DETROIT (AP) — In an abrupt about-face, Michigan’s largest county on Tuesday night unanimously certified election results showing Democrat Joe Biden defeating President Donald Trump, hours after Republicans first blocked formal approval of voters’ intentions.

The initial move was quickly condemned by Democrats, election experts and spectators at the Wayne County Board of Canvassers online meeting as a dangerous attempt to block the results of a free and fair election.

“We depend on democratic norms, including that the losers graciously accept defeat. That seems to be breaking down,” said Joshua Douglas, a law professor at the University of Kentucky.

The state vote certification process is usually a routine task, and the ultimate resolution in Wayne County propels Biden toward formal victory in Michigan. Still, Tuesday’s chaotic developments are likely to sow more doubt among Trump’s supporters in the election results and could galvanize Republicans in other states to try to look for ways to slow down the final steps in making his loss official.

It is also likely to be a talking point at an online Town Hall on "election integrity" planned tonight at 6pm by Republican State Rep. Bollin of Brighton Township. At an online Coffee Hour Monday, Bollin said she has many questions about how the absentee voter process was handled at the TCF Center in Detroit. Bollin had also earlier accused Secretary of State Jocelyn Benson and Gov. Gretchen Whitmer, both Democrats, of “hijacking our elections under the cloak of democracy and transparency and using COVID-19 as an excuse.”

Republicans are also trying to stop formal certification of the election results in other swing states, including Arizona, Nevada and Pennsylvania.

Biden crushed Trump in Wayne County, a Democratic stronghold, by more than a 2-1 margin and won Michigan by 146,000 votes, according to unofficial results. His victory reversed Trump’s surprise 2016 gains in the industrial Midwest and put Biden on the path to clearing the 270 Electoral College votes needed to win the White House.

Still, Trump and his allies have launched an array of baseless attacks on the integrity of the election and numerous lawsuits aimed at slowing down the formal vote certification process. Each state certifies its election results and the Electoral College meets Dec. 14 to codify the results.

In Michigan, Trump allies and Republican poll challengers have spent days launching unsuccessful litigation. They claimed fraud during absentee ballot counting at a Detroit convention center, but two judges found no evidence and refused to stop the canvassing process.

It’s against that backdrop that the Wayne County Board of Canvassers met Tuesday. In a rare and extraordinary move, they did not bless the will of Detroit-area voters. Instead, the panel split in a 2-2 vote, with Republicans voting against certification of the results.

Monica Palmer, one of the two Republicans, said poll books in certain precincts in Detroit — a majority-Black city — were out of balance. Jonathan Kinloch, a Democrat on the panel, said the discrepancies were the result of “human error” and called it “reckless and irresponsible” to not certify the results.

There has been no evidence of widespread voting fraud in Michigan, or in any other state. Federal and state officials from both parties have declared the 2020 election safe and secure.

Still, Trump has spent the two weeks since Election Day raising false claims of voter fraud and refusing to concede to Biden. He relished the initial developments in Michigan, tweeting, “Having courage is a beautiful thing.”

But the broader condemnation was swift, including from the meeting’s online spectators, who blasted Palmer and fellow Republican William Hartmann during a public comment period over Zoom.

The Rev. Wendell Anthony, a well-known pastor and head of the Detroit branch of the NAACP, called their actions a “disgrace.”

“You have extracted a Black city out of a county and said the only ones that are at fault is the city of Detroit, where 80% of the people who reside here are African Americans. Shame on you!” Anthony said, his voice rising.

Ned Staebler, a vice president at Wayne State University in Detroit, said, “The stain of racism that you, William Hartmann and Monica Palmer, have just covered yourself in is going to follow you throughout history.”

Law student Joseph Zimmerman, a veteran, told the canvassers “it breaks my heart” to see them undermine the “sacred right” to vote.

After the meeting, Hartmann said the intense criticism didn’t cause him to change his vote. Rather, he said he acted because the board had agreed to ask the secretary of state to investigate Detroit’s election results.

Certification of the Nov. 3 election results in each of Michigan’s 83 counties is a step toward statewide certification by the Michigan Board of State Canvassers and the eventual awarding of 16 electoral votes.

“Glad to see common sense prevailed in the end,” Detroit Mayor Mike Duggan said after the Wayne County reversal. “Thank you to all those citizens who spoke up so passionately. You made the difference!”

Michigan Democratic Party chair Lavora Barnes called the initial 2-2 vote “blatant racism.”

At least six election-related lawsuits have been filed in Michigan, the latest one landing Sunday in federal court. The issues that Trump’s allies have raised are typical in every election: problems with signatures, secrecy envelopes and postal marks on mail-in ballots, as well as the potential for a small number of ballots miscast or lost.

On Tuesday, the Arizona Republican Party asked a judge to bar Maricopa County, the state’s most populous, from certifying until the court issues a decision about the party’s lawsuit seeking a new hand-count of a sampling of ballots. In a more rural county, Mohave, election certification was delayed until Nov. 23 in a sign of solidarity with the remaining election challenges in the state.

Trump’s personal lawyer, Rudy Giuliani, stepped into a courtroom for the first time in decades Tuesday to argue in Pennsylvania that the certification there should be delayed over concerns of voter fraud, though there was no widespread fraud reported.

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WHMI's Jon King contributed to this report.

Photo - In this Nov. 4, 2020 file photo, a Republican election challenger at right watches over election inspectors as they examine a ballot as votes are counted into the early morning hours at the central counting board in Detroit. (AP Photo/David Goldman, File)