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.

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

Pennsylvania's high court ordered state county election officials on Monday to not count "invalid" mail-in ballots in the U.S. Senate race between Democratic Sen. Bob Casey and his Republican challenger,

In a win for Republican Senator-elect Dave McCormick, the Pennsylvania Supreme Court affirmed in a ruling on Monday that counties cannot count mail-in and absentee ballots that have missing or incorrect dates or signatures,

The Pennsylvania Supreme Court on Monday ordered all 67 counties to comply with the commonwealth's existing Election Code and not include in tabulations, including the U.S. Senate recount, any mail-in ballots cast with dating errors on the outer return envelope.

Pennsylvania Gov. Josh Shapiro has agreed with the state’s Supreme Court that ruled certain mail-in ballots shouldn’t be counted. Shapiro,

Bucks County has been at the center of controversy since a commissioner said she willingly decided to ignore a court directive to disqualify certain ballots.

A recount in Pennsylvania's U.S. Senate race between Bob Casey and Dave McCormick begins Wednesday. Sen. Rick Scott detailed a number of areas in which Republicans overwhelmingly want change ahead of the new Congress.