HARRISBURG, Pa. (AP) — When Philadelphia’s election board prepared to count ballots last year that were mailed in without the voter’s handwritten date, Republicans threatened impeachment. Before GOP Senate candidate David McCormick conceded his race Friday, he wanted counties to embrace the same approach.

In a last-ditch bid to close a roughly 900-vote gap with Dr. Mehmet Oz, former hedge fund CEO David McCormick pressed for undated mail-in ballots to be counted. He finally acknowledged Friday that there were not enough ballots remaining to make up the difference.

McCormick had insisted he simply wanted every Republican vote to be counted in a contest that will decide the GOP nominee for one of this year’s most closely watched Senate races. But in calling for undated mail-in ballots to be counted, McCormick put the GOP in an uncomfortable spot after the party spent the better part of two years deriding such votes as “illegal” alongside a broader embrace of former President Donald Trump’s lies about widespread fraud in the 2020 campaign.

“Now it looks like we could be OK for something if it impacts the race in a way you want it to go,” said Mike Barley, a Republican campaign strategist in Pennsylvania who does not have a candidate in the Senate race.

The national and state party fought McCormick in state courts, and the U.S. Supreme Court could resolve the matter any day now. In any case, most Republicans believed McCormick would be unable to make up the votes in a recount, regardless of whether undated ballots were counted.

More registered Democrats vote by mail in Pennsylvania than do registered Republicans, possibly as a result of Trump’s baseless smearing of mail-in voting as rife with fraud.

Until now, Republican Party leaders had been solidly unified behind the idea that ballots without a voter’s handwritten date on the envelope must be thrown out.

The law, they reasoned, is clear on that point — even if that handwritten date on a ballot envelope plays no role in determining whether a voter is eligible or whether a ballot is cast on time.

Then, three days after the May 17 primary election, a federal appeals court ruled in a case stemming from a local judicial election last year that throwing out such ballots violates federal civil rights law.

As he tried to find the votes to overtake the Trump-endorsed Oz, McCormick argued that “every Republican vote should count,” and, in court, his lawyer, Charles Cooper, told a state judge that the object of Pennsylvania’s election law is to let people vote, “not to play games of gotcha with them.”

McCormick’s pursuit served up a sort of whiplash for Republicans, who had threatened to impeach Philadelphia election officials last year after they moved to count such ballots and accused state judges of stealing a state Senate seat in 2020 when they ruled that the ballots could be counted in that year’s election.

This time around, however, Republicans didn’t blast judges or threaten to impeach the county election boards counting the ballots.

“Not at this point, because it’s still in litigation,” said Republican state Rep. Seth Grove, who chairs the committee that writes election-related legislation.

In court, the Republican National Committee and the state Republican Party opposed McCormick. The party, however, was not unified in that effort.

For instance, the Butler County Republican Party, which endorsed McCormick, didn’t take a side in the fight, said county GOP chair Al Lindsay.

Counties that already counted the undated ballots, without being forced, included Republican counties, both big and small.

Sam DeMarco, the Republican Party chair in heavily populated Allegheny County, said he’s not aware that Republicans have actually changed their mind about the law.

Rather, he has heard griping from Republicans about McCormick “because they think this is what the Democrats would do.”

In any case, it is probably better to get the fight out of the way in a Republican primary, rather than leave it for the general election, he said.

“I just want to get a definitive ruling and, personally I’m happy it’s happening now, in a primary, rather than in November, where the actual seat would be up for grabs,” DeMarco said.

McCormick’s concession sets up a November general election between Oz and Democratic Lt. Gov. John Fetterman, who said Friday that he nearly died in the days before his primary after suffering a stroke.

Despite McCormick’s concession to Oz, The Associated Press has not declared a winner in the race because an automatic recount is underway. The Pennsylvania secretary of state is scheduled to release the results of the recount on Wednesday.

Barley, the campaign strategist, said the perception that the party had shifted its stance — or that some Republicans had, anyway — sets a dangerous precedent.

“What happens in November if it doesn’t go your way and then you don’t want them counted?” he asked.

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Follow Marc Levy on Twitter at twitter.com/timelywriter.

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