Battleground state's high court rejects GOP challenge to provisional ballot rules

The decision comes as the RNC has filed nearly 100 election-related lawsuits, many of which are focused on key swing states.

Many of them have been filed in swing states considered pivotal for either candidate to win the presidency. Breanne Deppisch is a politics reporter for Fox News Digital covering the 2024 election and other national news.

In Pennsylvania, the RNC had appealed a lower court decision that allowed voters who mistakenly sent their mail-in ballots without an inner "secrecy" envelope to cast in-person provisional ballots at their local polling location.

The Pennsylvania Supreme Court upheld that decision in a 4-3 vote, siding with a lower court that had ruled that a local election board in Butler County had been wrong this year when they disqualified provisional ballots cast by several residents in the 2024 primary election.