Four key battleground states — Pennsylvania, Wisconsin, Michigan and Georgia — began Wednesday with tens of thousands of absentee ballots uncounted, leaving the White House race between <a href=”https://www.cnn.com/election/2020/candidate/trump” target=”_blank”>President Donald Trump</a> and former <a href=”https://www.cnn.com/election/2020/candidate/biden” target=”_blank”>Vice President Joe Biden</a> up in the air.

Election officials in some states called