Wow it was closer than we thought
From wapo
here are the margins by which Biden won three critical states, as of Wednesday morning:
Arizona: 10,457
Georgia: 14,028
Wisconsin: 20,565
Total: 45,050
But if Trump had managed to get those 45,000 votes, he would have won 37 more electoral votes, making the electoral college a 269-to-269 tie. Under the Constitution, the election would have then been decided by the House of Representatives, with each state delegation getting just one vote. Even though Democrats have a majority in the House, more state delegations have Republican majorities. Trump would have been reelected.