Election workers in Philadelphia count ballots on Tuesday. Pennsylvania is among several swing states that have yet to be called.

PHILADELPHIA,PA – NOVEMBER 03: Election workers count ballots on November 03, 2020 in Philadelphia, Pennsylvania. After a record-breaking early voting turnout, Americans headed to the polls today on the last day to cast their vote for incumbent U.S. President Donald Trump or Democratic nominee Joe Biden in the 2020 presidential election. (Photo by Spencer Platt/Getty Images)