@freemo I'm ignorant about the US in all possible ways, but isn't this one of the many reasons why your map is so red? https://www.theguardian.com/us-news/ng-interactive/2021/nov/12/gerrymander-redistricting-map-republicans-democrats-visual
@freemo do I understand correctly that your map is an aggregate of gerrymandered congressional districts (and the winner-takes-it-all aggregate of many red districts is red itself)?
@mapto no these arent congressional districts, so gerrymandering doesnt effect this map. It is based off the popular lean in counties.
@mapto No thats unrelated but it is a very real problem. You arent seeing congressional districts here so the effect described in that link is unrelated.