actually makes their respective boundaries neater) and you can easily get 2 45% BVAP districts. Should be plenty enough in a state like MI to be considered a black-performing district. GOP obviously packed the hell out of the 2 black districts in 2011.

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on October 01, 2021, 10:21:42 AM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on October 01, 2021, 10:57:27 AM


Reminder that this map already is gerrymandered to split lansing and grand rapids in 2 to shoe the geographical bias.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on October 01, 2021, 11:01:51 AM


Reminder that this map already is gerrymandered to split lansing and grand rapids in 2 to shoe the geographical bias.

Gonna have to split some more, partisan fairness is constitutionally more important than municipal/county lines or compactness.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Antonio the Sixth on October 01, 2021, 11:07:46 AM


Reminder that this map already is gerrymandered to split lansing and grand rapids in 2 to shoe the geographical bias.

Gonna have to split some more, partisan fairness is constitutionally more important than municipal/county lines or compactness.

Tbh I really don't like that as a matter of policy, but I guess it's gonna make up for the hideous gerrymanders the GOP is about to do across the South.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on October 01, 2021, 11:22:03 AM
Handley strongly emphasizing that Michigan is not a 50-50 state but rather a 52-48 Democratic leaning state.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on October 01, 2021, 11:25:00 AM


Reminder that this map already is gerrymandered to split lansing and grand rapids in 2 to shoe the geographical bias.

Gonna have to split some more, partisan fairness is constitutionally more important than municipal/county lines or compactness.

Tbh I really don't like that as a matter of policy, but I guess it's gonna make up for the hideous gerrymanders the GOP is about to do across the South.

Technically just worth a note this is for a state senate map although congressional will go through the same cycle. The best solution is just use Markov Chain simulations for a partisan fairness test.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Virginiá on October 01, 2021, 11:27:24 AM
Handley strongly emphasizing that Michigan is not a 50-50 state but rather a 52-48 Democratic leaning state.

That's a mostly fair statement to make, given election results over the past 10+ years...

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Presidential

2012: 54.21% Obama  -  44.71% Romney
2016: 47.25% Trump  -  47.03% Clinton
2020: 50.62% Biden  -  47.84% Trump


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: It’s so Joever on October 01, 2021, 12:12:18 PM
Handley strongly emphasizing that Michigan is not a 50-50 state but rather a 52-48 Democratic leaning state.
BASED HANDLEY


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: palandio on October 01, 2021, 02:13:31 PM
The best thing to do regarding partisan data is to use a Markov Chain Monte Carlo simulation and just make sure the map lies within the middle 33% of all maps IMO. That way no communities have to be broken up while you can still follow the law. Colorado did at least listen to this idea late in the commission. Probably too late for that by now though. I guess you would also have to program the simulation to draw 2 45% black seats.

How would that MCMC work? You start with an initial map, possibly the one you want to evaluate and then step by step you propose random incremental changes that are accepted as long as certain measures (regarding e.g. compactness, integrity of administrative divisions, agglomerations, etc.) remain good enough (i.e. at least as good as the initial map). Then after some time you get a distribution of maps.

That all sounds good, but how do you choose the incremental changes? How do you make sure that the space of all admissible plans is contiguous?

In spring I came up with a metric and an optimization algorithm https://talkelections.org/FORUM/index.php?topic=432371.0 (https://talkelections.org/FORUM/index.php?topic=432371.0) based on a simulated annealing-like method that converged by default on a (not necessarily optimal) map. The result could be different between runs. In the case of Michigan the result was very clear: If I lowered the energy slowly enough, the fundamental layout was always the same (The MI maps posted on the old thread are from an earlier version of the program where I didn't use census tract like I used later, but the result is very similar):

1 North (Safe R)
2 West (Safe R)
3 Kent Co. and ca. two smaller counties in its East/SE (Tossup)
4 Tri-Cities and Huron Bay (Safe R)
5 Flint to Port Huron (Likely to Safe R) [pairing of Flint with Saginaw or the Tri-Cities sadly never remained stable]
6 SW, including Kalamazoo, Battle Creek, Berrien Co. (Lean R)
7 Lansing and Jackson (Tossup)
8 De-packed Ann Arbor, including Monroe Co. and most of Livingston Co. (Safe D)
9 Outer Oakland Co. (Tossup, but trending D)
10 Macomb Co. (Nowadays likely R)
11 Outer Wayne Co. (Likely D)
12, 13 Inner Wayne and Inner Oakland (both Safe D), would have to be reordered to be VRA-compliant


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on October 01, 2021, 02:23:48 PM
The best thing to do regarding partisan data is to use a Markov Chain Monte Carlo simulation and just make sure the map lies within the middle 33% of all maps IMO. That way no communities have to be broken up while you can still follow the law. Colorado did at least listen to this idea late in the commission. Probably too late for that by now though. I guess you would also have to program the simulation to draw 2 45% black seats.

How would that MCMC work? You start with an initial map, possibly the one you want to evaluate and then step by step you propose random incremental changes that are accepted as long as certain measures (regarding e.g. compactness, integrity of administrative divisions, agglomerations, etc.) remain good enough (i.e. at least as good as the initial map). Then after some time you get a distribution of maps.

That all sounds good, but how do you choose the incremental changes? How do you make sure that the space of all admissible plans is contiguous?

In spring I came up with a metric and an optimization algorithm https://talkelections.org/FORUM/index.php?topic=432371.0 (https://talkelections.org/FORUM/index.php?topic=432371.0) based on a simulated annealing-like method that converged by default on a (not necessarily optimal) map. The result could be different between runs. In the case of Michigan the result was very clear: If I lowered the energy slowly enough, the fundamental layout was always the same (The MI maps posted on the old thread are from an earlier version of the program where I didn't use census tract like I used later, but the result is very similar):

1 North (Safe R)
2 West (Safe R)
3 Kent Co. and ca. two smaller counties in its East/SE (Tossup)
4 Tri-Cities and Huron Bay (Safe R)
5 Flint to Port Huron (Likely to Safe R) [pairing of Flint with Saginaw or the Tri-Cities sadly never remained stable]
6 SW, including Kalamazoo, Battle Creek, Berrien Co. (Lean R)
7 Lansing and Jackson (Tossup)
8 De-packed Ann Arbor, including Monroe Co. and most of Livingston Co. (Safe D)
9 Outer Oakland Co. (Tossup, but trending D)
10 Macomb Co. (Nowadays likely R)
11 Outer Wayne Co. (Likely D)
12, 13 Inner Wayne and Inner Oakland (both Safe D), would have to be reordered to be VRA-compliant

Colorado asked for a fairly good study of MCMC recently
https://redistricting.colorado.gov/
Go to Meetings, Meeting materials congressional > sept 22> Ensemble. They had 2 versions. One which did not even consider county/township lines and another which did.

The commission didn't fully follow county lines but unlike a computer they still didn't chop every single county just like the 2nd set of data. In the end it shows that the Colorado map really isn't that R leaning.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: The Mikado on October 01, 2021, 02:38:30 PM
Rather than this stuff, why don't we just all switch to the Iowa system? Put in some parameters and the computer will spit out a map. Legislature votes yes or no. If no, try again and keep trying until you get one the legislature likes. (IA only tries three times before the lege can draw their own, but just make it keep going until you agree with the computer).

I'm growing unsatisfied with human amateurs on redistricting commissions.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on October 01, 2021, 02:45:53 PM
Rather than this stuff, why don't we just all switch to the Iowa system? Put in some parameters and the computer will spit out a map. Legislature votes yes or no. If no, try again and keep trying until you get one the legislature likes. (IA only tries three times before the lege can draw their own, but just make it keep going until you agree with the computer).

I'm growing unsatisfied with human amateurs on redistricting commissions.

The Iowa system works only because Iowa's demography is very simple from a redistricting perspective. It would be much harder to implement the Iowa system in almost any other state, and you might churn out maps that looked insane from a human perspective.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on October 01, 2021, 03:18:45 PM
Rather than this stuff, why don't we just all switch to the Iowa system? Put in some parameters and the computer will spit out a map. Legislature votes yes or no. If no, try again and keep trying until you get one the legislature likes. (IA only tries three times before the lege can draw their own, but just make it keep going until you agree with the computer).

I'm growing unsatisfied with human amateurs on redistricting commissions.

The Iowa system works only because Iowa's demography is very simple from a redistricting perspective. It would be much harder to implement the Iowa system in almost any other state, and you might churn out maps that looked insane from a human perspective.
I could see an Iowa style system creating a CD taking in all of Detroit, which is a bad idea in Michigan for...obvious reasons.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on October 01, 2021, 05:48:50 PM
MICRC has cranked out another horrible map.

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Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Born to Slay. Forced to Work. on October 01, 2021, 06:07:38 PM
MICRC has cranked out another horrible map.

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They’re atleast getting closer…

The “let’s making Lansing into a literal belt” idea isn’t great tho


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: politicallefty on October 02, 2021, 06:40:42 AM
It looks like most of these maps are collapsing MI-02 and MI-04 into one district and creating a new Republican seat in Macomb County (the latter being virtually unavoidable). Otherwise, it looks to me like they're just tinkering around with the current lines and attempting to compensate for the partisan imbalance by trying to make the Grand Rapids district a new Democratic-leaning seat. That said, it does appear quite difficult to create three Democratic-leaning seats outside of the Detroit area (assuming four there).

I made an attempt at a map myself, but I wasn't too pleased as to how it turned out overall (not for partisan reasons, just overall). I'd say it's more of a rough draft of intentions. While it does create a new Democratic-leaning Grand Rapids-Muskegon district and a Republican-leaning Macomb district, I didn't like that there are four districts each in both Wayne and Oakland Counties:

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https://davesredistricting.org/join/05370be7-89d0-4e07-8229-c1bf513747a4

According to the analysis, 9 counties are split a total of 13 times. Other key metrics:

Proportionality: 74/100 (partisan bias of 52/100)
Competitiveness: 41/100
Minority Representation: 67/100
Compactness: 66/100
Splitting: 50/100

It's a slightly Republican-leaning map. The median district is MI-02, which Trump won by 0.1% (or 636 votes). Making MI-03 a Democratic district (Biden+7.9/Clinton+0.5) pushed MI-05 out of Bay City and into Oakland County, making the new district Biden+0.7/Trump+2.9. The Lansing district (i.e. Elissa Slotkin's seat) is MI-02, which I mentioned above. It moves very slightly to the left. Hillary lost it by 4.3% versus 7% in the current district.

In terms of previous elections:

2020 President: Trump 7-6
2020 Senate: James 7-6
2018 Governor: Whitmer 9-4
2018 Senate: Stabenow 8-5
2018 AG: Nessel 7-6
2016 President: Trump 8-5


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on October 06, 2021, 03:08:23 PM


Anyway although a natural house map would have a GOP advantage one thing I did notice is actually baconstripping Detroit may have hurt Dems slightly. It probably didn't affect anything in Wayne/Oakland but a lot of those districts actually took up moderately Dem leaning areas that would have been with swingy areas further up in Macomb. Instead those swingy areas are now with red areas in central Macomb.

Also Eid is starting have a bit of Tafoya syndrome. However the main thing is that there isn't any real counterweight to Eid that Tafoya had in Schell/Kelly/Leone.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Virginiá on October 07, 2021, 12:34:02 PM
Also Eid is starting have a bit of Tafoya syndrome. However the main thing is that there isn't any real counterweight to Eid that Tafoya had in Schell/Kelly/Leone.

Seems kind of subjective, but also as far as I know, Colorado's commission doesn't place a strong priority on partisan fairness, so it kind of limits the damage an ineffectual proponent can do.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on October 08, 2021, 10:06:00 AM
https://davesredistricting.org/join/abf6a9ee-0c85-479d-bac7-46cbb3b23e78

My attemp on redistricting in Michigan: 1 majority AA seat, one majority-minority seat (both of them can be majority AA if switch few precincts between them), 2 safe Democratic seats, 2 likely D seats, 3 safe Republicans seats and 6 highly-competetive seats

8-5 Trump in 2016
10-3 Biden in 2020


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tintrlvr on October 08, 2021, 11:21:21 AM
https://davesredistricting.org/join/abf6a9ee-0c85-479d-bac7-46cbb3b23e78

My attemp on redistricting in Michigan: 1 majority AA seat, one majority-minority seat (both of them can be majority AA if switch few precincts between them), 2 safe Democratic seats, 2 likely D seats, 3 safe Republicans seats and 6 highly-competetive seats

8-5 Trump in 2016
10-3 Biden in 2020

Definitely competitive! I think you could neaten it up a bit if you put Holland and Grand Haven in district 2 while putting (part of) Eaton in district 4 and then pulling district 4 south out of some of its remote northern arm without affect partisanship in the districts much if at all.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on October 08, 2021, 03:18:21 PM
https://projects.fivethirtyeight.com/redistricting-2022-maps/michigan/proposal_18/

This 18th!!! proposal actually strikes as the best of them all


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: politicallefty on October 09, 2021, 08:48:14 AM
https://projects.fivethirtyeight.com/redistricting-2022-maps/michigan/proposal_18/

This 18th!!! proposal actually strikes as the best of them all

It's the first proposal to have 5 Democratic districts in the Detroit metro (i.e. the first to not cede a Republican-leaning Macomb district). Actually, it's also the first map to have 5 Democratic districts without going the Grand Rapids-Kalamazoo route

It's definitely an improvement. However, I'm not fond of moving the Flint-Saginaw district into the Thumb. That's blood red territory and a community of interest, not to mention pulling the district to the right. It also seems like they're having trouble figuring out what to do with Grand Rapids to make it a more competitive district. It might be trending D, but it's probably out of reach in this particular map. A Grand Rapids-Muskegon district, on the other hand, would have a slight Democratic lean (anywhere from Biden +7-9% and split almost evenly between Clinton and Trump). If they slightly reduced the Democratic lean of the Macomb district, created a Grand Rapids-Muskegon district, and pulled the Flint-Saginaw district out of the Thumb, we might have a map. The Lansing district will have a slight Republican lean no matter what you do, although less than its predecessor.

Once again, it does appear that one inevitability of the eventual map will be that the eliminated district is essentially collapsing the current MI-02 and MI-04 into one district.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on October 09, 2021, 11:55:16 AM
Michigan commission approves draft state senate map in surprise vote (5-4, 4 of the commissioners were not present):
https://www.mlive.com/public-interest/2021/10/michigan-redistricting-commission-approves-state-senate-draft-map-in-surprise-vote.html


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Born to Slay. Forced to Work. on October 09, 2021, 12:40:54 PM
Michigan commission approves draft state senate map in surprise vote (5-4, 4 of the commissioners were not present):
https://www.mlive.com/public-interest/2021/10/michigan-redistricting-commission-approves-state-senate-draft-map-in-surprise-vote.html

I mean I guess they had a quorum but that doesn’t seem in the spirit of an “independent commission”…


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Antonio the Sixth on October 09, 2021, 01:24:09 PM
Michigan commission approves draft state senate map in surprise vote (5-4, 4 of the commissioners were not present):
https://www.mlive.com/public-interest/2021/10/michigan-redistricting-commission-approves-state-senate-draft-map-in-surprise-vote.html

Who voted for this? The article is paywalled.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ilikeverin on October 09, 2021, 02:30:35 PM
Michigan commission approves draft state senate map in surprise vote (5-4, 4 of the commissioners were not present):
https://www.mlive.com/public-interest/2021/10/michigan-redistricting-commission-approves-state-senate-draft-map-in-surprise-vote.html

Who voted for this? The article is paywalled.

Quote
In all, Democrat Dustin Witjes, Independents Janice Vallette and Richard Weiss and Republicans Cynthia Orton and Doug Clark voted to move forward and approve the map, while Chair Rebecca Szetela, an Independent, Vice Chair MC Rothhorn, a Democrat, and Independents Steve Lett and Anthony Eid voted no.

Commissioners who voted no said they were primarily concerned with the change in procedure, especially with so many members absent.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Virginiá on October 09, 2021, 02:44:39 PM
From above article:

Quote
Based on the measures commissioners are using to determine partisan fairness, the draft state Senate map approved by commissioners Friday slightly favors Republicans but would lead to a competitive map that could give Democrats a shot at capturing the majority for the first time in decades.

Measures considered include the lopsided margin, which analyzes the concentration of Democratic and Republican voters in the districts as proposed, and the efficiency gap, which quantifies the number of “wasted votes” cast in elections — any votes cast for the losing candidate and any votes above 50% for the winning candidate. A low efficiency gap score indicates a more politically neutral map.

Both of those measurements show the map overall slightly favors Republicans, with a lopsided margin advantage of 4.5% favoring Republicans and an efficiency gap of 3.2%, also favoring Republican candidates.

But in one key measure, the seat-to-vote share, a commission analysis of past election data in the decade since the last redistricting process showed a slight advantage for Democrats, indicating the possibility of a 20-18 seat split with Democrats in the majority. The chamber is currently split 20-16 in favor of Republicans with two open Republican-leaning seats.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on October 11, 2021, 10:29:00 AM
Some adjustments have been made to the State Senate map that finally unpacks Ann Arbor.



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ChineseConservative on October 11, 2021, 01:37:43 PM
Michigan commission approves draft state senate map in surprise vote (5-4, 4 of the commissioners were not present):
https://www.mlive.com/public-interest/2021/10/michigan-redistricting-commission-approves-state-senate-draft-map-in-surprise-vote.html

Who voted for this? The article is paywalled.

