MADISON, Wis. (AP/WCCO) — President Donald Trump and Joe Biden are locked Wednesday in a razor-thin race in Wisconsin. With Biden holding a slim lead, the president intends to seek a recount.

On Wednesday, vote-counting stretched into the predawn hours and the nation’s eyes turned to the same Midwestern battlegrounds that decided the election four years ago.

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With nearly all votes counted, Biden had a lead of sixth-tenths of a percentage point over Trump, a margin narrow enough to allow Trump to request a recount if it stands. CBS News nor the Associated Press have projected a winner.

The Trump campaign later confirmed that a recount will be requested.

“Despite ridiculous public polling used as a voter suppression tactic, Wisconsin has been a razor thin race as we always knew that it would be,” Trump 2020 campaign manager Bill Stepien said. “There have been reports of irregularities in several Wisconsin counties which raise serious doubts about the validity of the results. The President is well within the threshold to request a recount and we will immediately do so.”

More than 1.9 million people voted early, either by mail or in person, because of the coronavirus pandemic. That flood of ballots extended the counting past 4 a.m. Wednesday. Those ballots take longer than a regular ballot to process, and the counting could not begin until the polls opened Tuesday, delaying the reporting of results.

After totals were updated Wednesday morning, Biden expanded his lead to more than 20,000 votes out of nearly 3.2 million cast.

Trump led earlier in the night, fueled by in-person voting results, but the 169,000 outstanding ballots from Milwaukee and ballots from other cities broke heavily for Biden.

“When all votes are counted, we’re confident that Joe Biden will win Wisconsin,” tweeted Ben Winkler, chairman of the state Democratic Party.

Biden outperformed Hillary Clinton’s totals from 2016 in urban areas while Trump did better in small towns and rural areas than he did four years ago.

It was not the first time absentee ballots from Milwaukee could be a difference maker in a high-profile race. Absentee ballots in Milwaukee delivered the 2018 race for governor to Democrat Tony Evers over Walker late in the night that year.

Election officials count absentee ballots on November 04, 2020 in Milwaukee, Wisconsin. Wisconsin requires election officials to wait to begin counting absentee ballots until after polls open on election day. (credit: Scott Olson/Getty Images)

No matter who wins Wisconsin, the 10 electoral votes will not be enough to put either Biden or Trump over the 270 electoral votes needed to win.

Trump carried Wisconsin by fewer than 23,000 votes in 2016, and the race figured to be just as close this year. There are no automatic recounts in Wisconsin. Only a candidate who is within 1% of the winner can request a recount, which Trump could do in this case unless the narrow margin widened once all the votes were in.

Three of the past five presidential elections in Wisconsin were decided by less than a percentage point. Trump, in 2016, was the first Republican presidential candidate to win the state since 1984. Polls leading up to the election had shown Biden with a larger lead, just as they had for Clinton four years earlier.

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In 2000, Al Gore won Wisconsin by just 5,708 votes over George W. Bush, a difference of just 0.22%. Trump’s win in 2016 was 0.77% and was subject to a recount requested by the Green Party candidate Jill Stein.

In that recount, Clinton gained 713 votes, and Trump picked up 844, resulting in a net increase for Trump of 131 votes.

The Milwaukee absentee votes were among a record-high 1.9 million cast before Election Day. Then more than 1 million people voted in person Tuesday, despite surging coronavirus cases in Wisconsin that also drove the absentee voting. The total votes were expected to break the record high turnout of the 2012 election.

Wisconsin decided the 2016 presidential election and both campaigns made it a focus this year. Trump made four stops in Wisconsin in the final 10 days of the race, while Biden came once.

Overall turnout looked to be nearly 3.2 million, which would be the highest ever in Wisconsin. The previous high was slightly over 3 million in 2012.

(© Copyright 2020 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)

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