New York Times map of donor concentration.

[wysimdnwyg]

2. I think Sanders and Biden's nationwide support is no surprise

Given both had substantial mailing lists from which to work going into the race. Warren's national support is impressive, as is that of Buttigieg. It's not at all surprising that some of the candidates have a stranglehold on their own states. Nor is it surprising that Harris does NOT have a significant stranglehold on California, given the nature of that state and its donors (many of whom are quite wealthy, and are making sizable contributions to their candidate of choice).

I do think it's interesting, but the only parts that are the least bit surprising to me are the spread of support for Warren and Buttigieg.



Also, I know that wasn't your intent (or likely that of the authors), but I can't help when I look at these but to think about the trope maps that Republicans have put out for years showing the overwhelming red of the country when they show red/blue by majority vote in counties. Of course, that doesn't take into consideration the number of people in each county, so 10 counties with 100 people each who vote 51% Republican appear to count for more than one county with 1M people that votes 80% Democratic.