Try typing and putting "outline.com/" before the website's url to get past the paywall.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on October 12, 2021, 12:20:39 AM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Devils30 on October 12, 2021, 12:51:14 AM


If the new MI-3 becomes Dem leaning and the MAGA mob remains relentless, Meijer might be smart to seriously consider switching parties. His record is thin enough he could make it work.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: politicallefty on October 12, 2021, 03:20:08 AM
If the new MI-3 becomes Dem leaning and the MAGA mob remains relentless, Meijer might be smart to seriously consider switching parties. His record is thin enough he could make it work.

Where are the maps? I'm interested to see how two of them are 7/13 Biden. Every map I've seen that created a Democratic district for Grand Rapids ceded a Macomb district to the Republicans. Otherwise, they must've somehow tweaked the lines enough for the Lansing district to have voted for Biden. The map I drew on the previous page had a Lansing district that voted by a hair for Trump.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Antonio the Sixth on October 12, 2021, 04:43:04 AM


Looks like those maps only differ in the Detroit area and are identical in the rest of Michigan. This means no Dem-leaning Grand Rapids seat, and the two swingy districts both have a R tilt. Kind of annoying honestly. You'd think at least they'd try to make the Flint-Saginaw district a bit more Democratic. There were some plans that seemed to do that.

Anyway it seems decently fair otherwise. Can't exactly complain, especially in light of what other independent commissions are doing in places like CO.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: politicallefty on October 12, 2021, 05:01:56 AM


Looks like those maps only differ in the Detroit area and are identical in the rest of Michigan. This means no Dem-leaning Grand Rapids seat, and the two swingy districts both have a R tilt. Kind of annoying honestly. You'd think at least they'd try to make the Flint-Saginaw district a bit more Democratic. There were some plans that seemed to do that.

Anyway it seems decently fair otherwise. Can't exactly complain, especially in light of what other independent commissions are doing in places like CO.

The Flint-Saginaw district is fairly constrained as to where it can go, especially if they want to maintain five Democratic districts in the Detroit-Ann Arbor area. The most important thing for that district is to keep it out of the Thumb. That is the most Republican area of the state and it has been blood red since the founding of the Republican Party in 1856. The Lansing district also really doesn't have any place to go. I think it's a pretty even split between Biden and Trump that just tinkers around the margins, but it is a slightly improved district for Elissa Slotkin.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Devils30 on October 12, 2021, 11:19:43 AM
Stevens seems like the likely biggest winner, I expect the new MI-11 to look considerably more blue with the new maps. Dems should push for a Grand Rapids to Kalamazoo MI-3.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Non Swing Voter on October 12, 2021, 06:05:40 PM
Hilarious that Dems could get a better map out of Michigan than Virginia...


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: JerryArkansas on October 12, 2021, 09:12:01 PM


Looks like those maps only differ in the Detroit area and are identical in the rest of Michigan. This means no Dem-leaning Grand Rapids seat, and the two swingy districts both have a R tilt. Kind of annoying honestly. You'd think at least they'd try to make the Flint-Saginaw district a bit more Democratic. There were some plans that seemed to do that.

Anyway it seems decently fair otherwise. Can't exactly complain, especially in light of what other independent commissions are doing in places like CO.
Three of the four don't do a Grand Rapids democratic seat.  One of the four does unite it and Kalamazoo


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: amateur_psepho on October 12, 2021, 09:39:57 PM
Three of the four don't do a Grand Rapids democratic seat.  One of the four does unite it and Kalamazoo

im pretty sure none of the four have the grand rapids to kalamazoo seat. one has a g.r.-muskegon seat though, but it comes at the expense of the winnable macomb district.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on October 13, 2021, 11:42:05 PM
A Republican commissioner just released this:



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Devils30 on October 14, 2021, 12:32:16 AM
A Republican commissioner just released this:



Dems should consider taking this one, it has trendymander potential with what's happened in Kent, Oakland.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on October 14, 2021, 07:13:56 AM
A Republican commissioner just released this:


Dems should consider taking this one, it has trendymander potential with what's happened in Kent, Oakland.

I don't expect this map to go anywhere cause of the Lansing split - keeping the three counties together was I believe one of the red lines agreed to at the start.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on October 14, 2021, 01:52:26 PM


This ballot measure will gerrymander the state more than a  theoretical dem trifecta could. Pretty impressive.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Non Swing Voter on October 14, 2021, 07:35:17 PM


If the new MI-3 becomes Dem leaning and the MAGA mob remains relentless, Meijer might be smart to seriously consider switching parties. His record is thin enough he could make it work.

Agreed.  He and that area both seem to fit more with the Dems long term trajectory than the GOP as long as they are on the Trump train.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Roll Roons on October 14, 2021, 07:44:18 PM


If the new MI-3 becomes Dem leaning and the MAGA mob remains relentless, Meijer might be smart to seriously consider switching parties. His record is thin enough he could make it work.

Agreed.  He and that area both seem to fit more with the Dems long term trajectory than the GOP as long as they are on the Trump train.

I think he is fairly conservative. Just not a Trump/MAGA cultist.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Non Swing Voter on October 15, 2021, 09:34:53 AM


If the new MI-3 becomes Dem leaning and the MAGA mob remains relentless, Meijer might be smart to seriously consider switching parties. His record is thin enough he could make it work.

Agreed.  He and that area both seem to fit more with the Dems long term trajectory than the GOP as long as they are on the Trump train.

I think he is fairly conservative. Just not a Trump/MAGA cultist.

He seems conservative on fiscal issues but moderate on social issues.  people vote more on social issues nowadays.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on October 20, 2021, 10:17:27 PM
https://www.michigan-mapping.org/submission/w6866

https://www.facebook.com/washtenawdems/posts/4660156020671501

Not shockingly.

I mean a lot of other partisan influence is usually based on asking to keep communities together but the Ann Arbor one is hilarious because they beg to be split apart.   They even admit that splitting Ann Arbor and Ypsilanti doesn't make sense but they want to force it. Even Boulder County in CO was thankful for being kept together .


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: It’s so Joever on October 20, 2021, 11:55:26 PM
https://www.michigan-mapping.org/submission/w6866

https://www.facebook.com/washtenawdems/posts/4660156020671501

Not shockingly.

I mean a lot of other partisan influence is usually based on asking to keep communities together but the Ann Arbor one is hilarious because they beg to be split apart.   They even admit that splitting Ann Arbor and Ypsilanti doesn't make sense but they want to force it. Even Boulder County in CO was thankful for being kept together .
Boulder County residents would want to be split anyways.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on October 27, 2021, 03:08:55 PM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: It’s so Joever on October 27, 2021, 05:53:20 PM
https://www.michigan-mapping.org/submission/w6866

https://www.facebook.com/washtenawdems/posts/4660156020671501

Not shockingly.

I mean a lot of other partisan influence is usually based on asking to keep communities together but the Ann Arbor one is hilarious because they beg to be split apart.   They even admit that splitting Ann Arbor and Ypsilanti doesn't make sense but they want to force it. Even Boulder County in CO was thankful for being kept together .
Breaking News: LfromNJ doesn’t listen to local officials, believes he knows a county better than the residents living in it. /s


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on October 27, 2021, 05:59:04 PM
https://www.michigan-mapping.org/submission/w6866

https://www.facebook.com/washtenawdems/posts/4660156020671501

Not shockingly.

I mean a lot of other partisan influence is usually based on asking to keep communities together but the Ann Arbor one is hilarious because they beg to be split apart.   They even admit that splitting Ann Arbor and Ypsilanti doesn't make sense but they want to force it. Even Boulder County in CO was thankful for being kept together .
Boulder County residents would want to be split anyways.

IIRC a few people in the preliminary map from Nederland went bezerk over being placed with Boebert even though it helped make the district closer to a swing district.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: It’s so Joever on October 27, 2021, 06:20:45 PM
https://www.michigan-mapping.org/submission/w6866

https://www.facebook.com/washtenawdems/posts/4660156020671501

Not shockingly.

I mean a lot of other partisan influence is usually based on asking to keep communities together but the Ann Arbor one is hilarious because they beg to be split apart.   They even admit that splitting Ann Arbor and Ypsilanti doesn't make sense but they want to force it. Even Boulder County in CO was thankful for being kept together .
Boulder County residents would want to be split anyways.

IIRC a few people in the preliminary map from Nederland went bezerk over being placed with Boebert even though it helped make the district closer to a swing district.
Not surprising to be honest. The average voter doesn’t actually think about these partisan implications from the perspective we do. Usually they only care about who they are represented by.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on October 29, 2021, 01:28:54 AM
R Commissioners are finally starting to argue on certain arguments on partisan fairness.






Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on October 29, 2021, 01:07:04 PM


The latest NC state senate map is literally better than this insanity.(obviously the NC congressional map is a pretty brutal gerrymander)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: It’s so Joever on October 29, 2021, 02:30:06 PM
Thank gosh Eid is pushing for fair maps.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on October 29, 2021, 03:12:01 PM

The latest NC state senate map is literally better than this insanity.(obviously the NC congressional map is a pretty brutal gerrymander)

Bad comparison, half the NC senate map is decided by multi-county groupings and everything is nested. Of course it looks nice at a glace.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on October 29, 2021, 03:15:10 PM
The latest NC state senate map is literally better than this insanity.(obviously the NC congressional map is a pretty brutal gerrymander)

Bad comparison, half the NC senate map is decided by multi-county groupings and everything is nested. Of course it looks nice at a glace.
Imagine if MI had county clusters like NC did. What would the map look like?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on October 29, 2021, 03:17:19 PM

The latest NC state senate map is literally better than this insanity.(obviously the NC congressional map is a pretty brutal gerrymander)

Bad comparison, half the NC senate map is decided by multi-county groupings and everything is nested. Of course it looks nice at a glace.


Ik about the rules. The point is those rules are more effective in stopping gerrymandering than an independent commission at least at a legislative level. Don't get me wrong county clusters aren't great for congressional, as you can still do too much with such large districts but I think they reasonable limit anything at state legislative levels.

They also aren't perfect either at the legislative level as we do have some weird districts in NC such as Moore -Fayetteville


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on November 01, 2021, 11:42:50 AM
State Senate Cherry is the map moving forward.



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on November 01, 2021, 05:17:09 PM




Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on November 01, 2021, 05:20:47 PM




Incredible how the Michigan current map is considered an extrene gerrymander but because it turns out to be relatively equal by the end the commision barely changed anything besides reuniting the Lansing methods or gerrymandering grand rapids in the opposite direction.  Nothing crazy other than Grand rapids but found it funny.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on November 01, 2021, 05:42:24 PM
Kalamazoo-GR is so dumb.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on November 01, 2021, 05:46:53 PM

Well even starting with a midland to flint district which is a relatively reasonable district Democrats need , so the thumb can pack every single R in metro Detroit you still need to gerrymander the state elsewhere to make an  "equitable " map.Either dump  Macomb with areas like Ferndale to keep Levin with a safe seat or the idiotic Grand Rapid moves with areas like KZ or Muskegon. The former is a meh move while the latter 2 are fairly outrageous


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on November 01, 2021, 05:50:41 PM
Isn't a lot of the stuff with the Grand Rapids area the result of really aggressive lobbying by folks from Ottawa County?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on November 01, 2021, 05:52:04 PM
Isn't a lot of the stuff with the Grand Rapids area the result of really aggressive lobbying by folks from Ottawa County?

Partially yes but also partially due to partisan fairness. Also people trying to say Muskegon GR is a vra seat


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: RussFeingoldWasRobbed on November 02, 2021, 12:27:49 PM
Can somebody do a DRA for the Birch Plan. I think that's the one that ultimately will be selected


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on November 02, 2021, 12:35:39 PM
Can somebody do a DRA for the Birch Plan. I think that's the one that ultimately will be selected
Three maps in DRA



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Stuart98 on November 02, 2021, 04:07:27 PM
Chestnut is so based.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: EastAnglianLefty on November 03, 2021, 04:24:25 AM
Interesting that Chestnut is the only plan to use Southfield for one of the VRA districts. Also worth noting you could theoretically get a Biden district out of both Oakland and Macomb by swapping Rochester for Royal Oak etc, so it'll be interesting to see if there's a push for that in the consultation.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on November 07, 2021, 09:40:04 PM


I'm surprised the Grand Rapids-Kalamazoo district made it.  The other two maps are pretty normal really.  

They made Kildee's seat Biden+2 and the Lansing district close to 50/50 in all three maps.

The Birch map is probably the best for Democrats long-term as Grand Rapids and Upton's district are both trending D overall, so potentially up to 9 districts total.  For 2022 the best map for D's is the Grand Rapids-Kalamazoo "Apple" map.

I would have to imagine the MIGOP is rooting for the Chestnut map.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Roll Roons on November 07, 2021, 10:17:18 PM


I'm surprised the Grand Rapids-Kalamazoo district made it.  The other two maps are pretty normal really.  

They made Kildee's seat Biden+2 and the Lansing district close to 50/50 in all three maps.

The Birch map is probably the best for Democrats long-term as Grand Rapids and Upton's district are both trending D overall, so potentially up to 9 districts total.  For 2022 the best map for D's is the Grand Rapids-Kalamazoo "Apple" map.

I would have to imagine the MIGOP is rooting for the Chestnut map.

TBH, I feel like Meijer is someone who could become entrenched and be a consistent overperformer a la Fitzpatrick or Katko.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on November 07, 2021, 10:18:55 PM


I'm surprised the Grand Rapids-Kalamazoo district made it.  The other two maps are pretty normal really.  

They made Kildee's seat Biden+2 and the Lansing district close to 50/50 in all three maps.

The Birch map is probably the best for Democrats long-term as Grand Rapids and Upton's district are both trending D overall, so potentially up to 9 districts total.  For 2022 the best map for D's is the Grand Rapids-Kalamazoo "Apple" map.

I would have to imagine the MIGOP is rooting for the Chestnut map.

TBH, I feel like Meijer is someone who could become entrenched and be a consistent overperformer a la Fitzpatrick or Katko.

Pretty sure he underran James.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on November 08, 2021, 08:50:09 AM
Yeah compared to legislative maps where some pretty absurd districts had to be done to make it "fair", nothing as absurd needed to happen congressionally but they still tried for the 0 efficiency gap. Muskegon with GR or Kal with GR is fairly absurd while Lower Macomb with Ferndale is bad but not nearly as bad as the other 2 so Birch is probably the best from a COI perspective.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on November 08, 2021, 06:28:06 PM
I watched the MI redistricting commission in action on youtube today (a meeting last Thursday). First, the initiative that it operates under is poorly drafted, and the commission had 3 lawyers arguing, none of whom got it right. I think later on after I fled, somebody decided to hire a high powered law firm to tell them what I could have told them for free but whatever (because the meeting the next day mentioned that a nationally famous law firm had been hired). No, the commission does not have the power to interpret the law, and yes, the constitution may force changes in their deadlines and schedules, and maybe the date of the primary election, and yes anyone can sue with standing to sue, like an aggrieved commissioner, and yes there may be a necessity to file a declaratory relief action, and yes, as a practical matter, who is going to vote for an un-vetted map, and yes it is a mess.

Second, they have partisan fairness software that can look at election by election. What that means is that the geographic Dem disadvantage in Michigan, and the VRA, means that the map needs to be gerrymandered so that the Dems can catch up. Thus uber Dem Ann Arbor is quad chopped on the state house map, to spread the Dem wealth. The hapless Pubs have no idea what hit them. And finally, lawyers always take over. The chairperson happens to be a lawyer, claims she is unaffiliated but she is really a Dem (Michigan has no partisan registration), and she dominates everything.

I wonder if I will live long enough to see a commission go into the fairness metrics in states where geography favors the Dems, and the gerrymandering needs to be ruthless to get the Pubs to catch up. Such a state house map in Mass would be an erose mess.

The MI constitution does have a clause about using standard measures of fairness. Just what are standard measures is in the eye of the beholder I guess (and the mathematics is way above what 99.9% of the population can understand, so that just leaves Muon2 on this site), and such standards can rapidly lead to the theater of the absurd depending on what is going on on the ground. I won't be watching this circus again. It's just too painful.

Oh, on the CD level, the fairness measures are not too bad in MI vis a vis ugly gerrymandered maps, given that so much of MI has become much more marginal than heretofore, as Dutch Michigan and high income educated burbs race to the Dems, and rust belt whites race to the Pubs, rendering vast swaths of MI marginal. Most states are not like Michigan.

Oh, one other thing. If they go to ranked choice voting if they don't get a bipartisan agreement, the law is unclear if that vote is by secret ballot or how that will work, and if by a public roll call, giving those who vote last and have a high powered computer that they know how to use, a huge advantage, and whether one can change one's vote after knowing what the totals are, and if one can legally bargain behind closed doors. The commission has not though about that at all, although the smart lawyer chairman probably has. But she shows her hand only when it maximizes her power.

tldr: It's cf city out there in the land between the lakes.

Addendum 1: I see the post above that I just read is on the same wave length as I on much of this. So we are both sage and perspicacious, or clueless and obtuse.

Addendum 2: We should adopt the German system which mixes districts and proportionality, so it does not matter much how the lines are drawn. If the lines zero out a party that got 40% of the vote, they then get enough seats through proportionality to get to 40% of the seats. Yes, to make it work reasonably, we need to get rid of the Senate and the States. Both have to go. It's time for a Constitutional Convention to make it happen. I nominate myself as chairman of that event. It will need a lot of competent security guards I understand. Thus the Capitol police will not be used.

