Most deceptive gerrymander?

[jimrtex]

No. In all 50 states, both sides already have draft maps. You can buy estimate data to the block-level and state parties do. Of course the official map has to wait for official numbers, but drafts give a good idea of the direction that a party should pursue.

What are the estimates based on?  ACS PUMS?

The 5-year ACS to the block group level will be released this December.

[jimrtex]

There's also Idaho. Yes, Idaho. You may wonder how you can gerrymander a super-Republican state with only two districts, but they basically did this by splitting Boise right down the middle, clearly to prevent the possibility of any strong Boise-based Democrat taking a seat on their own merits. Succeeded in that sense but failed in preventing district 1 Republicans from nominating Bill Sali. However it does make me wonder if all of Boise will be removed from ID-01 in redistricting. This will put pretty much all the areas with a notable number of Democrats in Idaho in one district, but also plenty of Mormons and probably enough to cancel them out.

It is pretty hard to keep Boise in a single district unless you want to have a district that includes Eastern Idaho and the panhandle.