Pennsylvania: The state will be one of the slowest to release results from mail-in ballots because officials can’t start processing absentee ballots—taking steps like removing ballots from envelopes and verifying voter signatures—until the morning of Election Day, and cannot record any vote totals until after polls close at 8 p.m.

With Election Day days away, Harris and Trump are making their final appeals to voters in what could be a historically close race.

For Vice President Kamala Harris to win the White House she would need to attain the "blue wall" trifecta states Pennsylvania, Michigan and Wisconsin.