Addendum 3: Since the fairness doctrine in NYS requires that the Pubs get 40% of the CD's, and everything else. I wonder what that map would look like? Probably need to take the Pub map that was submitted, and do some more gerrymandering on Long Island, and do a snake from Rochester to Ithaca.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: wbrocks67 on November 08, 2021, 07:43:50 PM
7-6 Biden seems doable, and better than the current lines. Seems crisis averted here? I'm a bit surprised we didn't get an 8-5 Trump map or something.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Pericles on November 09, 2021, 01:33:33 AM
This looks beautiful, elections should reflect the will of the people so it's nice to see partisan fairness getting high priority.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Antonio the Sixth on November 09, 2021, 06:00:46 AM
7-6 Biden seems doable, and better than the current lines. Seems crisis averted here? I'm a bit surprised we didn't get an 8-5 Trump map or something.

Partisan fairness was explicitly the #1 metric the state constitution imposed on the commission, so this is not surprising at all.

Anyway, it also seems they did a decent job representing COIs on top of it, so that's a relief. Like the PA map last cycle, those are all largely fair maps which make small choices in favor of Dems when possible in order to correct for the Republican geographic bias. I think that's the right approach. Of the three, I guess I agree with ilfromnj that the "Birch" plan seems slightly better, though all 3 maps would be acceptable.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on November 09, 2021, 08:20:54 AM
FWIW, I like Birch the best as well. As I say, given the fairly flat partisan variations outside Detroit and Ann Arbor, for a map with districts as large as CD's, it does not upset the apple cart that much. It does at the state house seat level however with much smaller districts that are easier to gerrymander.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on November 09, 2021, 11:58:28 AM
Here is the C map I would have pushed I think if I was on the commission. Not much different from Chestnut, except the Grand Rapids CD is swing, rather than a ugly Dem snatch gerrymander, but Grand Rapids is going Dem anyway, so this iteration would have given the Pubs a short term lease, unless the Pub incumbent there was MAGA'ed out. The other changes from a partisan perspective are minor. I just don't do chops to help the Dems at the margin a point or less.

()


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on November 09, 2021, 07:07:47 PM
Honestly I think Birch is the best. It achieves partisan fairness without doing anything weird in Western MI with Grand Rapids to make a Dem leaning district.

Overall I'm happy with the MIRC. At first as was hesitant because it seemed like they had no clue what they were doing but in the end they came up with 3 really viable maps without too much tension between the Ds and Rs in the process.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 16, 2021, 10:14:57 PM
https://davesredistricting.org/join/14274625-6937-4b41-a5b6-0a290d161505
MI state senate map with a 0.00% efficiency gap, but good county integrity. If need be, Washtenaw can be unified, with the Adrian SD taking in Jackson instead of southern Ann Arbor.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Antonio the Sixth on December 17, 2021, 07:26:11 AM
When is the Commission going to decide on a final map?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on December 17, 2021, 07:38:17 AM
When is the Commission going to decide on a final map?

IIRC dec 21 but don’t quote me


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 20, 2021, 05:01:59 PM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 21, 2021, 01:58:39 PM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Biden his time on December 25, 2021, 11:40:24 PM
I tried my hand at a fair congressional map of Michigan using the 2020 census results.

()

Image Link (https://talkelections.org/FORUM/GALLERY/31773_25_12_21_11_13_13.png)

The Population Deviation is less than 0.01%.

52/100 on Dave's Proportionality Index
75/100 on the Compactness Index
26/100 on County Splitting
67/100 on the Minority Representation index
26/100 on Dave's competitiveness index

The map above shows results from the 2020 U.S. Presidential election in Michigan.

Check it out here and see county and municipality boundaries. (https://davesredistricting.org/join/19ac6ebe-49bd-4b0d-a5b9-9d37636c409c)



Partisan Breakdown by Election

2016 U.S. Presidential Election in Michigan: 8R to 5D

2018 Michigan Attorney General Election: 8R to 5D

2018 U.S. Senate Election in Michigan: 8R to 5D

2018 Michigan Gubernatorial Election: 8R to 5D

2020 U.S. Senate Election in Michigan: 8R to 5D

2020 U.S. Presidential Election in Michigan: 8R to 5D



One majority-Black district (50.8% VAP) and one that's 42.7% Black by VAP.

Every single election returns 8R - 5D but with drastically different margins. In the 2020 election, the closest district was the Grand Rapids one at Trump+0.4% (down from Trump+9.8% four years prior). The Central Oakland District is also interesting as it swung from Clinton+6.8% to Biden+13.6%. Notably, Asians (14.1% Population and 12.9% VAP) are the largest minority in that district and not Blacks.



Opinions?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Antonio the Sixth on December 26, 2021, 06:46:12 AM
When is the Commission going to decide on a final map?

IIRC dec 21 but don’t quote me

Well, it's Dec 26th and I am quoting you :P


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 27, 2021, 01:56:26 PM
The commission will be meeting a few times between December 28 and December 30.

We'll see a final map out of it. My favorite is the Chestnut plan.




Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: The Undefeatable Debbie Stabenow on December 27, 2021, 04:08:23 PM
Of course, I still like my map (https://districtr.org/plan/96349) more than any of these. That said, these final options are far superior to some of the absolutely hideous options that the commission was pondering earlier on. (It was also quite predictable that they would rather go for 2 majority-minority districts than take my approach, even though mine should still be totally VRA-compliant, so I'm not surprised about that.) I wouldn't be too upset with any of them, even though the Kalamazoo-GR district in the Apple plan really is quite dubious and Wahlberg's district reaching both Lake Michigan and Lake Erie is not really ideal as far as compactness goes.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 27, 2021, 05:12:05 PM
Of course, I still like my map (https://districtr.org/plan/96349) more than any of these. That said, these final options are far superior to some of the absolutely hideous options that the commission was pondering earlier on. (It was also quite predictable that they would rather go for 2 majority-minority districts than take my approach, even though mine should still be totally VRA-compliant, so I'm not surprised about that.) I wouldn't be too upset with any of them, even though the Kalamazoo-GR district in the Apple plan really is quite dubious and Wahlberg's district reaching both Lake Michigan and Lake Erie is not really ideal as far as compactness goes.
https://davesredistricting.org/join/75dcd34d-39e2-4ff4-b049-bcc9d3284f42
thoughts on this map?
It's inspired by your map (which solves some problems I have had difficulty with), while also avoiding a whole-Detroit CD. It takes a less dogmatic approach to county splits than I usually do.
It also keeps Battle Creek and Kalamazoo together (not sure how much of a positive that is).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: bagelman on December 27, 2021, 06:04:56 PM
Of course, I still like my map (https://districtr.org/plan/96349) more than any of these. That said, these final options are far superior to some of the absolutely hideous options that the commission was pondering earlier on. (It was also quite predictable that they would rather go for 2 majority-minority districts than take my approach, even though mine should still be totally VRA-compliant, so I'm not surprised about that.) I wouldn't be too upset with any of them, even though the Kalamazoo-GR district in the Apple plan really is quite dubious and Wahlberg's district reaching both Lake Michigan and Lake Erie is not really ideal as far as compactness goes.

You appear to have an 80% black district which is packing.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: The Undefeatable Debbie Stabenow on December 27, 2021, 09:07:54 PM
Of course, I still like my map (https://districtr.org/plan/96349) more than any of these. That said, these final options are far superior to some of the absolutely hideous options that the commission was pondering earlier on. (It was also quite predictable that they would rather go for 2 majority-minority districts than take my approach, even though mine should still be totally VRA-compliant, so I'm not surprised about that.) I wouldn't be too upset with any of them, even though the Kalamazoo-GR district in the Apple plan really is quite dubious and Wahlberg's district reaching both Lake Michigan and Lake Erie is not really ideal as far as compactness goes.

You appear to have an 80% black district which is packing.

Are you suggesting that it's VRA-noncompliant? Someone can correct me if I'm wrong, as I'm far from an expert and the VRA is certainly very complicated, but I do not think that my map would violate the VRA's redistricting requirements. Yes, it's possible to create 2 majority-minority districts, and I only created one. However, the surrounding districts with significant minority populations (grey and maroon) will consistently vote to elect candidates that are preferred by minority voters, and consequently I don't believe there are any issues with the VRA. Racially polarizing voting is the critera here; the VRA's requirements are not nearly as simple as "if you can possibly draw X majority-minority districts, you have to draw X majority-minority districts." While this is certainly a great concentration of minority voters in one district, I don't think you could argue that this map dilutes the political preference of minority voters.

Now, as I stated in my original post, I fully expected the commission to default to drawing 2 majority-minority districts. It's a more straightforward way of ensuring VRA compliance, and a more straightfoward way of indicating to the general public that minority voters are securing adequate representation.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: The Undefeatable Debbie Stabenow on December 27, 2021, 09:11:56 PM
Of course, I still like my map (https://districtr.org/plan/96349) more than any of these. That said, these final options are far superior to some of the absolutely hideous options that the commission was pondering earlier on. (It was also quite predictable that they would rather go for 2 majority-minority districts than take my approach, even though mine should still be totally VRA-compliant, so I'm not surprised about that.) I wouldn't be too upset with any of them, even though the Kalamazoo-GR district in the Apple plan really is quite dubious and Wahlberg's district reaching both Lake Michigan and Lake Erie is not really ideal as far as compactness goes.
https://davesredistricting.org/join/75dcd34d-39e2-4ff4-b049-bcc9d3284f42
thoughts on this map?
It's inspired by your map (which solves some problems I have had difficulty with), while also avoiding a whole-Detroit CD. It takes a less dogmatic approach to county splits than I usually do.
It also keeps Battle Creek and Kalamazoo together (not sure how much of a positive that is).

Looks really good! I had personally gone into the drawing process with the idea of keeping every single municipality, including the city of Detroit, undivided, which was not at all a criterium that I actually would expect the commission to abide by but I was curious to see if I could make it work given that it was mathematically possible (and I ended up being pretty happy with the final result).

Keeping Battle Creek and Kalamazoo together is definitely a positive, as is keeping Bay City, Saginaw, and Midland together.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 27, 2021, 09:33:38 PM
Of course, I still like my map (https://districtr.org/plan/96349) more than any of these. That said, these final options are far superior to some of the absolutely hideous options that the commission was pondering earlier on. (It was also quite predictable that they would rather go for 2 majority-minority districts than take my approach, even though mine should still be totally VRA-compliant, so I'm not surprised about that.) I wouldn't be too upset with any of them, even though the Kalamazoo-GR district in the Apple plan really is quite dubious and Wahlberg's district reaching both Lake Michigan and Lake Erie is not really ideal as far as compactness goes.
https://davesredistricting.org/join/75dcd34d-39e2-4ff4-b049-bcc9d3284f42
thoughts on this map?
It's inspired by your map (which solves some problems I have had difficulty with), while also avoiding a whole-Detroit CD. It takes a less dogmatic approach to county splits than I usually do.
It also keeps Battle Creek and Kalamazoo together (not sure how much of a positive that is).

Looks really good! I had personally gone into the drawing process with the idea of keeping every single municipality, including the city of Detroit, undivided, which was not at all a criterium that I actually would expect the commission to abide by but I was curious to see if I could make it work given that it was mathematically possible (and I ended up being pretty happy with the final result).

Keeping Battle Creek and Kalamazoo together is definitely a positive, as is keeping Bay City, Saginaw, and Midland together.
It's really quite remarkable how Genesee, Bay, Saginaw, and Midland, combined, creates a district less than 10,000 away from quota.
Also, that 8th I drew is very much a district that PVI makes look vulnerable, but is solider than expected when you look at Biden numbers.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Horus on December 27, 2021, 10:09:29 PM
Hopefully we don't lose Andy Levin.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: GALeftist on December 27, 2021, 10:13:22 PM
I'm torn; on the one hand, I think it makes the most sense for Grand Rapids to have a Biden district and Macomb to have a Trump district, but on the other hand I think pairing Grand Rapids with Muskegon and especially Kalamazoo is pretty dumb. Overall I would be happy with either Birch or Chestnut.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 28, 2021, 03:04:36 PM
The two favorites seem to be Birch and Chestnut at the moment. I think Chestnut has the best chance of being enacted. The commission just voted 9-4 to not amend the maps any further.




Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 28, 2021, 03:15:55 PM
Weiss - Chestnut
Witjes - Chestnut
Clark - Chestnut
Curry - Birch
Eid - Chestnut
Kellom - Chestnut
Delay- Lange
Lett - Chestnut
Orton - Chestnut
Rothhorn - Birch
Szetela - Birch
Valette - Birch
Wagner - Lange
Lange - Lange

Chestnut has been officially adopted as Michigan's new congressional map.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on December 28, 2021, 03:16:44 PM
That’s fine, Apple was going to be the poster child for Republican disenchantment with commissions for the decade if it passed.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on December 28, 2021, 03:17:28 PM




Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Horus on December 28, 2021, 03:18:44 PM
Hopefully Levin can primary Haley Stevens but I'm not optimistic.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: RussFeingoldWasRobbed on December 28, 2021, 03:20:45 PM
That's a shocker, I expected Birch


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on December 28, 2021, 03:21:40 PM
Chestnut kinda sucks for Andy Levin in MI-10, but other than that all the rest of the competitive districts are a bit better for Democrats than Birch, except MI-3 (Kent County) which is WAY better for Democrats.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Stuart98 on December 28, 2021, 03:24:30 PM
Unfathomably based. Michigan has had the best redistricting process in the country and I don't think it's particularly close.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 28, 2021, 03:24:50 PM
Chestnut kinda sucks for Andy Levin in MI-10, but other than that all the rest of the competitive districts are a bit better for Democrats than Birch, except MI-3 (Kent County) which is WAY better for Democrats.
I think this was a good map to go with. I would have preferred to see Muskegon in MI-3 and have more of Ottowa in MI-4 but other than that, no complaints.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 28, 2021, 03:27:03 PM
()

For reference here is the final map, with a DRA link:
https://davesredistricting.org/maps#viewmap::538b84c5-9d2a-402f-b5fd-b1b8320a6f01

(For the record, it is a little sad to see Meijer get put in a DEM-leaning seat. I liked him a lot. I hope he is able to hold on this year)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 03:28:54 PM
Unfathomably based. Michigan has had the best redistricting process in the country and I don't think it's particularly close.

How is GR Muskegon good.
That district is pretty trashy. The rest is decent but that is a clear Democratic gerrymander .

The Legislative districts are just lol and some of the worst in the entire midwest .


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: RussFeingoldWasRobbed on December 28, 2021, 03:30:32 PM
Unfathomably based. Michigan has had the best redistricting process in the country and I don't think it's particularly close.

How is GR Muskegon good.

"Partisan Fairness"tm
It's stupid, but it's in the Michigan constitution so...


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sestak on December 28, 2021, 03:31:16 PM
Big oof for Levin, RIP FF.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 03:32:12 PM
Unfathomably based. Michigan has had the best redistricting process in the country and I don't think it's particularly close.

How is GR Muskegon good.

"Partisan Fairness"tm
It's stupid, but it's in the Michigan constitution so...

It could still just be a Biden district based with all of  Ottowa or 2 random rurals. Its only a Trump district if you add Eastern Ottawa(which is the best move as it is the most metro centric)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Mr.Phips on December 28, 2021, 03:32:20 PM
Unfathomably based. Michigan has had the best redistricting process in the country and I don't think it's particularly close.

How is GR Muskegon good.
That district is pretty trashy. The rest is decent but that is a clear Democratic gerrymander .

The Legislative districts are just lol and some of the worst in the entire midwest .

Meijer could very well hold that seat in 2022.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on December 28, 2021, 03:33:04 PM
Unfathomably based. Michigan has had the best redistricting process in the country and I don't think it's particularly close.

It's without a doubt one of the best commissions this decade.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 03:35:11 PM
Unfathomably based. Michigan has had the best redistricting process in the country and I don't think it's particularly close.

How is GR Muskegon good.
That district is pretty trashy. The rest is decent but that is a clear Democratic gerrymander .

The Legislative districts are just lol and some of the worst in the entire midwest .

Meijer could very well hold that seat in 2022.

Still a pretty trash district when a perfect GR district is easy to make without disturbing anything else.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: GALeftist on December 28, 2021, 03:35:25 PM
RIP to Andy Levin. Maybe Meijer can hang on in 2022 but I think he probably loses in 2024, that district is headed left fast. I think Kildee might be able to hold on but idk about Slotkin, although she obviously got a major boost and could probably come back in 2024. It's not perfect but overall a reasonably coherent and fair map.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Chancellor Tanterterg on December 28, 2021, 03:35:38 PM
Unfathomably based. Michigan has had the best redistricting process in the country and I don't think it's particularly close.

How is GR Muskegon good.


Republicans oppose any sort of national gerrymandering ban.  Given that, why should anyone care if conservatives feel - rightly or wrongly - that they’ve been the victims of gerrymandering?  


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 03:37:32 PM
Unfathomably based. Michigan has had the best redistricting process in the country and I don't think it's particularly close.

How is GR Muskegon good.


Republicans oppose any sort of national gerrymandering ban.  Given that, why should anyone care if conservatives feel - rightly or wrongly - that they’ve been the victims of gerrymandering?  


