NYT: Very Detailed Map of 2020 Election (Incomplete)

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You can see the effects of 2016 third-party voters swinging to Biden in urban precincts in cities like Portland and Seattle (and to a lesser extent Chicago and NYC).

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One of the more interesting precinct results is this precinct in Evanston that "swung Republican" despite Donald Trump getting zero votes-



This is true mathematically as it went from 89% Democratic to 2.9% Republican in 2016 to 85.7% Democratic to 0% Republican in 2020. However, the explanation behind this is that there were only 14 voters at this precinct this year. The breakdown was 12 Biden voters, 1 Jorgensen voter, and 1 Hawkins voter (interestingly an increased third-party vote share from 2016 as well) - compared to over a hundred in 2016. This precinct includes part of Northwestern University, so it is possible that students not being on campus contributed to this big drop. Either way, it is still an interesting result and shows how sparsely populated precincts can create electorally strange results.

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- trump doing better in scant few and random moneyed white areas; north queens(not sure what this ones about), west hollywood, beverly hills

This is bizarre to me. Wealthy communities in Chicago, New York, Washington, had little to no movement either way, while similar communities in LA had strong Republican swings. Why?

Eyeballing it, Trump actually did improve mildly in a few wealthy precincts in the Near North Side/Loop areas. Of course, the overall trend was pretty small.