Counties in Pennsylvania are directed to not count illegal ballots, the state’s top court said in a ruling issued Monday.

In a statement urging adherence to the Pennsylvania Supreme Court decision, Shapiro said: "The rule of law matters in Pennsylvania."

Pennsylvania Gov. Josh Shapiro came out Monday and sided with the state's supreme court over a ruling about the counting of mail-in ballots.

The Keystone State's top court reaffirmed that certain mail-in ballots cannot be counted, in a blow to certain Democrat-led counties.

Pennsylvania’s state Supreme Court is weighing in on a flashpoint amid ongoing vote counting in the U.S. Senate election between Democratic Sen.

The Republican Party confirmed new lawsuits to Fox News, which they say are aimed at protecting GOP Sen.-elect Dave McCormick's victory over outgoing Democratic Sen. Bob Casey.

The ruling is a major victory for Republican Senate candidate David McCormick, who holds a very narrow lead over Democratic Sen. Bob Casey ahead of a statewide recount.

The Pennsylvania Supreme Court on Monday rebuked Democratic-controlled elections boards that counted undated and misdated mail ballots, siding with Republicans and reiterating that such votes are invalid.

Pennsylvania will recount the race between incumbent Democratic Sen. Bob Casey and Republican David McCormick, who leads by 28,000 votes.

David McCormick, who has been declared the winner of the race by the Associated Press, attended new member orientation just this past week.

Sen. Bob Casey is locked in a tight race with Dave McCormick in Pennsylvania. There will be an automatic recount of the votes, state officials say.

Republican Dave McCormick leads Democratic Sen. Bob Casey by about 28,000 votes, under the 0.5-percentage-point threshold for an automatic recount under state law.