How exactly would a national gerrymandering ban help Meijer who just got gerrymandered out of any seat past 2022?

This argument is so silly. It makes sense to attack Kinzinger on this but this is just stupid.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 28, 2021, 03:38:42 PM
Unfathomably based. Michigan has had the best redistricting process in the country and I don't think it's particularly close.

How is GR Muskegon good.


Republicans oppose any sort of national gerrymandering ban.  Given that, why should anyone care if conservatives feel - rightly or wrongly - that they’ve been the victims of gerrymandering?  


How exactly would a national gerrymandering ban help Meijer who just got gerrymandered out of any seat past 2022?
To be fair, this is his current district, a gerrymandered seat:
()


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 28, 2021, 03:39:45 PM
Andy Levin's re-election hopes are very much still alive. And so are Meijer's.
I could see them both hold on in 2022.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Pollster on December 28, 2021, 03:40:01 PM
Doesn't Levin live in Bloomfield in the Biden +20 1th? Stevens lives in Rochester Hills in the Trump +1 10th.

Slotkin also technically lives in the 9th here, but will obviously run in the Lansing seat.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 28, 2021, 03:43:16 PM
Andy Levin's re-election hopes are very much still alive. And so are Meijer's.
I could see them both hold on in 2022.
Levin's new seat is Trump +0.9, down from Trump +5.3 in 2016. Possibly winnable, but unlikely for 2022. He could try to win it back in 2024.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on December 28, 2021, 03:45:31 PM
Andy Levin's re-election hopes are very much still alive. And so are Meijer's.
I could see them both hold on in 2022.
Levin's new seat is Trump +0.9, down from Trump +5.3 in 2016. Possibly winnable, but unlikely for 2022. He could try to win it back in 2024.

MI-09 was 52-44 Clinton in 2016 and 56-43 Biden in 2020. Obviously most of the D votes strongholds were in Oakland and this was drawn to be a suburban D pack in 2010, so a compact seat was never to his benefit. If we are looking purely at residency then he would run in the D Oakland seat, but so will Stevens.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 28, 2021, 03:47:24 PM
Andy Levin's re-election hopes are very much still alive. And so are Meijer's.
I could see them both hold on in 2022.
Levin's new seat is Trump +0.9, down from Trump +5.3 in 2016. Possibly winnable, but unlikely for 2022. He could try to win it back in 2024.
"Unlikely for 2022" is reliant on a lot of factors, such as national environment (this is an elastic area), the R opponent he gets, and other things.
Incumbency is also on his side (though it counts for less than usual in election cycles immediately after redistricting).
Ultimately I'd wait a bit before writing his political obituary.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Minnesota Mike on December 28, 2021, 03:51:16 PM
Andy Levin's re-election hopes are very much still alive. And so are Meijer's.
I could see them both hold on in 2022.
Levin's new seat is Trump +0.9, down from Trump +5.3 in 2016. Possibly winnable, but unlikely for 2022. He could try to win it back in 2024.

I wouldn't bet against an incumbent named Levin in Michigan, especially since the seat is only Trump+1 and is trending left.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on December 28, 2021, 04:00:07 PM
Also what do we think about Tlaib's position in the new seat? On one hand, she gets all the Arab areas west of Detroit and the BVAP goes down in MI-12 compared to the old MI-13. On the other hand the African American areas are now more geographically unified, some of these areas are new, and one of them is the comparatively more politically engaged Southfield. Also Tlaib is technically outside the seat, but every incumbent really is and movement is expected.

Also Brenda Lawrence technically lives in Southfield and could run in MI-12 if she has a vendetta against Tlaib for any reason, but she will most likely go for the open successor seat of MI-13.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 28, 2021, 04:04:55 PM
Also what do we think about Tlaib's position in the new seat? On one hand, she gets all the Arab areas west of Detroit and the BVAP goes down in MI-12 compared to the old MI-13. On the other hand the African American areas are now more geographically unified, some of these areas are new, and one of them is the comparatively more politically engaged Southfield.

Also Brenda Lawrence technically lives in Southfield and could run in MI-12 if she has a vendetta against Tlaib for any reason, but she will most likely go for the open successor seat of MI-13.
Tlaib losing a primary would just make this map all the better IMO.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 04:09:01 PM
There's also a chance  Levin goes for the Oakland seat. Incumbents always run to the safe seat. I think Joe Walsh is one of the few in 2010 who didn't.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on December 28, 2021, 04:09:26 PM
Birch would have been better


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on December 28, 2021, 04:12:11 PM
There's also a chance  Levin goes for the Oakland seat. Incumbents always run to the safe seat. I think Joe Walsh is one of the few in 2010 who didn't.

Stevens already in the past minutes announced their intention to run for the Oakland seat and Slotkin for the Lansing one, so Levin would be announcing a primary campaign.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 28, 2021, 04:15:15 PM
There's also a chance  Levin goes for the Oakland seat. Incumbents always run to the safe seat. I think Joe Walsh is one of the few in 2010 who didn't.

Stevens already in the past minutes announced their intention to run for the Oakland seat and Slotkin for the Lansing one, so Levin would be announcing a primary campaign.
Does the new MI-11 have more of Stevens' territory or Levin's? Because it looks like she has more of her turf in the seat than he does...


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 04:17:16 PM
There's also a chance  Levin goes for the Oakland seat. Incumbents always run to the safe seat. I think Joe Walsh is one of the few in 2010 who didn't.

Stevens already in the past minutes announced their intention to run for the Oakland seat and Slotkin for the Lansing one, so Levin would be announcing a primary campaign.
Does the new MI-11 have more of Stevens' territory or Levin's? Because it looks like she has more of her turf in the seat than he does...

More of Stevens of course but the Levin name will even it out. After that Levin gets a safe district for the decade rather than having to run a campaign every 2 years.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 28, 2021, 04:26:20 PM
There's also a chance  Levin goes for the Oakland seat. Incumbents always run to the safe seat. I think Joe Walsh is one of the few in 2010 who didn't.

Stevens already in the past minutes announced their intention to run for the Oakland seat and Slotkin for the Lansing one, so Levin would be announcing a primary campaign.
Does the new MI-11 have more of Stevens' territory or Levin's? Because it looks like she has more of her turf in the seat than he does...

More of Stevens of course but the Levin name will even it out. After that Levin gets a safe district for the decade rather than having to run a campaign every 2 years.
If Levin stays put in the 10th I could see him become a sort of Brian Fitzpatrick, who stubbornly holds on to a strong district with a slight lean towards the other party.
But as you said, he has a good chance of winning a primary in MI-11 as well.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 04:26:50 PM


Boom


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on December 28, 2021, 04:27:47 PM
According to this report,  (https://www.detroitnews.com/story/news/politics/2021/12/28/john-james-strongly-considering-run-u-s-house-under-new-map/9037505002/)there are now quite a few GOP names looking at the Macomb seat, including John James. That said, the majority are from Oakland. Now they have greater incentives.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 28, 2021, 04:28:00 PM


Boom
Whelp.
I'm moving MI-10 to Likely R. It's now open.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 28, 2021, 04:33:11 PM
According to this report,  (https://www.detroitnews.com/story/news/politics/2021/12/28/john-james-strongly-considering-run-u-s-house-under-new-map/9037505002/)there are now quite a few GOP names looking at the Macomb seat, including John James. That said, the majority are from Oakland. Now they have greater incentives.
I expect a crowded field. There's nothing that gets more attention from ambitions pols than a new congressional open seat.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 28, 2021, 04:42:59 PM
The MICRC has passed the Linden map for state senate.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 04:45:19 PM
Partisan fairness is splitting Ann ARbor to give Democrats 21 /38 seats.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on December 28, 2021, 04:49:43 PM
Partisan fairness is splitting Ann ARbor to give Democrats 21 /38 seats.

Correct


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on December 28, 2021, 04:57:58 PM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: I spent the winter writing songs about getting better on December 28, 2021, 05:07:27 PM
That adopted map is awesome. Basically a soft D gerrymander from a commission.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 28, 2021, 05:12:46 PM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: RussFeingoldWasRobbed on December 28, 2021, 05:15:05 PM

Rooting for Levin here


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 28, 2021, 05:15:52 PM

Rooting for Levin here
Same.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on December 28, 2021, 05:21:00 PM
Really its Stevens who should be running in MI-10.



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Gass3268 on December 28, 2021, 05:26:15 PM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 28, 2021, 05:26:59 PM

What's the partisan breakdown here?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on December 28, 2021, 05:34:57 PM
It's looking like these midwestern states will be democracies heading into 2022: MI, MN, IA, OH (pending Supreme Court ruling)
These states will not be functioning democracies: IL, IN, WI

IA and OH assume that Republicans have an overwhelming advantage but will win based on fair maps.

This is an improvement with MI and OH potentially both upgrading their degree of democratic government over 2021. 


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 05:36:29 PM
It's looking like these midwestern states will be democracies heading into 2022: MI, MN, IA, OH (pending Supreme Court ruling)
These states will not be functioning democracies: IL, IN, WI

IA and OH assume that Republicans have an overwhelming advantage but will win based on fair maps.

How exactly is Michigan a Democracy but Indiana not?

Michigan splits East Lansing and Lansing in the senate and Indiana splits West and Lafayette in the senate. If you are going to complain about Indiana 05, the GR Muskegon seat is pretty damn bad as well.

The Indiana state house map is also pretty damn good on COI's from what Ive seen athough the state senate did keep the gerrymander.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on December 28, 2021, 05:40:33 PM
It's looking like these midwestern states will be democracies heading into 2022: MI, MN, IA, OH (pending Supreme Court ruling)
These states will not be functioning democracies: IL, IN, WI

IA and OH assume that Republicans have an overwhelming advantage but will win based on fair maps.

How exactly is Michigan a Democracy but Indiana not?

Michigan splits East Lansing and Lansing in the senate and Indiana splits West and Lafayette in the senate. If you are going to complain about Indiana 05, the GR Muskegon seat is pretty damn bad as well.

The Indiana state house map is also pretty damn good on COI's from what Ive seen athough the state senate did keep the gerrymander.
Michigan has some of the worst legislative maps in the entire midwest.

Michigan drew a map where if Republicans win a majority of the vote, they're probably winning the legislature, and vice versa for the Dems. That's what I mean by a functioning democracy. In Wisconsin, Democrats can win majority after majority of voters and still never get close to government.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 05:41:20 PM
It's looking like these midwestern states will be democracies heading into 2022: MI, MN, IA, OH (pending Supreme Court ruling)
These states will not be functioning democracies: IL, IN, WI

IA and OH assume that Republicans have an overwhelming advantage but will win based on fair maps.

How exactly is Michigan a Democracy but Indiana not?

Michigan splits East Lansing and Lansing in the senate and Indiana splits West and Lafayette in the senate. If you are going to complain about Indiana 05, the GR Muskegon seat is pretty damn bad as well.

The Indiana state house map is also pretty damn good on COI's from what Ive seen athough the state senate did keep the gerrymander.
Michigan has some of the worst legislative maps in the entire midwest.

Michigan drew a map where if Republicans win a majority of the vote, they're probably winning the legislature, and vice versa for the Dems. That's what I mean by a functioning democracy. In Wisconsin, Democrats can win majority after majority of voters and still never get close to government.

Why should Indiana Republicans be forced to draw a Democratic gerrymander before they can be called a Democracy?

What exactly is fair about Biden winning 55% of senate seats for partisan fairness? And yes I don't see anything wrong with that # but the Ann Arbor area is an explicit gerrymander so there was no reason to draw it like that.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on December 28, 2021, 05:46:28 PM
Why should Indiana Republicans be forced to draw a Democratic gerrymander before they can be called a Democracy?

Why did they need to draw a Republican gerrymander given that they're easily the majority party in the state any way?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 05:48:17 PM
Why should Indiana Republicans be forced to draw a Democratic gerrymander before they can be called a Democracy?

Why did they need to draw a Republican gerrymander given that they're easily the majority party in the state any way?

The state senate wanted to save their incumbents. It seems the state house didn't feel like that and drew a quite fair map that is probably the best legislative map in the Midwest other than maybe what MN will have. (It does have a few excessive unnecesary county splits IMO)


()

The MI senate map does this in Lansing/East Lansing. What exactly is the difference? You can't defend the MI state senate on partisan fairness grounds as it gives Biden 55% of seats so I don't really see the difference between Indiana vs Michigan's state senate maps while the Indiana state house map is infinitely superior (it has some mild incumbent protection in Hamilton County but it just involved in the new seat there being a Dem sink.)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 28, 2021, 05:55:31 PM
Lfromnj is totally right--correcting for geographic concentration is still disgusting gerrymandering.

Michigan Democrats should actually try to win over rural voters rather than forcing silly things cracking Ann Arbor.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on December 28, 2021, 05:57:39 PM
What exactly is fair about Biden winning 55% of senate seats for partisan fairness? And yes I don't see anything wrong with that # but the Ann Arbor area is an explicit gerrymander so there was no reason to draw it like that.

What's unfair about it? Biden won 51%, and there are only 38 Senators, so that's quite close. If Biden won one fewer seat, you'd be an exact match.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 06:00:02 PM
What exactly is fair about Biden winning 55% of senate seats for partisan fairness? And yes I don't see anything wrong with that # but the Ann Arbor area is an explicit gerrymander so there was no reason to draw it like that.

What's unfair about it? Biden won 51%, and there are only 38 Senators, so that's quite close. If Biden won one fewer seat, you'd be an exact match.

So why does the Ann Arbor or Lansing crack need to be done? Its clearly a gerrymander and there's no other justification other than partisan fairness but it doesn't even fill that goal. If you are going to attack Indiana as a non functioning Democracy than so is Michigan. I don't have a problem with Biden getting 55% of seats if it was natural, I have a issue with it being done through an independent commission and people trying to claim its a fair map. It also clearly goes beyond partisan fairness so they further gerrymandered than required to be "fair"

Also let's not forget the disgustingness of the VRA seats. People can complain about the current state house maps having the packed seats but the MI GOP created 5 black majority state senate seats that are not overpacked while still not splitting any city other than Detroit. (And no Wayne isn't gerrymandered, Oakland and Macomb are but wayne is drawn pretty fairly while still preserving COI's/city lines while working with the VRA)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 28, 2021, 06:01:59 PM
What exactly is fair about Biden winning 55% of senate seats for partisan fairness? And yes I don't see anything wrong with that # but the Ann Arbor area is an explicit gerrymander so there was no reason to draw it like that.

What's unfair about it? Biden won 51%, and there are only 38 Senators, so that's quite close. If Biden won one fewer seat, you'd be an exact match.

In a first past the post system, fairness shouldn't be measured by proportionality in results, because in theory the system is about representing distinct geographical communities rather than the combined preferences of all voters.

(I suspect we agree that that's pretty dumb--PR is obviously a better system--but if we are choosing to do FPTP we should actually do it in a way which is most sensible, rather than attempting a proportional map which likely won't stay that way all decade given trends and swings).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on December 28, 2021, 06:04:38 PM
What exactly is fair about Biden winning 55% of senate seats for partisan fairness? And yes I don't see anything wrong with that # but the Ann Arbor area is an explicit gerrymander so there was no reason to draw it like that.

What's unfair about it? Biden won 51%, and there are only 38 Senators, so that's quite close. If Biden won one fewer seat, you'd be an exact match.

So why does the Ann Arbor or Lansing crack need to be done? Its clearly a gerrymander and there's no other justification other than partisan fairness but it doesn't even fill that goal. If you are going to attack Indiana as a non functioning Democracy than so is Michigan. I don't have a problem with Biden getting 55% of seats if it was natural, I have a issue with it being done through an independent commission and people trying to claim its a fair map.

If what you are saying is that 1 additional crack more than necessary was done in the State Senate than if you wanted to match exactly to the Biden/Trump results, ok, it sounds like you've made that case.

What were the Trump/Clinton numbers on the new Senate map, BTW?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on December 28, 2021, 06:06:39 PM
What exactly is fair about Biden winning 55% of senate seats for partisan fairness? And yes I don't see anything wrong with that # but the Ann Arbor area is an explicit gerrymander so there was no reason to draw it like that.

What's unfair about it? Biden won 51%, and there are only 38 Senators, so that's quite close. If Biden won one fewer seat, you'd be an exact match.

In a first past the post system, fairness shouldn't be measured by proportionality in results, because in theory the system is about representing distinct geographical communities rather than the combined preferences of all voters.

(I suspect we agree that that's pretty dumb--PR is obviously a better system--but if we are choosing to do FPTP we should actually do it in a way which is most sensible, rather than attempting a proportional map which likely won't stay that way all decade given trends and swings).

You are getting at the heart of this issue here, and I think a problem is that people never chose the FPTP system because it's something we inherited from a long time ago before proportional systems were feasible. And we've seen in recent years how either independently or deliberately, it's used to disenfranchise minorities. When used in conjunction with entrenched racial segregation (WI), it's not far off what we had in the South before the 1960s.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on December 28, 2021, 06:08:02 PM
Lfromnj is totally right--correcting for geographic concentration is still disgusting gerrymandering.

I would argue that drawing maps to correct for undemocratic results because of residential patterns is not the same, not "disgusting", like drawing maps to exacerbate undemocratic results.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 06:12:34 PM
What exactly is fair about Biden winning 55% of senate seats for partisan fairness? And yes I don't see anything wrong with that # but the Ann Arbor area is an explicit gerrymander so there was no reason to draw it like that.

