As a result, while many Americans are accustomed to voting on Election Day and learning results that night, Election Day 2020 in fact marks the end of a lengthy voting period and the start of a potentially lengthy counting period. In some states, ballots cast in person on Election Day will be reported first, and they could favor Trump, since polls show a majority of his supporters plan to cast ballots on Election Day. The state expects it will report results on election night reflecting more than 95 percent of votes cast in the election. Ohio plans to release preliminary results on election night that combine Election Day in-person, early in-person and mail votes returned by close of polls. ADPennsylvania: Mail ballots cannot be counted until Election Day, despite local election officials pleading with the legislature to give them more time.
Source: Washington Post October 26, 2020 11:53 UTC