I would say if mail in voting is allowed, that state will go for Biden.
Does Trump have a path to the White House ?
Something like 35 states allow ‘no excuse’ mail in or absentee ballots. These must be requested by the voter. The problem is with ‘all mail or universal mail’ ballots where the state gov floods the market with unrequested ballots. I think 9 states are now doing this. that’s where the issue really lies.
So what happens if governors in blue states close the polls at the end of October because of The Plague?