What's unfair about it? Biden won 51%, and there are only 38 Senators, so that's quite close. If Biden won one fewer seat, you'd be an exact match.

In a first past the post system, fairness shouldn't be measured by proportionality in results, because in theory the system is about representing distinct geographical communities rather than the combined preferences of all voters.

(I suspect we agree that that's pretty dumb--PR is obviously a better system--but if we are choosing to do FPTP we should actually do it in a way which is most sensible, rather than attempting a proportional map which likely won't stay that way all decade given trends and swings).

You are getting at the heart of this issue here, and I think a problem is that people never chose the FPTP system because it's something we inherited from a long time ago before proportional systems were feasible. And we've seen in recent years how either independently or deliberately, it's used to disenfranchise minorities. When used in conjunction with entrenched racial segregation (WI), it's not far off what we had in the South before the 1960s.

Wisconsin is not a good example.

Wisconsin clearly had functioning use of district representation. Paul Ryan won 60-70% of the vote in a swing SE wisconsin district. Tammy Baldwin struggled to win a Madison district. Democrats nearly won the Waukesha portion of a South Milwaukee Waukesha district in 2000.   It's pretty clear until very recently people in Wisconsin were clearly choosing for someone rather than a party to represent their district. PR makes little sense in this situation. Even if Paul Ryan is a far right hack the people of Southern Wisconsin chose him :P

Even then looking at racial segregation is a weak argument for Wisconsin even if Milwaukee is very segregated. In 2012 in the Milwaukee region you had super D arguably "packed" areas in Milwaukee. Then you had swingy suburban regions in the rest of the county . After that you had nearly as R areas that were higher turnout in WOW. It clearly cancels out.  The rest of the state had the strongly D Madison area and then a bunch of swingy rurals or small cities.

Now what happens:
A few inner ring suburbs flip near Milwaukee. WOW gets much less red but it doesn't matter.
The inner part of the Strongly D Madison area gets even more D but the surrounding rurals don't really change. The rest of the state gets more R. Milwaukee actually loses population and turnout crashes overall.

Segregation patterns didn't change. Voting patterns did.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Sol on December 28, 2021, 06:14:53 PM
Lfromnj is totally right--correcting for geographic concentration is still disgusting gerrymandering.

I would argue that drawing maps to correct for undemocratic results because of residential patterns is not the same, not "disgusting", like drawing maps to exacerbate undemocratic results.

The problem is is that FPTP doesn't actually solve that problem. A map which neatly approximates today's partisan divide has no guarantee of continuing to do so throughout the decade, and can actually end up acting as a partisan gerrymander.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on December 28, 2021, 06:17:47 PM
Lfromnj is totally right--correcting for geographic concentration is still disgusting gerrymandering.

I would argue that drawing maps to correct for undemocratic results because of residential patterns is not the same, not "disgusting", like drawing maps to exacerbate undemocratic results.

The problem is is that FPTP doesn't actually solve that problem. A map which neatly approximates today's partisan divide has no guarantee of continuing to do so throughout the decade, and can actually end up acting as a partisan gerrymander.

Oh, I agree. It's a hack at best. But a hack with a better chance of producing democratic results than a map drawn by one party.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 28, 2021, 06:24:26 PM
This cycle of line drawing has let it all hang out, and this thread does it in a raw and  brutal but candid manner, so KUDOS for that. The only way out is the German system. Absent that, the self righteous from both sides will flagellate  themselves and each other with no surcease, long after no one still living has any idea that i was ever on this planet,  with less impact than a fart in a windstorm.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on December 28, 2021, 06:50:06 PM
()

I placed a new district on DRA, taking into account the boundaries of the former districts. That's what I got as a result

The new 11th district includes
349,572 people from the former 11th district (Stevens)
233,676 people from the former 14th district (Lawrence)
192,254 people from the former 9th district (Levin)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 06:57:42 PM
()

I placed a new district on DRA, taking into account the boundaries of the former districts. That's what I got as a result

The new 11th district includes
349,572 people from the former 11th district (Stevens)
233,676 people from the former 14th district (Lawrence)
192,254 people from the former 9th district (Levin)

One thing to note is that other than Levin's home the parts from Levin's district is the Dem primary base .


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on December 28, 2021, 06:59:36 PM
()

I placed a new district on DRA, taking into account the boundaries of the former districts. That's what I got as a result

The new 11th district includes
349,572 people from the former 11th district (Stevens)
233,676 people from the former 14th district (Lawrence)
192,254 people from the former 9th district (Levin)

One thing to note is that other than Levin's home the parts from Levin's district is the Dem primary base .

Yes, but you can't exactly outmath a 2:3 ratio, roughly.



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 28, 2021, 07:00:39 PM
()

I placed a new district on DRA, taking into account the boundaries of the former districts. That's what I got as a result

The new 11th district includes
349,572 people from the former 11th district (Stevens)
233,676 people from the former 14th district (Lawrence)
192,254 people from the former 9th district (Levin)
I forgot how heavily Lawrence's seat went into Oakland. I certainly didn't expect her seat to have more territory within the new 11th than Levin's did.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 07:02:18 PM
()

I placed a new district on DRA, taking into account the boundaries of the former districts. That's what I got as a result

The new 11th district includes
349,572 people from the former 11th district (Stevens)
233,676 people from the former 14th district (Lawrence)
192,254 people from the former 9th district (Levin)

One thing to note is that other than Levin's home the parts from Levin's district is the Dem primary base .

Yes, but you can't exactly outmath a 2:3 ratio, roughly.



Oh yeah of course, I knew that Steven's would have more Biden voters but it does help Levin out.

Also by the way Stevens moved to Waterford. It really is funny how Stevens is from Waterford while Levin is from Bloomfield .


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on December 28, 2021, 07:11:33 PM
()

I placed a new district on DRA, taking into account the boundaries of the former districts. That's what I got as a result

The new 11th district includes
349,572 people from the former 11th district (Stevens)
233,676 people from the former 14th district (Lawrence)
192,254 people from the former 9th district (Levin)

()

Also did the same for MI-03. New MI-03 includes more people (443,012) from the Huizenga's district than from Meijer's district (386,991).

So, I wouldn't be surprised to see Huizenga running against Meijer and winning with Trump's endorsement and establishment support


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 07:16:28 PM
()

I placed a new district on DRA, taking into account the boundaries of the former districts. That's what I got as a result

The new 11th district includes
349,572 people from the former 11th district (Stevens)
233,676 people from the former 14th district (Lawrence)
192,254 people from the former 9th district (Levin)

()

Also did the same for MI-03. New MI-03 includes more people (443,012) from the Huizenga's district than from Meijer's district (386,991).

So, I wouldn't be surprised to see Huizenga running against Meijer and winning with Trump's endorsement and establishment support

Why would he want to primary Meijer over Upton?

Use the Andy Levin rule .


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on December 28, 2021, 07:24:25 PM
Yeah, maybe you're right. Upton's seat is more Republican-friedly and Huizenga may force Upton to retire, but also Meijer's district contains far more of former district of Huizenga than Upton's district


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 07:26:32 PM
Again we just saw Andy Levin do the same, why would we expect Huizenga to do any different?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on December 28, 2021, 07:30:21 PM
Again we just saw Andy Levin do the same, why would we expect Huizenga to do any different?

Huizenga probably will run in the district where he has a better chance of winning. And, yes, most likely you are right, and he will run in the new MI-04, because Upton is easier to beat than Meijer and MI-04 is far easier to hold in the general election than MI-03


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Born to Slay. Forced to Work. on December 28, 2021, 07:31:00 PM
What are the odds Meijer runs in the Grand Rapids districts and becomes a Katko like figure


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on December 28, 2021, 07:35:36 PM
What are the odds Meijer runs in the Grand Rapids districts and becomes a Katko like figure

I think that probability of his reelection campaign is very high, he amost certainly is running again. The only problem for him is the primary, but I don't think he will lose to MAGA candidate. And I think there's a pretty good chance that he'll win and be like Katko/Fitzpatrick.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on December 28, 2021, 07:37:18 PM
What are the odds Meijer runs in the Grand Rapids districts and becomes a Katko like figure

Well he is running in Grand Rapids. To get to the latter position he would first have to survive a GOP primary base eager for his scalp, and then a overall electorate that has consistently favored the Dems for all of the past decade, a lot of which is new as noted. The district is also more Blue than PA-01 or NY-24 were when the D's made attempts for them - and getting Bluer - so one would still expect a competitive race even if he gets more crossover support in future cycles.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 07:37:52 PM
People realize that he only did like 2.5 points better than Trump in a very ancestrally Republican area? John James only lost it by 2, although I have a hunch some of it was a media market advantage? No other reason for James to win Muskegon .


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: RussFeingoldWasRobbed on December 28, 2021, 07:39:33 PM
People realize that he only did like 2.5 points better than Trump in a very ancestrally Republican area? John James only lost it by 2, although I have a hunch some of it was a media market advantage? No other reason for James to win Muskegon .
That was before he got to congress and voted to impeach Trump. That will cause the moderate suburbanites to salivate over him


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 28, 2021, 07:40:13 PM
People realize that he only did like 2.5 points better than Trump in a very ancestrally Republican area? John James only lost it by 2, although I have a hunch some of it was a media market advantage? No other reason for James to win Muskegon .
That was before he got to congress and voted to impeach Trump. That will cause the moderate suburbanites to salivate over him

I mean he really should have done better consider his name sounds like a gold tier name. Just seems like he's a weak candidate.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tekken_Guy on December 28, 2021, 07:52:25 PM
Yeah, maybe you're right. Upton's seat is more Republican-friedly and Huizenga may force Upton to retire, but also Meijer's district contains far more of former district of Huizenga than Upton's district

If Moolenaar choses to run against Kildee then Huizenga will probably run in the 2nd.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 28, 2021, 07:56:52 PM
Yeah, maybe you're right. Upton's seat is more Republican-friedly and Huizenga may force Upton to retire, but also Meijer's district contains far more of former district of Huizenga than Upton's district

If Moolenaar choses to run against Kildee then Huizenga will probably run in the 2nd.
Welcome to: Musical Chairs, Michigan Version!


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: 😥 on December 28, 2021, 07:59:26 PM
Yeah, maybe you're right. Upton's seat is more Republican-friedly and Huizenga may force Upton to retire, but also Meijer's district contains far more of former district of Huizenga than Upton's district

If Moolenaar choses to run against Kildee then Huizenga will probably run in the 2nd.

Moolenaar declared that he will run in MI-02


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tekken_Guy on December 28, 2021, 08:07:31 PM
Yeah, maybe you're right. Upton's seat is more Republican-friedly and Huizenga may force Upton to retire, but also Meijer's district contains far more of former district of Huizenga than Upton's district

If Moolenaar choses to run against Kildee then Huizenga will probably run in the 2nd.

Moolenaar declared that he will run in MI-02

Oh, I didn't know that.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 28, 2021, 08:47:18 PM
Yeah, maybe you're right. Upton's seat is more Republican-friedly and Huizenga may force Upton to retire, but also Meijer's district contains far more of former district of Huizenga than Upton's district

If Moolenaar choses to run against Kildee then Huizenga will probably run in the 2nd.

Moolenaar declared that he will run in MI-02

Oh, I didn't know that.
Well, at least that clears things up.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Virginiá on December 28, 2021, 08:55:27 PM
Lfromnj is totally right--correcting for geographic concentration is still disgusting gerrymandering.

I would argue that drawing maps to correct for undemocratic results because of residential patterns is not the same, not "disgusting", like drawing maps to exacerbate undemocratic results.

Yeah, I don't see what is controversial about this. If you ask the vast majority of voters whether the party that wins the most votes for a legislature should get to govern, they'd very likely say yes. That is really all that should matter here. I get on a forum regarding drawing maps in the current system might take issue with what it takes to create those results, but at the most fundamental level, the legislature has to be responsive to the will of the people, even if those people are asymmetrically clustered for one party. If the people keep voting for one party to control the legislature but the party that gets fewer votes keeps winning majorities, like in Michigan, that is a dysfunctional democracy at best and corrupt at worst. Trying to talk to people about communities of interest isn't likely to placate their concerns that the majority's votes effectively don't matter. Perhaps urban voters will walk away with the belief that the communities of interest of rural and exurban Michigan matter much more than them. Perhaps the ideal compromise in our current system is one where COI matters but up to a point.

I guess at the heart of this conversation is what kind of system we hold elections under, which is fine. I vote we start with a system that actually responds to the will of the people like they expect.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: patzer on December 29, 2021, 06:57:57 AM
Yeah, maybe you're right. Upton's seat is more Republican-friedly and Huizenga may force Upton to retire, but also Meijer's district contains far more of former district of Huizenga than Upton's district

If Moolenaar choses to run against Kildee then Huizenga will probably run in the 2nd.

Moolenaar declared that he will run in MI-02
Odd, doesn’t he live in the 8th? Guess he’s just moving to a safer seat then.



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 29, 2021, 08:40:10 AM
Lfromnj is totally right--correcting for geographic concentration is still disgusting gerrymandering.

I would argue that drawing maps to correct for undemocratic results because of residential patterns is not the same, not "disgusting", like drawing maps to exacerbate undemocratic results.

Yeah, I don't see what is controversial about this. If you ask the vast majority of voters whether the party that wins the most votes for a legislature should get to govern, they'd very likely say yes. That is really all that should matter here. I get on a forum regarding drawing maps in the current system might take issue with what it takes to create those results, but at the most fundamental level, the legislature has to be responsive to the will of the people, even if those people are asymmetrically clustered for one party. If the people keep voting for one party to control the legislature but the party that gets fewer votes keeps winning majorities, like in Michigan, that is a dysfunctional democracy at best and corrupt at worst. Trying to talk to people about communities of interest isn't likely to placate their concerns that the majority's votes effectively don't matter. Perhaps urban voters will walk away with the belief that the communities of interest of rural and exurban Michigan matter much more than them. Perhaps the ideal compromise in our current system is one where COI matters but up to a point.

I guess at the heart of this conversation is what kind of system we hold elections under, which is fine. I vote we start with a system that actually responds to the will of the people like they expect.

Is your preference state by state? If so, you would support a Pub gerrymander in CA, because the Pubs are getting like 8 out of 52 seats, when they "should" be getting about a third of the pie. And it would be pretty gross to boot. Your whole system of trying to make it fair breaks down in states that are not quite closely balanced politically. And gerrymandering for fairness should really focus on the overall national result since these days with the polarized parties that is almost the only thing that matters. If you gerrymander for one party in one state, you probably will need to effectively gerrymander for the other party in another state, to make it "fair" overall. You are probably well on your way to opening a Pandora's Box.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Antonio the Sixth on December 29, 2021, 08:58:35 AM
Meh. Not the map I would have chosen, and the whole Stevens-Levin situation is a real headache. Birch seemed cleaner all around. Still, can't complain too much.

If 2022 goes really badly, Dems could end up with just 4 seats, but I guess that was probably hard to avoid.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on December 29, 2021, 09:06:57 AM
Is your preference state by state?...

I do think her argument is about state legislatures for state government, not Congress. There are a number of threads here but the context is the Michigan State Senate map. Not that Congress is "fixed" but it's a different problem with different solutions.  


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on December 29, 2021, 09:09:01 AM
What exactly is fair about Biden winning 55% of senate seats for partisan fairness? And yes I don't see anything wrong with that # but the Ann Arbor area is an explicit gerrymander so there was no reason to draw it like that.

lfromnj, I just noticed that the State House map has more Trump seats than Biden seats, even though Trump lost the state. Were you aware of this and if so, why didn't you mention it when decrying how unfair the Senate map was? It seems to be that two maps that are both quite close to parity, but biased in different directions, would cancel each other out in an elegant way. It would mean that any election that is close to 50-50 is likely to result in a split legislature and you need to get (pulling a random number) 53% or more to get unified government.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 29, 2021, 09:21:38 AM
Is your preference state by state?...

I do think her argument is about state legislatures for state government, not Congress. There are a number of threads here but the context is the Michigan State Senate map. Not that Congress is "fixed" but it's a different problem with different solutions.  


Fair enough. The problem still obtains, but you do not have the offsetting state issue. In states that are reasonably closely balanced, you probably want to have a bunch of closely balanced seats of different types, so if they trend, the trends might cancel each other out. What you don't want is for one party to be totally shut out of power if the vote totals are close overall. And then there is the issue of a two thirds majority issue in states less closely balanced, which often can matter quite a bit with veto overrides and other instances of supra majority requirements.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 29, 2021, 12:26:25 PM
What exactly is fair about Biden winning 55% of senate seats for partisan fairness? And yes I don't see anything wrong with that # but the Ann Arbor area is an explicit gerrymander so there was no reason to draw it like that.

lfromnj, I just noticed that the State House map has more Trump seats than Biden seats, even though Trump lost the state. Were you aware of this and if so, why didn't you mention it when decrying how unfair the Senate map was? It seems to be that two maps that are both quite close to parity, but biased in different directions, would cancel each other out in an elegant way. It would mean that any election that is close to 50-50 is likely to result in a split legislature and you need to get (pulling a random number) 53% or more to get unified government.

