The recount determined that Oz had eked out victory over McCormick by 951 votes out of more than 1.3 million cast in the May 17 primary
John Fetterman, the Democratic nominee for U.S. Senate in Pennsylvania who is recovering from a stroke, as cardiomyopathy, his doctor said.
The ballots in question are roughly 880 mail-in ballots that lack a handwritten date on the envelope.
Lawyers for the two learning candidates sparred over whether mail-in ballots with missing or incorrect handwritten dates should be factored into a razor-thin race.
At least seven counties — Bedford, Clinton, Crawford, Lehigh, Montour, Tioga and Warren — said they will begin Friday.
A separate court battle could go to the U.S. Supreme Court, with the candidates separated by fewer than 1,000 votes.
David McCormick’s lawsuit was filed less than 24 hours before Tuesday’s deadline for counties to report their unofficial results to the state.
