The college voted in state capitols across the country on Monday to install Biden, as President Donald Trump continued to contest the election result.
Biden is set to garner 306 votes while Trump will get 232. States have all certified their results from the November 3 election.
The electoral college system distributes 538 votes to states based on population size. The winner of the presidential election is the candidate to get more than 270 electoral votes.
While most states have laws binding electors to the popular vote outcome in their territories, some do not, potentially creating room for drama if officials decide to go rogue.
In modern history this has not been an issue.
In the morning votes on the east coast and in the south there were no unexpected events. Even in Georgia, the scene of a hotly contested election battle, all 16 votes went to Biden.
Trump is pushing a false narrative that the elections were rigged against him.
His legal team has lost dozens of cases in the courts and one case brought by his allies was rejected at the Supreme Court level.
The next step will be in Congress on January 6, with certification of the Electoral College vote.
Biden and vice president Kamala Harris are due to be sworn in on January 20.
So far, Trump has not offered to meet Biden but his administration has begun to work with the president-elect’s transition team.
It came as Attorney-General William Barr, one of Trump’s staunchest allies, resigned amid tension with the president over his baseless claims of election fraud and the investigation into president-elect Joe Biden’s son.
Barr went to the White House on Monday, where Trump said he submitted his letter of resignation.
“As per letter, Bill will be leaving just before Christmas to spend the holidays with his family,” Trump tweeted.
Trump has publicly expressed his anger about Barr’s statement earlier this month that the Justice Department had found no widespread election fraud that would change the outcome of the election.
Trump has also been angry the Justice Department did not publicly announce it was investigating Hunter Biden ahead of the election, despite department policy against such a pronouncement.
Trump said Deputy Attorney-General Jeff Rosen, whom he labeled “an outstanding person,” will become acting attorney-general.
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