Because as I stated the Michigan state senate went above and beyond the gerrymander for partisan fairness. The ann arbor split is unnecessary  yet was still done. So I dont see why people are defending this as a pinnacle of fairness. The state house is not as strongly focused on partisan fairness and a bit closer to what naturally happens ? The state house map is still pretty garbage.  That 7 way split of Washentaw to begin with . The Monroe downriver triple split(which actually helps the Trump #s but is still garbage) 5 way split of grand rapids and Lansing Democrats basically getting to draw their own map.
I actually don't see that much wrong with a 21 17 split on paper. Its just they gerrymandered further than required if one even cares about partisan fairness.

Overall the Monroe Downriver split just shows the silliness of drawing in that manner. Trends change and go. Communities generally don't within 10 years(exceptions lie to areas like Loudoun county or similar)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Bojack Horseman on December 29, 2021, 02:14:13 PM
The fact that Flint is going to have a Republican congressman now with everything that city has gone through in the last 8 years is a slap in the face.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 29, 2021, 02:16:08 PM
The fact that Flint is going to have a Republican congressman now with everything that city has gone through in the last 8 years is a slap in the face.
Is it? Or are we assuming the 5th (what I'm assuming the district number of the Bay City-Midland-Flint CD is) is unwinnable for Ds in 2022?
I don't see Kildee running anywhere else. With his incumbency, Ds have a very good shot here. Even if he retired, the seat is still winnable. Also, unlike some other incumbents, Kildee actually has the vast majority of his territory retained.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Bojack Horseman on December 29, 2021, 03:06:24 PM
The fact that Flint is going to have a Republican congressman now with everything that city has gone through in the last 8 years is a slap in the face.
Is it? Or are we assuming the 5th (what I'm assuming the district number of the Bay City-Midland-Flint CD is) is unwinnable for Ds in 2022?
I don't see Kildee running anywhere else. With his incumbency, Ds have a very good shot here. Even if he retired, the seat is still winnable. Also, unlike some other incumbents, Kildee actually has the vast majority of his territory retained.

Saginaw and Bay City will soon be as red as Macomb County is. Especially if 2022 is the red wave everyone is expecting, Flint by itself may not be enough to save Kildee.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Virginiá on December 29, 2021, 04:00:06 PM
Is your preference state by state? If so, you would support a Pub gerrymander in CA, because the Pubs are getting like 8 out of 52 seats, when they "should" be getting about a third of the pie. And it would be pretty gross to boot. Your whole system of trying to make it fair breaks down in states that are not quite closely balanced politically. And gerrymandering for fairness should really focus on the overall national result since these days with the polarized parties that is almost the only thing that matters. If you gerrymander for one party in one state, you probably will need to effectively gerrymander for the other party in another state, to make it "fair" overall. You are probably well on your way to opening a Pandora's Box.

I don't really support the current system, so yeah. Democrats have a slightly better record on gerrymandering reform, but it's still atrocious what they have and haven't done. FPTP in single member districts drawn by the lawmakers themselves has done nothing but ruin both government and faith in government. You have entire decades in some states where the only thing keeping the majority party in power is the fact that at some point years prior they got to draw the lines, and drew them just well enough to cling to power even when they got less votes, and in some cases this level of control perpetuated itself through multiple redistricting cycles.. I can't blame voters for losing faith in the government's ability to do anything when the allocation of power frequently does not match up with the votes.

The bizarre system in this country is nearly impossible to change, too. It requires the buy-in of many lawmakers who are only office because of this system and the control it affords them, so I'm all for other, more sympathetic lawmakers and judges re-balancing the system in a more equitable way, when possible. I don't see any other way forward for change at the moment.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on December 29, 2021, 05:26:36 PM
Is your preference state by state? If so, you would support a Pub gerrymander in CA, because the Pubs are getting like 8 out of 52 seats, when they "should" be getting about a third of the pie. And it would be pretty gross to boot. Your whole system of trying to make it fair breaks down in states that are not quite closely balanced politically. And gerrymandering for fairness should really focus on the overall national result since these days with the polarized parties that is almost the only thing that matters. If you gerrymander for one party in one state, you probably will need to effectively gerrymander for the other party in another state, to make it "fair" overall. You are probably well on your way to opening a Pandora's Box.

I don't really support the current system, so yeah. Democrats have a slightly better record on gerrymandering reform, but it's still atrocious what they have and haven't done. FPTP in single member districts drawn by the lawmakers themselves has done nothing but ruin both government and faith in government. You have entire decades in some states where the only thing keeping the majority party in power is the fact that at some point years prior they got to draw the lines, and drew them just well enough to cling to power even when they got less votes, and in some cases this level of control perpetuated itself through multiple redistricting cycles.. I can't blame voters for losing faith in the government's ability to do anything when the allocation of power frequently does not match up with the votes.

The bizarre system in this country is nearly impossible to change, too. It requires the buy-in of many lawmakers who are only office because of this system and the control it affords them, so I'm all for other, more sympathetic lawmakers and judges re-balancing the system in a more equitable way, when possible. I don't see any other way forward for change at the moment.

I decided way back in college that a parliamentary system in the modern age would be far better for the US than what the Founders and history devised. Ditch the whole thing, except perhaps making a Constitution written as opposed to unwritten, and having a Court to be the final arbiter of that, but in general with courts having less power to make policy. It was at that point that I decided my odds of becoming POTUS were basically at absolute zero. I had nothing going for me at all. So I got more interested in land use law and urban planning. Cities have always fascinated me.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Stuart98 on December 29, 2021, 05:43:07 PM


Meijer seems to think MI-03 is a COI, so.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: kwabbit on December 29, 2021, 07:05:45 PM
I'm happy Meijer is showing some courage and sticking with his district. It's pretty close to a tossup even with it's adjustment left. Meijer should hypothetically be able to develop unique strength in his district. He's very moderate and carries the name of an iconic locally based business. I could see him keeping the district at least until the next blue wave and maybe even past that.

His 2020 performance was underwhelming, however. To do only +2 over Trump, who is an atrocious fit for the district, may signal that he is not very respected. Perhaps he's just viewed as a rich kid. Can someone from Western Michigan comment?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 29, 2021, 07:06:54 PM
I'm happy Meijer is showing some courage and sticking with his district. It's pretty close to a tossup even with it's adjustment left. Meijer should hypothetically be able to develop unique strength in his district. He's very moderate and carries the name of an iconic locally based business. I could see him keeping the district at least until the next blue wave and maybe even past that.

His 2020 performance was underwhelming, however. To do only +2 over Trump, who is an atrocious fit for the district, may signal that he is not very respected. Perhaps he's just viewed as a rich kid. Can someone from Western Michigan comment?

Meijer isn't that strong. He underran John James by like 3 points.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: kwabbit on December 29, 2021, 07:14:01 PM
I'm happy Meijer is showing some courage and sticking with his district. It's pretty close to a tossup even with it's adjustment left. Meijer should hypothetically be able to develop unique strength in his district. He's very moderate and carries the name of an iconic locally based business. I could see him keeping the district at least until the next blue wave and maybe even past that.

His 2020 performance was underwhelming, however. To do only +2 over Trump, who is an atrocious fit for the district, may signal that he is not very respected. Perhaps he's just viewed as a rich kid. Can someone from Western Michigan comment?

Meijer isn't that strong. He underran John James by like 3 points.

Was Hillary Scholten a good candidate? Meijer really should have done better given that he is a Meijer and the area's love of Republicans down ballot.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 29, 2021, 07:14:39 PM
I'm happy Meijer is showing some courage and sticking with his district. It's pretty close to a tossup even with it's adjustment left. Meijer should hypothetically be able to develop unique strength in his district. He's very moderate and carries the name of an iconic locally based business. I could see him keeping the district at least until the next blue wave and maybe even past that.

His 2020 performance was underwhelming, however. To do only +2 over Trump, who is an atrocious fit for the district, may signal that he is not very respected. Perhaps he's just viewed as a rich kid. Can someone from Western Michigan comment?

Meijer isn't that strong. He underran John James by like 3 points.

Was Hillary Scholten a good candidate? Meijer really should have done better given that he is a Meijer and the area's love of Republicans down ballot.

Turns out he just isn't a very good candidate.

Paging MT Treasurer.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Roll Roons on December 29, 2021, 07:19:21 PM
I'm happy Meijer is showing some courage and sticking with his district. It's pretty close to a tossup even with it's adjustment left. Meijer should hypothetically be able to develop unique strength in his district. He's very moderate and carries the name of an iconic locally based business. I could see him keeping the district at least until the next blue wave and maybe even past that.

His 2020 performance was underwhelming, however. To do only +2 over Trump, who is an atrocious fit for the district, may signal that he is not very respected. Perhaps he's just viewed as a rich kid. Can someone from Western Michigan comment?

Meijer isn't that strong. He underran John James by like 3 points.

Was Hillary Scholten a good candidate? Meijer really should have done better given that he is a Meijer and the area's love of Republicans down ballot.

Turns out he just isn't a very good candidate.

Paging MT Treasurer.

I feel like he's actually a better candidate now than he was in 2020. He has the experience of running in a tough race and he's started to carve out a distinctive brand, while he was previously somewhat of a Generic R.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on December 29, 2021, 07:41:49 PM
I'm happy Meijer is showing some courage and sticking with his district. It's pretty close to a tossup even with it's adjustment left. Meijer should hypothetically be able to develop unique strength in his district. He's very moderate and carries the name of an iconic locally based business. I could see him keeping the district at least until the next blue wave and maybe even past that.

His 2020 performance was underwhelming, however. To do only +2 over Trump, who is an atrocious fit for the district, may signal that he is not very respected. Perhaps he's just viewed as a rich kid. Can someone from Western Michigan comment?

Meijer isn't that strong. He underran John James by like 3 points.

Was Hillary Scholten a good candidate? Meijer really should have done better given that he is a Meijer and the area's love of Republicans down ballot.

Turns out he just isn't a very good candidate.

Paging MT Treasurer.

I feel like he's actually a better candidate now than he was in 2020. He has the experience of running in a tough race and he's started to carve out a distinctive brand, while he was previously somewhat of a Generic R.

He had gold tier name recognition. Its pretty clear he's a fairly meh candidate and I don't see how impeaching Trump is going to make him god tier with moderates.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on December 29, 2021, 07:50:53 PM

He had gold tier name recognition. Its pretty clear he's a fairly meh candidate and I don't see how impeaching Trump is going to make him god tier with moderates.

If anything, it makes him 50-50 at best in the GOP primary - all those new D voters are choosing the D ballot of course and most of the R areas are new - and if he loses to the type of candidate who would appeal to the base then goodbye to any hope of a R hold.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on December 29, 2021, 11:46:37 PM
One interesting thing to think about is that a decade ago the GOP gerrymander confined Detroit to 4 safe D seats. A decade later a fair map by the commission still only gives Detroit 4 D seats (though a 5th seat which is competitive). Even though the seat that doesn’t seem to have a successor is MI-02, the downtown Detroit seats in particular were way underpopulated by the end of the decade and had to expand. While one could say part of this phenomenon is due to Dem losses in Macomb, I’d argue Dem gains in Oakland more than cancel that out.

Looking back at old maps crazy to think how Detroit metro single-handedly got like 10 CDs. I mean just go on wiki and see how tiny the downtown Detroit districts were as recently as the 70s and 80s; between every decade there’s a clear loss in Detroit. It seems like Detroit isn’t shrinking as badly as it used to and the suburbs are actually growing enough to prolly sustain MI-11 so it won’t be badly underpopulated even if MI loses a seat next decade, but weird to think how on my lifetime Detroit may be down to only 2 CDs.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: nclib on December 31, 2021, 05:24:52 PM
()

For reference here is the final map, with a DRA link:
https://davesredistricting.org/maps#viewmap::538b84c5-9d2a-402f-b5fd-b1b8320a6f01

(For the record, it is a little sad to see Meijer get put in a DEM-leaning seat. I liked him a lot. I hope he is able to hold on this year)

That doesn't appear to be the final map, and if it is, the numbers are wrong.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on December 31, 2021, 06:05:39 PM
()

For reference here is the final map, with a DRA link:
https://davesredistricting.org/maps#viewmap::538b84c5-9d2a-402f-b5fd-b1b8320a6f01

(For the record, it is a little sad to see Meijer get put in a DEM-leaning seat. I liked him a lot. I hope he is able to hold on this year)

That doesn't appear to be the final map, and if it is, the numbers are wrong.

If it's not the final map it's at least very close. The new MI-03 is Biden + 8.47 according to my calculations. However, it only went to Peters by 2 and Stabenow by 3; Clinton won it by the skin of her teeth and it went to Romney pretty easily.

Overall it's a seat that seems to still be a tossup downballot but is swinging hard D


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: BoiseBoy on December 31, 2021, 08:10:17 PM
I imported the map using shapefiles from the MICRC website. It seems they made some very minor adjustments to the map like cutting into Monroe to keep Milan whole since then.

I've re-imported the shapefiles and you can find the map here:
https://davesredistricting.org/maps#viewmap::79809ebd-9d45-43a0-9319-765ed6ce62d0


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Bojack Horseman on December 31, 2021, 08:11:23 PM
The new Congressional map is facing a lawsuit and I'd wager it will be struck down on VRA grounds. There is not a single minority-majority district in the new map because they played Tetris in Detroit. Minority vote dilution is also a significant concern in the state legislative maps, where inner city neighborhoods were deliberately balanced by the white suburbs. While the House will likely stay Republican under the new map, the Senate could very plausibly yield a 20-18 majority for Democrats if the maps were to actually go into effect.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on December 31, 2021, 08:29:28 PM
The new Congressional map is facing a lawsuit and I'd wager it will be struck down on VRA grounds. There is not a single minority-majority district in the new map because they played Tetris in Detroit. Minority vote dilution is also a significant concern in the state legislative maps, where inner city neighborhoods were deliberately balanced by the white suburbs. While the House will likely stay Republican under the new map, the Senate could very plausibly yield a 20-18 majority for Democrats if the maps were to actually go into effect.

The commission and the minority interest groups that spoke before it quite literally had racially polarized voting data showing that 50% districts were unnecessary packs and lowering the percentages a bit below 50% - necessitating strips sadly cause the whites are north of Wayne - would expand minority access without damaging minority opportunity.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: compucomp on December 31, 2021, 10:54:26 PM
The new Congressional map is facing a lawsuit and I'd wager it will be struck down on VRA grounds. There is not a single minority-majority district in the new map because they played Tetris in Detroit. Minority vote dilution is also a significant concern in the state legislative maps, where inner city neighborhoods were deliberately balanced by the white suburbs. While the House will likely stay Republican under the new map, the Senate could very plausibly yield a 20-18 majority for Democrats if the maps were to actually go into effect.

The commission and the minority interest groups that spoke before it quite literally had racially polarized voting data showing that 50% districts were unnecessary packs and lowering the percentages a bit below 50% - necessitating strips sadly cause the whites are north of Wayne - would expand minority access without damaging minority opportunity.

We'll see how the courts see it. I remember reading about the "unholy alliance" of white Republicans and blacks in the South on the subject of redistricting; black politicians wanted districts packed with black people to ensure that they would get elected since the prevailing thought was that white people regardless of party wouldn't vote for black people, and white Republicans were all too happy to oblige since it fit perfectly with the usual gerrymandering strategy. Perhaps that unholy alliance has been activated here and the Republicans found some black activists or politicians to join their side.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: politicallefty on January 01, 2022, 06:42:19 AM
I think the Michigan map is quite interesting, but also acceptable. It's quite similar to the map I drew on page 20, with the major exceptions being that I drew the proposed MI-04, MI-05, and MI-06 quite differently and that the proposed Macomb district is more Democratic than my map. But as expected, the current MI-02 and MI-04 are basically collapsed into one district due to the loss of a district and population loss.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: patzer on January 01, 2022, 07:49:47 AM
I do think it's a bit odd that they've unnecessarily split Detroit between multiple congressional districts.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on January 01, 2022, 09:35:45 AM
The new Congressional map is facing a lawsuit and I'd wager it will be struck down on VRA grounds. There is not a single minority-majority district in the new map because they played Tetris in Detroit. Minority vote dilution is also a significant concern in the state legislative maps, where inner city neighborhoods were deliberately balanced by the white suburbs. While the House will likely stay Republican under the new map, the Senate could very plausibly yield a 20-18 majority for Democrats if the maps were to actually go into effect.

In both the Detroit based CD's, blacks are still a majority of the voters in Dem primaries, so a VRA claim seems DOA right out of the box.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Brittain33 on January 01, 2022, 09:46:25 AM
I do think it's a bit odd that they've unnecessarily split Detroit between multiple congressional districts.

I think there’s a psychological barrier to reducing Detroit to 1 representative, plus it would probably result in an 75% AA district (depending on what else is added) which would be an illegal pack.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on January 01, 2022, 09:57:25 AM
I do think it's a bit odd that they've unnecessarily split Detroit between multiple congressional districts.

I think there’s a psychological barrier to reducing Detroit to 1 representative, plus it would probably result in an 75% AA district (depending on what else is added) which would be an illegal pack.

It would be an illegal pack only if Gingles triggers two black CD's. The trigger is right on the cusp, assuming block voting. I can barely draw 50% BCVAP CD's based on the 2019 ACS estimates, which  is really more like 2016 figures, without reaching for Pontiac.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Mr.Phips on January 01, 2022, 10:58:44 AM
The new Congressional map is facing a lawsuit and I'd wager it will be struck down on VRA grounds. There is not a single minority-majority district in the new map because they played Tetris in Detroit. Minority vote dilution is also a significant concern in the state legislative maps, where inner city neighborhoods were deliberately balanced by the white suburbs. While the House will likely stay Republican under the new map, the Senate could very plausibly yield a 20-18 majority for Democrats if the maps were to actually go into effect.

