Sure, Biden has a more paths to 270, but Trump still has a very viable map where he gives back two states he won last time. Just flip PA, WI, or MI on this map and he's there.
View attachment 317163
Pretty easy to imagine a scenario in one of the three states where:
* he closes the gap between now and 11/3
* there is a difference in the spoil rate of mail in ballots, generally 2.5%, versus in person, generally 0.5%
* he turns out more rural voters than anticipated or wins them at a greater rate than anticipated
It's difficult but if he can hold FL, AZ, GA, NC, OH, IA--all places where he should be a heavy favorite--then he only needs one.