Republicans are not expecting problems with mail-in ballots, cast predominantly by supporters of Joe Biden, will do much to help Trump, believing predictions of massive vote rejections due to confusion and error are off base.

When Democrats across the country embraced mail-in voting to avoid the risk of contracting the coronavirus at polling places, Republicans, and even some Democrats, worried Biden could lose millions of votes due to incorrectly marked or late-arriving ballots. But after aggressive voter education and ballot-chasing programs deployed by the Biden campaign and the Democratic National Committee, Republicans now expect the number of ballots thrown out to be negligible in key battlegrounds such as Michigan, Minnesota, North Carolina, and Wisconsin.