Those groups would be better off focusing on states like AR, SC, AL, and SC where more black influence seats could clearly be created than wasting their time and resources on Michigan.  The two Detroit districts can easily elect a member of African American voters’ choice.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on January 01, 2022, 01:55:10 PM
I decided that Michigan badly needed a map beautification program, and came up with this stunning specimen, thereby deserving a tree moniker of equal magnificence. Can you guess the name of the species?

It also has diversity. Every county in the state but one, has a real potential of having at least a portion thereof represented by a Pub.

()

https://davesredistricting.org/join/e533be5d-680c-42be-924f-f2c4d0f37b90



Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Chancellor Tanterterg on January 01, 2022, 02:33:01 PM
I decided that Michigan badly needed a map beautification program, and came up with this stunning specimen, thereby deserving a tree moniker of equal magnificence. Can you guess the name of the species?

It also has diversity. Every county in the state but one, has a real potential of having at least a portion thereof represented by a Pub.

()

https://davesredistricting.org/join/e533be5d-680c-42be-924f-f2c4d0f37b90



I don’t know about trees, but given that it’s a Republican gerrymander, Poisonwood seems like a rather apt name :P


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on January 01, 2022, 09:16:09 PM
Fun fact; Obama '08 won every district except MI-09 which ig isn't too suprising but still just awes me.

Also, according to my calculations, every district would be underpopulated today if they existed in the prior decade if that makes sense; only 3 and 12 came close to holding their ground


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on January 03, 2022, 07:46:31 PM
()

An interesting development in also how stupid they went for partisan fairness. They crossed the Monroe Wayne border multiple times to create more Dem composite districts but actually increases a Trump district. Meanwhile they also split Washtenaw like 7 times. It perfectly nests into 4 very clean and obvious COI seats(Ann Arbor North and 1 South, 1 Ypsi, 1 rest of county)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on January 03, 2022, 08:24:56 PM
The House map would have been better if they used NC-style nesting. They don't need to split counties left and right like this to get proportionality.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Bojack Horseman on January 05, 2022, 10:08:46 PM
()

An interesting development in also how stupid they went for partisan fairness. They crossed the Monroe Wayne border multiple times to create more Dem composite districts but actually increases a Trump district. Meanwhile they also split Washtenaw like 7 times. It perfectly nests into 4 very clean and obvious COI seats(Ann Arbor North and 1 South, 1 Ypsi, 1 rest of county)

The ironic thing is that it was pretty much intended to be a D gerrymander because anything short of that would pretty much be an R gerrymander.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on January 29, 2022, 02:42:53 PM
https://www.wkar.org/wkar-news/2022-01-28/league-of-women-voters-activist-groups-plan-suit-over-partisan-bias-of-michigans-new-districts

Over the state house map because muh 2% R efficiency gap. Don't forget they already split Washtenaw 7 ways, Lansing Democrats and GR Dems get 5 seats each as well. Meanwhile downriver and Macomb dems could get absolutely screwed for 2022.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Libertas Vel Mors on January 30, 2022, 02:22:03 AM
https://www.wkar.org/wkar-news/2022-01-28/league-of-women-voters-activist-groups-plan-suit-over-partisan-bias-of-michigans-new-districts

Over the state house map because muh 2% R efficiency gap. Don't forget they already split Washtenaw 7 ways, Lansing Democrats and GR Dems get 5 seats each as well. Meanwhile downriver and Macomb dems could get absolutely screwed for 2022.

And here I was thinking that the LWV had developed a conscience and was opposing comissionmandering lol.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 03, 2022, 07:13:24 PM


The legislative suit, alleging that the commissions RPV analysts had it wrong and African American seats need to by >50% by VAP, is over. One D judge dissented, one R concurred with the three other majority Ds. There remains a GOP OMOV suit on the congressional map.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on February 04, 2022, 11:11:25 AM
I decided that Michigan badly needed a map beautification program, and came up with this stunning specimen, thereby deserving a tree moniker of equal magnificence. Can you guess the name of the species?

It also has diversity. Every county in the state but one, has a real potential of having at least a portion thereof represented by a Pub.

()

https://davesredistricting.org/join/e533be5d-680c-42be-924f-f2c4d0f37b90



I don’t know about trees, but given that it’s a Republican gerrymander, Poisonwood seems like a rather apt name :P

Redwood of course. It's beautiful and of the right color.  O:)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Skill and Chance on February 04, 2022, 11:18:41 AM


The legislative suit, alleging that the commissions RPV analysts had it wrong and African American seats need to by >50% by VAP, is over. One D judge dissented, one R concurred with the three other majority Ds. There remains a GOP OMOV suit on the congressional map.

This was not a party-line decision, even though the court is currently  4D/3R.  One Republican voted to  uphold the map and one Democrat voted to strike it down.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: I spent the winter writing songs about getting better on February 04, 2022, 01:54:10 PM
Isn't one of the Republicans on the Michigan Supreme Court basically a RINO though?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: lfromnj on March 29, 2022, 04:38:57 PM
https://www.detroitnews.com/story/news/politics/2022/03/29/black-residents-challenge-metro-detroit-redistricting-maps-federal-court/7202491001/?gnt-cfr=1

Federal lawsuit over Michigan legislative maps.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Torie on March 29, 2022, 05:30:52 PM
https://www.detroitnews.com/story/news/politics/2022/03/29/black-residents-challenge-metro-detroit-redistricting-maps-federal-court/7202491001/?gnt-cfr=1

Federal lawsuit over Michigan legislative maps.


That won't go anywhere, unless ir cut down compact gingles protected black performing districts, which I strongly doubt.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on March 29, 2022, 10:25:01 PM
https://www.detroitnews.com/story/news/politics/2022/03/29/black-residents-challenge-metro-detroit-redistricting-maps-federal-court/7202491001/?gnt-cfr=1

Federal lawsuit over Michigan legislative maps.


That won't go anywhere, unless ir cut down compact gingles protected black performing districts, which I strongly doubt.

Tbf the commission went kinda hard on unpacking Detroit and bacon stripped many black areas pretty far out. 2022 will be a test to see how many of the districts perform.

Really though the legislative maps are gross, especially since there are easier ways to achieve relative equality. I'd say the CD map is prolly one of the best in the nation though.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on March 30, 2022, 09:12:30 AM
https://www.detroitnews.com/story/news/politics/2022/03/29/black-residents-challenge-metro-detroit-redistricting-maps-federal-court/7202491001/?gnt-cfr=1

Federal lawsuit over Michigan legislative maps.


That won't go anywhere, unless ir cut down compact gingles protected black performing districts, which I strongly doubt.

Tbf the commission went kinda hard on unpacking Detroit and bacon stripped many black areas pretty far out. 2022 will be a test to see how many of the districts perform.

Really though the legislative maps are gross, especially since there are easier ways to achieve relative equality. I'd say the CD map is prolly one of the best in the nation though.
My biggest gripe with the maps is that they seem to completely ignore county lines.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Schiff for Senate on December 09, 2022, 09:21:14 PM
(Bumping a very old thread - I know, I'm sorry!)

Competitive map I came up with for MI:  https://davesredistricting.org/maps#viewmap::10f6b431-05bf-43fa-ad0d-3ec99eddd423. 3 Safe R seats, 3 Safe D seats, and 7 (yes, 7) very competitive seats (the election I used was the 2020 presidential race). Just quickly skimming through their 2020 and 2016 presidential voting (plus the 2020 Senate race to compare where Biden over and unperformed Peters):

District: 2020-PRES, 2020-SEN (2016-PRES)
1: Biden+2.2; James+3.3 (Trump+5.3)
2: Trump+3.5; James+8.6 (Trump+9.0)
3: Trump+22.3; James+24.2 (Trump+24.1)
4: Biden+0.4; James+0.5 (Trump+2.0)
5: Trump+21.5; James+20.8 (Trump+24.6)
6: Biden+1.0; Peters+3.2 (Clinton+0.8)
7: Trump+26.3; James+24.5 (Trump+27.8)
8: Biden+1.1; James+1.0 (Trump+4.7)
9: Trump+0.1; Peters+1.5 (Trump+4.4)
10: Biden+2.4; Peters+1.1 (Clinton+0.5)
11: Biden+30.0; Peters+26.9 (Clinton+25.4)
12: Biden+15.9; Peters+16.9 (Clinton+11.9)
13: Biden+77.9; Peters+75.6 (Clinton+80.1)

Biden (D) won 8 districts in 2020; Trump (R) won 5.
James (R) won 7 districts in 2020; Peters (D) won 6.
Trump won 8 districts in 2020; Clinton (D) won 5.
And, surprising me, even Gretchen Whitmer (D) only won 8 districts in 2018. I'd have guessed she won 9 or perhaps even 10 (with 10 probably being a stretch).

You can see that generally, in Western MI, Biden did noticeably better than Gary Peters and Hillary Clinton, whereas in Eastern MI, there wasn't much of a difference. While Peters ran behind Biden throughout Western/Southwestern MI, in the eastern portion of the state, he tended to do better than Biden (in certain districts, at least - including the state's lone Peters/Trump district). And, of course, while Biden did much better than Clinton throughout suburban Southwest MI, in rural and urban MI, either Clinton did better than Biden, or Biden did only a little better than Clinton.

One novelty here IMO is MI08 and MI09. These are two seemingly very similar, purple districts in the Macomb/Oakland County area. However, interestingly, the 8th is a Biden-James district (Biden+1.1; James+1.0) while the 9th is the opposite - a Trump-Peters district (Trump+0.1; Peters+1.5)! I wonder why this is the case. (Of course, both the 8th and the 9th voted for Trump in 2016.)


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on December 09, 2022, 09:28:20 PM
(Bumping a very old thread - I know, I'm sorry!)

Competitive map I came up with for MI:  https://davesredistricting.org/maps#viewmap::10f6b431-05bf-43fa-ad0d-3ec99eddd423. 3 Safe R seats, 3 Safe D seats, and 7 (yes, 7) very competitive seats (the election I used was the 2020 presidential race). Just quickly skimming through their 2020 and 2016 presidential voting (plus the 2020 Senate race to compare where Biden over and unperformed Peters):

District: 2020-PRES, 2020-SEN (2016-PRES)
1: Biden+2.2; James+3.3 (Trump+5.3)
2: Trump+3.5; James+8.6 (Trump+9.0)
3: Trump+22.3; James+24.2 (Trump+24.1)
4: Biden+0.4; James+0.5 (Trump+2.0)
5: Trump+21.5; James+20.8 (Trump+24.6)
6: Biden+1.0; Peters+3.2 (Clinton+0.8)
7: Trump+26.3; James+24.5 (Trump+27.8)
8: Biden+1.1; James+1.0 (Trump+4.7)
9: Trump+0.1; Peters+1.5 (Trump+4.4)
10: Biden+2.4; Peters+1.1 (Clinton+0.5)
11: Biden+30.0; Peters+26.9 (Clinton+25.4)
12: Biden+15.9; Peters+16.9 (Clinton+11.9)
13: Biden+77.9; Peters+75.6 (Clinton+80.1)

Biden (D) won 8 districts in 2020; Trump (R) won 5.
James (R) won 7 districts in 2020; Peters (D) won 6.
Trump won 8 districts in 2020; Clinton (D) won 5.
And, surprising me, even Gretchen Whitmer (D) only won 8 districts in 2018. I'd have guessed she won 9 or perhaps even 10 (with 10 probably being a stretch).

You can see that generally, in Western MI, Biden did noticeably better than Gary Peters and Hillary Clinton, whereas in Eastern MI, there wasn't much of a difference. While Peters ran behind Biden throughout Western/Southwestern MI, in the eastern portion of the state, he tended to do better than Biden (in certain districts, at least - including the state's lone Peters/Trump district). And, of course, while Biden did much better than Clinton throughout suburban Southwest MI, in rural and urban MI, either Clinton did better than Biden, or Biden did only a little better than Clinton.

One novelty here IMO is MI08 and MI09. These are two seemingly very similar, purple districts in the Macomb/Oakland County area. However, interestingly, the 8th is a Biden-James district (Biden+1.1; James+1.0) while the 9th is the opposite - a Trump-Peters district (Trump+0.1; Peters+1.5)! I wonder why this is the case. (Of course, both the 8th and the 9th voted for Trump in 2016.)

The Detroit suburbs are really fascinating, and there's a pretty remarkable divide between Wayne, Oakland, and Macomb Counties. You can very clearly see the racial divide between Wayne and Oakland/Macomb counties where the black population experiences a very sudden dropoff from like 96% black precincts to majority white precincts. This divide has been fading the past few decades though.

Between Oakland and Macomb, you def have geopolitical and economic divide. Macomb County is a bit more stereotypical "white working-class suburbs" that have been shifting right under Trump but still have residual downballot D support, whereas Oakland is your stereotypical growing "well to do" white collar suburb that has been swinging left but has some residual down ballot R support. It's not so obvious on DRA, but on 2020 Pres numbers you can see a decently sharp political contrast, and on Google Maps you'll notice the communities in Oakland County have significantly more "greenery" than neighboring Macomb making the County line decently notable.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Schiff for Senate on December 09, 2022, 09:31:57 PM
(Bumping a very old thread - I know, I'm sorry!)

Competitive map I came up with for MI:  https://davesredistricting.org/maps#viewmap::10f6b431-05bf-43fa-ad0d-3ec99eddd423. 3 Safe R seats, 3 Safe D seats, and 7 (yes, 7) very competitive seats (the election I used was the 2020 presidential race). Just quickly skimming through their 2020 and 2016 presidential voting (plus the 2020 Senate race to compare where Biden over and unperformed Peters):

District: 2020-PRES, 2020-SEN (2016-PRES)
1: Biden+2.2; James+3.3 (Trump+5.3)
2: Trump+3.5; James+8.6 (Trump+9.0)
3: Trump+22.3; James+24.2 (Trump+24.1)
4: Biden+0.4; James+0.5 (Trump+2.0)
5: Trump+21.5; James+20.8 (Trump+24.6)
6: Biden+1.0; Peters+3.2 (Clinton+0.8)
7: Trump+26.3; James+24.5 (Trump+27.8)
8: Biden+1.1; James+1.0 (Trump+4.7)
9: Trump+0.1; Peters+1.5 (Trump+4.4)
10: Biden+2.4; Peters+1.1 (Clinton+0.5)
11: Biden+30.0; Peters+26.9 (Clinton+25.4)
12: Biden+15.9; Peters+16.9 (Clinton+11.9)
13: Biden+77.9; Peters+75.6 (Clinton+80.1)

Biden (D) won 8 districts in 2020; Trump (R) won 5.
James (R) won 7 districts in 2020; Peters (D) won 6.
Trump won 8 districts in 2020; Clinton (D) won 5.
And, surprising me, even Gretchen Whitmer (D) only won 8 districts in 2018. I'd have guessed she won 9 or perhaps even 10 (with 10 probably being a stretch).

You can see that generally, in Western MI, Biden did noticeably better than Gary Peters and Hillary Clinton, whereas in Eastern MI, there wasn't much of a difference. While Peters ran behind Biden throughout Western/Southwestern MI, in the eastern portion of the state, he tended to do better than Biden (in certain districts, at least - including the state's lone Peters/Trump district). And, of course, while Biden did much better than Clinton throughout suburban Southwest MI, in rural and urban MI, either Clinton did better than Biden, or Biden did only a little better than Clinton.

One novelty here IMO is MI08 and MI09. These are two seemingly very similar, purple districts in the Macomb/Oakland County area. However, interestingly, the 8th is a Biden-James district (Biden+1.1; James+1.0) while the 9th is the opposite - a Trump-Peters district (Trump+0.1; Peters+1.5)! I wonder why this is the case. (Of course, both the 8th and the 9th voted for Trump in 2016.)

The Detroit suburbs are really fascinating, and there's a pretty remarkable divide between Wayne, Oakland, and Macomb Counties. You can very clearly see the racial divide between Wayne and Oakland/Macomb counties where the black population experiences a very sudden dropoff from like 96% black precincts to majority white precincts. This divide has been fading the past few decades though.

Between Oakland and Macomb, you def have geopolitical and economic divide. Macomb County is a bit more stereotypical "white working-class suburbs" that have been shifting right under Trump but still have residual downballot D support, whereas Oakland is your stereotypical growing "well to do" white collar suburb that has been swinging left but has some residual down ballot R support. It's not so obvious on DRA, but on 2020 Pres numbers you can see a decently sharp political contrast, and on Google Maps you'll notice the communities in Oakland County have significantly more "greenery" than neighboring Macomb making the County line decently notable.

Some interesting points you made. What I noticed on DRA is how stark the difference is between Southern Macomb and Oakland and Northern Wayne - those below the line are noticeably even more Democratic than those above the line. Like, maybe those above the line are even close to 80% Democratic, but the moment you go into Wayne, it goes into 90%+ D mode. Even with county lines turned off, you can pretty much see the dividing line between Wayne County and Macomb/Oakland Counties.

Also, I kind of suspected what you said about Macomb vs Oakland (worth noting that my 8th district, the Biden-James won, is mostly in Oakland; while the 9th, the Trump-Peters won, is much more Macomb-centric). I'm guessing Washtenaw County is much more similar to Oakland than Macomb?


