They have identified over 450,000 ballots which only voted for Biden. Yes local is very important. In my area that is the primary. As most of the time local has only the Rep candidate. No Dems run here.
This post was edited by my2cents at November 9, 2020 8:12 AM MST
I've always voted on every ballot position. Voting is compulsory for me, so if there will ever be a run-off election for which I hate both of the candidates, then I'll turn in a blank ballot.