When will the states that could tip the U.S. election be done counting?

To capture the White House, a candidate must amass at least 270 votes in the Electoral College. Edison Research gave Biden a 253-214 lead over the incumbent.

Here is the state of play in the five states. The vote counts are supplied by Edison Research.

PENNSYLVANIA (20 electoral votes)

Biden has a lead of 28,833 votes, or a 0.5 percentage point margin, as of 10:45 p.m. ET (0345 GMT), with 96% of the estimated vote counted. Under Pennsylvania law, a recount is automatic if the margin of victory is less than or equal to 0.5 percentage point of the total vote.

There are still ballots to be counted in Philadelphia, the state's largest city, and Allegheny county, home to Pittsburgh, which started to report votes on Friday evening.

The majority of ballots left in Philadelphia are provisional and military ballots, Pennsylvania's election commissioner said, adding the final count could take several days.

Friday is the last day that Pennsylvania can accept mail-in ballots postmarked on or before Election Day. The U.S. Supreme Court ordered election officials in the state to separate out ballots received after Tuesday, which are the subject of a lawsuit in which Republicans contend they should not be counted.

GEORGIA (16 electoral votes)

Biden leads Trump by 4,395 votes as of 10:20 p.m. ET (0320 GMT), with 99% of the estimated vote counted. Trump needs both Pennsylvania and Georgia to win a second term.

Brad Raffensperger, Georgia's secretary of state, said he expects the margin to be just a few thousand votes, which will likely trigger a recount. A recount must wait until Georgia's results are certified, expected on or before Nov. 20.

About 9,000 military and overseas ballots are still outstanding and could be accepted if they arrive on Friday as long as they were postmarked Tuesday or earlier.

ARIZONA (11 electoral votes)

Biden has 49.6% versus Trump at 48.7%, a lead of 29,861 votes, with 97% of the expected vote tallied as of 10:20 p.m. (0320 GMT).

The state had about 173,000 ballots left to count at around 9:15 p.m. ET, Arizona Secretary of State Katie Hobbs told CNN. That included 92,000 ballots in Maricopa County, where Biden has held a narrow lead. And it included more than 40,000 provisional ballots that she said might not be counted until Wednesday.

NEVADA (6 electoral votes)

Biden leads Trump by 22,657 votes, or 1.8 percentage points, with about 93% of the vote counted as of 10:30 p.m. ET (0330 GMT).

More votes are expected out of Clark county, which includes Las Vegas. The majority of mail-in ballots are expected to be counted by Sunday, according to local officials.

NORTH CAROLINA (15 electoral votes)

Trump leads by 76,515 votes, or 1.6 percentage points, with about 98% of the estimated vote counted.