This actually is a more fun excerise than appears on face value. I go with time brackets and slowly eliminate states until one remains.
2000-present: Tie between HI, CA, OR, WA, MN, IL, MD, DE, NJ, NY, CT, RI, MA, VT, ME, which all score 6/6.
2020: Biden
2016: Clinton
2012: Obama
2008: Obama
2004: Kerry
2000: Gore
1980-present: Since don't know doesn't count and Anderson and Perot doesn't win states, I can go with any and all Bush 1988 - Clinon 1996 states. Since these are only 2 elections and 2000-2020 is six, it's basically now a tie between all the Bush 1988 states that have voted only blue from 1996 onwards - eliminating OR, WA, HI, MN, NY, RI and MA, and leaving me with: CA, IL, MD, DE, NJ, CT, VT and ME.
1996: Clinton
1992: Perot (I didn't even really agree with him on a lot of stuff I just wanted to vote for an Independent who could win a state or two)
1988: Bush (I might've said Dukakis in other places, but going with Bush right now)
1984: Don't know
1980: Anderson
1968-present: All the states left are Nixon 1972 states, of course. I now must eliminate from the remaining states any Humphrey or Wallace (there were no Wallace states on the list to begin with, actually) states, striking down MD, CT and ME and leaving: CA, IL, DE, NJ and VT.
1976: Don't know
1972: Nixon
1968: Nixon, probably
Let's bounce through now. 1964 I'd be a Johnson voter - a moot point since all these states were Johnson states. 1960 I'd be a Nixon voter - this eliminates the Kennedy states from the list (IL, DE and NJ) and leaves behind just two - VT and my home state. Now they duke it out and the first state going further back that voted differently from me loses, with the other state winning and earning the title of 'Most CentristRepublican state presidentially. I was going to be dramatic, but I remember VT was straight Republican from founding to 1964, so...
1952 and 1956: CA is a red state. I would also be red. Both states make it.
1948: I'd be a Truman voter. Thus VT loses...unless CA was also a Dewey state, in which case it's a two-way tie between them. I am now going to the Wikipedia page for the 1948 presidential election and (drumroll please) am going to definitively determine the winner...
...And it's CA, my home state. I have either been undecided or would vote the same way as CA for a streak longer than any other state - in fact, we'd last diverge in either 1924 (when I'd either support Coolidge, CA's winner, or LaFollete, the Progressive) or 1920 (when CA voted overwhelmingly for Harding but I'd support the internationalist Cox).
Here's to my home state voting the same way as me for the past century of presidential elections!
I think most partisan Democrats and strong left-wingers are going to pick Minnesota.
...And Republicans would get to choose from an array of states that were for Johnson but have never gone blue since, including ND, SD, NE, KS, OK, UT, ID, WY, UT and I think that's all of them.