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: President Punxsutawney Phil on December 10, 2022, 12:36:31 AM
(Bumping a very old thread - I know, I'm sorry!)
Btw, while I have not yet the time to look at the map you've drawn, don't feel bad about bumping these kinds of threads. They exist for a reason.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: palandio on December 11, 2022, 04:44:19 AM
(Bumping a very old thread - I know, I'm sorry!)

Competitive map I came up with for MI:  https://davesredistricting.org/maps#viewmap::10f6b431-05bf-43fa-ad0d-3ec99eddd423. 3 Safe R seats, 3 Safe D seats, and 7 (yes, 7) very competitive seats (the election I used was the 2020 presidential race). Just quickly skimming through their 2020 and 2016 presidential voting (plus the 2020 Senate race to compare where Biden over and unperformed Peters):

District: 2020-PRES, 2020-SEN (2016-PRES)
1: Biden+2.2; James+3.3 (Trump+5.3)
2: Trump+3.5; James+8.6 (Trump+9.0)
3: Trump+22.3; James+24.2 (Trump+24.1)
4: Biden+0.4; James+0.5 (Trump+2.0)
5: Trump+21.5; James+20.8 (Trump+24.6)
6: Biden+1.0; Peters+3.2 (Clinton+0.8)
7: Trump+26.3; James+24.5 (Trump+27.8)
8: Biden+1.1; James+1.0 (Trump+4.7)
9: Trump+0.1; Peters+1.5 (Trump+4.4)
10: Biden+2.4; Peters+1.1 (Clinton+0.5)
11: Biden+30.0; Peters+26.9 (Clinton+25.4)
12: Biden+15.9; Peters+16.9 (Clinton+11.9)
13: Biden+77.9; Peters+75.6 (Clinton+80.1)

Biden (D) won 8 districts in 2020; Trump (R) won 5.
James (R) won 7 districts in 2020; Peters (D) won 6.
Trump won 8 districts in 2020; Clinton (D) won 5.
And, surprising me, even Gretchen Whitmer (D) only won 8 districts in 2018. I'd have guessed she won 9 or perhaps even 10 (with 10 probably being a stretch).

You can see that generally, in Western MI, Biden did noticeably better than Gary Peters and Hillary Clinton, whereas in Eastern MI, there wasn't much of a difference. While Peters ran behind Biden throughout Western/Southwestern MI, in the eastern portion of the state, he tended to do better than Biden (in certain districts, at least - including the state's lone Peters/Trump district). And, of course, while Biden did much better than Clinton throughout suburban Southwest MI, in rural and urban MI, either Clinton did better than Biden, or Biden did only a little better than Clinton.

One novelty here IMO is MI08 and MI09. These are two seemingly very similar, purple districts in the Macomb/Oakland County area. However, interestingly, the 8th is a Biden-James district (Biden+1.1; James+1.0) while the 9th is the opposite - a Trump-Peters district (Trump+0.1; Peters+1.5)! I wonder why this is the case. (Of course, both the 8th and the 9th voted for Trump in 2016.)

The thing about Michigan is that several highly competitive districts are basically default (e.g. Lansing, Grand Rapids), others are not inevitable, but easy to draw (Flint-Saginaw and two districts in Macomb and Oakland). Some are a bit of a stretch (from Kalamazoo to its West, from Outer Wayne County to its South) and some seem artificial (pairing Ann Arbor with rurals). But the main challenge is to get them all on one map.

The following map is based on the new congressional map (which has its issues, of course) and doesn't rely on major district contortionism. The biggest change is in the area of the 5th and 6th. Apart from that it's mostly some tweaking around to get the districts fully competitive. And it's just a quick sketch.
https://davesredistricting.org/join/869ca613-10ce-4f8d-bda9-c1963b1331ac


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Schiff for Senate on December 13, 2022, 08:58:38 PM
(Bumping a very old thread - I know, I'm sorry!)

Competitive map I came up with for MI:  https://davesredistricting.org/maps#viewmap::10f6b431-05bf-43fa-ad0d-3ec99eddd423. 3 Safe R seats, 3 Safe D seats, and 7 (yes, 7) very competitive seats (the election I used was the 2020 presidential race). Just quickly skimming through their 2020 and 2016 presidential voting (plus the 2020 Senate race to compare where Biden over and unperformed Peters):

District: 2020-PRES, 2020-SEN (2016-PRES)
1: Biden+2.2; James+3.3 (Trump+5.3)
2: Trump+3.5; James+8.6 (Trump+9.0)
3: Trump+22.3; James+24.2 (Trump+24.1)
4: Biden+0.4; James+0.5 (Trump+2.0)
5: Trump+21.5; James+20.8 (Trump+24.6)
6: Biden+1.0; Peters+3.2 (Clinton+0.8)
7: Trump+26.3; James+24.5 (Trump+27.8)
8: Biden+1.1; James+1.0 (Trump+4.7)
9: Trump+0.1; Peters+1.5 (Trump+4.4)
10: Biden+2.4; Peters+1.1 (Clinton+0.5)
11: Biden+30.0; Peters+26.9 (Clinton+25.4)
12: Biden+15.9; Peters+16.9 (Clinton+11.9)
13: Biden+77.9; Peters+75.6 (Clinton+80.1)

Biden (D) won 8 districts in 2020; Trump (R) won 5.
James (R) won 7 districts in 2020; Peters (D) won 6.
Trump won 8 districts in 2020; Clinton (D) won 5.
And, surprising me, even Gretchen Whitmer (D) only won 8 districts in 2018. I'd have guessed she won 9 or perhaps even 10 (with 10 probably being a stretch).

You can see that generally, in Western MI, Biden did noticeably better than Gary Peters and Hillary Clinton, whereas in Eastern MI, there wasn't much of a difference. While Peters ran behind Biden throughout Western/Southwestern MI, in the eastern portion of the state, he tended to do better than Biden (in certain districts, at least - including the state's lone Peters/Trump district). And, of course, while Biden did much better than Clinton throughout suburban Southwest MI, in rural and urban MI, either Clinton did better than Biden, or Biden did only a little better than Clinton.

One novelty here IMO is MI08 and MI09. These are two seemingly very similar, purple districts in the Macomb/Oakland County area. However, interestingly, the 8th is a Biden-James district (Biden+1.1; James+1.0) while the 9th is the opposite - a Trump-Peters district (Trump+0.1; Peters+1.5)! I wonder why this is the case. (Of course, both the 8th and the 9th voted for Trump in 2016.)

The thing about Michigan is that several highly competitive districts are basically default (e.g. Lansing, Grand Rapids), others are not inevitable, but easy to draw (Flint-Saginaw and two districts in Macomb and Oakland). Some are a bit of a stretch (from Kalamazoo to its West, from Outer Wayne County to its South) and some seem artificial (pairing Ann Arbor with rurals). But the main challenge is to get them all on one map.

The following map is based on the new congressional map (which has its issues, of course) and doesn't rely on major district contortionism. The biggest change is in the area of the 5th and 6th. Apart from that it's mostly some tweaking around to get the districts fully competitive. And it's just a quick sketch.
https://davesredistricting.org/join/869ca613-10ce-4f8d-bda9-c1963b1331ac


Yeah, I agree with your point - you get a lot of naturally very competitive seats in MI just because of its geography, in a way you don't necessarily get in, say, WI, or MN, or even PA (despite the fact that PA has 6 more CDs more than MI).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Atlas Force on October 31, 2023, 02:33:16 PM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on November 01, 2023, 05:06:07 PM
Interesting to see if this succeeds.

I really do not like the way the Commission tried to "unpack" black voters - however a very good handful of said seats failed in 2022. The commission argues it's what their VRA lawyers told them to do, but there def seemed to be some level of underlying partisan incentives.

The thing is in MI, you don't even have to excessively "unpack" black voters to make a partisan equitable map so that argument is weak as well. A lot of the map just "unpacks" black voters into already D-leaning suburbs.

Really hope these issues are fixed.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Skill and Chance on November 01, 2023, 05:12:02 PM
Interesting to see if this succeeds.

I really do not like the way the Commission tried to "unpack" black voters - however a very good handful of said seats failed in 2022. The commission argues it's what their VRA lawyers told them to do, but there def seemed to be some level of underlying partisan incentives.

The thing is in MI, you don't even have to excessively "unpack" black voters to make a partisan equitable map so that argument is weak as well. A lot of the map just "unpacks" black voters into already D-leaning suburbs.

Really hope these issues are fixed.

Yes, I think to be consistent with the principles laid out in the AL, LA, and now GA section 2 cases, the MI state senate map has to go.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on November 01, 2023, 05:24:25 PM
Interesting to see if this succeeds.

I really do not like the way the Commission tried to "unpack" black voters - however a very good handful of said seats failed in 2022. The commission argues it's what their VRA lawyers told them to do, but there def seemed to be some level of underlying partisan incentives.

The thing is in MI, you don't even have to excessively "unpack" black voters to make a partisan equitable map so that argument is weak as well. A lot of the map just "unpacks" black voters into already D-leaning suburbs.

Really hope these issues are fixed.

Yes, I think to be consistent with the principles laid out in the AL, LA, and now GA section 2 cases, the MI state senate map has to go.

Yeah especially the when it comes to the Senate districts. The thing to remember with this case is it effects the inner Detroit region, and therefore has nothing to do with partisanship. All the adjacent areas are varying hues of Blue. It instead has everything to do with the Dem Primary, and I would not be surprised if the commission's VRA analyst just didn't do that side of the equation. Because from a D v R perspective, all the districts they drew should function. But things in some of the seats don't work from a D v D primary RPV perspective.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tekken_Guy on November 01, 2023, 05:43:23 PM
Yeah, for the most part the non-black areas of the cracked districts are still Democratic leaning so all the newly drawn districts should still lean Democratic, even if some of them won’t be safe anymore.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on November 01, 2023, 06:17:20 PM
Would the main partisan impact of this be taking the black majority areas out of SD-11 and SD-12?  I can't really see anything else on the map that would change in any meaningful way. 

They can make either SD-1 or SD-2 closer to black majority at the expense of the other, but that doesn't really change either away from Safe D (not even close really).


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Tekken_Guy on November 01, 2023, 06:26:19 PM
Would the main partisan impact of this be taking the black majority areas out of SD-11 and SD-12?  I can't really see anything else on the map that would change in any meaningful way. 

They can make either SD-1 or SD-2 closer to black majority at the expense of the other, but that doesn't really change either away from Safe D (not even close really).

No, the black areas are very small portions of SD-11 and SD-12. It’s likely they touch districts like 1, 2, 3, 6, 7, 8, 10 more, all of which have large black areas yet none are black majority.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on November 01, 2023, 06:37:06 PM
Would the main partisan impact of this be taking the black majority areas out of SD-11 and SD-12?  I can't really see anything else on the map that would change in any meaningful way. 

They can make either SD-1 or SD-2 closer to black majority at the expense of the other, but that doesn't really change either away from Safe D (not even close really).

No, the black areas are very small portions of SD-11 and SD-12. It’s likely they touch districts like 1, 2, 3, 6, 7, 8, 10 more, all of which have large black areas yet none are black majority.

I can't see any of the those districts in/around Detroit becoming competitive (even Likely D level) with any kind of changes. 

The most they could do is make a district in the southeastern part of Oakland County to make the remaining districts have larger black populations, but that new district would still have voted for Biden by around ~25%.

If they leave 11 and 12 alone, the overall partisan impact of striking down the map will be absolutely minimal.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on November 02, 2023, 03:22:36 PM
Interesting to see if this succeeds.

I really do not like the way the Commission tried to "unpack" black voters - however a very good handful of said seats failed in 2022. The commission argues it's what their VRA lawyers told them to do, but there def seemed to be some level of underlying partisan incentives.

The thing is in MI, you don't even have to excessively "unpack" black voters to make a partisan equitable map so that argument is weak as well. A lot of the map just "unpacks" black voters into already D-leaning suburbs.

Really hope these issues are fixed.

Yes, I think to be consistent with the principles laid out in the AL, LA, and now GA section 2 cases, the MI state senate map has to go.

Yeah especially the when it comes to the Senate districts. The thing to remember with this case is it effects the inner Detroit region, and therefore has nothing to do with partisanship. All the adjacent areas are varying hues of Blue. It instead has everything to do with the Dem Primary, and I would not be surprised if the commission's VRA analyst just didn't do that side of the equation. Because from a D v R perspective, all the districts they drew should function. But things in some of the seats don't work from a D v D primary RPV perspective.

I'm convinced the "VRA-lawyers" on the commission that had a heavy hand in the Detroit area had other motivations.

Overall I think the MI Commission was successful but having the same block of people doing all 3 maps lead to time crunches on the State House and State Senate maps leading to weird districts. Next time I would recommend there is just a separate slate of commissioners for each map that needs to be drawn.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on December 21, 2023, 05:46:05 PM


The inevitable outcome given primary outcomes.  Note, as stated here previously,  all districts listed are somewhere between Safe D and will remain reliability D after shifts given their geography. It's the primary demographics that matter.

The only part of this that doesn't make sense is the listing of the Inkster districts which are geographically separate from Detroit,  and not in a position to change without the Dearborn seats, that are not mentioned.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Nyvin on December 21, 2023, 06:00:21 PM
It'll be interesting to see how SD-11 is changed.  It seems they want that southern little chunk taken out of it to increase the black population in neighboring districts (probably 10?).  

It'll become more R no matter what (it's losing most of the black population), but by how much is the real question.   If they just expand it north it probably becomes borderline safe R, if it just swaps territory with 10 it might stay at around Lean R or so.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: ProgressiveModerate on December 21, 2023, 11:05:10 PM
It'll be interesting to see how SD-11 is changed.  It seems they want that southern little chunk taken out of it to increase the black population in neighboring districts (probably 10?).  

It'll become more R no matter what (it's losing most of the black population), but by how much is the real question.   If they just expand it north it probably becomes borderline safe R, if it just swaps territory with 10 it might stay at around Lean R or so.

SD-11 especially matters given how narrow Dems 20-18 majority is, and how many of the other State Senate seats they hold are quite narrow. Furthermore, Dems honestly don't have all that much room for growth in the State Senate, with SD-09 and SD-30 being the only two realistic pickups - maybe an outside chance at SD-32.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on January 04, 2024, 06:18:49 PM
Today the commission voted today 8 to 1 (2 abstain) to give their lawyers power to appeal, request stays, and generally try to fight against the suit.

Yesterday the two commissioners who resigned rather than potentially revisit their work were replaced with substitutes, 1 Dem 1 Rep.

Lower court has also solicited appeals to the plaintiffs and commission for a list of recommendations for a master and VRA experts to advise/guide the commission in corrective work.



In truth though, the commission doesn't have to do much work. On both plans they can just cut one of existing seats with large share of minority voters in Detroit, and that provides enough to bring every other seat well within the performance percentages. That cut seat is then reconstituted in the precincts dropped from the dropped precincts, almost entirely in inner Dem voting suburbs, meaning the initial partisan balance is not adjusted. As long as the commission stay by it's motives from last time, the changes similarly need not dramatically disrupt the partisan balance: some seats may get redder, but the dropping of Blue precincts from the innermost seats mean there is room to easily balance or maintain the existing partisan goals of the plans.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Atlas Force on January 08, 2024, 05:34:05 PM


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on January 22, 2024, 04:53:16 PM
Supreme Court denies the appeal, no noted dissents. There will be a adjusted House map for 2024, and senate map for 2026.

Again, given the area in question, and the commissions seeming commitment to its previous goals, massive changes to overall chamber partisanship should not be a issue. Instead, it will be the creation of 1-2 White Dem seats to make the rest in the region reliably majority AA, and actually allow Detroit to be represented by more than a handful of her residents.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on January 29, 2024, 07:26:19 PM


Commission activity on House maps. No images but here is the report from one of the advisory experts.  (https://drive.google.com/file/d/1y6mJZ3jlelMea5Vi16r7zf1cyI9Hjexj/view?pli=1)Notable charts:

()

()

()

Immediate takeaways:

Map Daisy 2 is the only one that this expert recommends which the commission adopted as a potential place to build off. Which seems like a very loaded decision. Especially since Daisy 2 seems tailor made to respect the commissions previous intentions by maintaining the overall partisanship of the seats. Additionally, a large number of districts all seemingly are bunched up on the chart at like 55% BVAP, a number likely given by a expect and then targeted with care. All the maps with absurd BVAP districts that would qualify as packing, or not much change and seeming to maintain the cracking based on percentages got chucked.

Meanwhile this part of this experts advice seemed to be ignored since he was pushing for more compact lines,  (https://pbs.twimg.com/media/GFDGJbgXUAEPme3?format=jpg&name=large)and noted Daisy 2  has continuity with the previous plan.


Title: Re: 2020 Census and Redistricting Thread: Michigan
Post by: Oryxslayer on February 01, 2024, 09:54:28 PM
10 maps are submitted to the website for public comment.  (https://michigan.mydistricting.com/legdistricting/michigan/comment_links) There are many maps up there, but these are the advanced ones:



Daisy 2 is very much the minimal change map which creating the necessary access seats. 

In fact, only it and Tulip seen to make an attempt to unpack Detroit into seats that are not going to run afoul of racial packing claims, but still are majority-minority and would satisfy the court order. Which to me suggests the commission already has their ideal design, they just have to put up more maps that are perhaps purposfully designed to fail.