What Trump "did" in 2016 was just amazing, if that word makes any sense. He won a) all swing states and b) won states that had a long-ish history of being won by the Democrats.
Regarding b) this is Michigan, Pennsylvania and Wisconsin, totalling up to 46 electoral votes (remember the electoral votes: Trump 304 - 227 Clinton). These 46 ev he won with a combined margin of 1.72%: Michigan 0.23%, Pennsylvania 0.72%, Wisconsin 0.77%. These three states were democratic territory for a long period of time, but in 2016 were republican:
Democrats won Michigan from 1992-2012.
Democrats won Pennsylvania from 1992-2012.
Democrats won Wisconsin from 1992-2012.
There was no state that was suddenly won by the Democrats with having a republican history.
Yes, Clinton won the popular vote in 2016 as well and Biden is 1.60-ish for winning it this year, while Trump is 3.00+.
I found this one today:
Source: https://www.betonline.ag/sportsbook/futures-and-props/politics-props
They do accept crypto, if you want to take your chances But KYC is needed imo.