
David McCormick, a Republican candidate for U.S. Senate in Pennsylvania, speaks during a campaign stop in Lititz, Friday, May 13, 2022. (AP Photo/Matt Rourke)

John Fetterman speaks to supporters at the Holy Hound Tap Room in downtown York, Pa., on Thursday, May. 12, 2022, while campaigning for U.S. Senate seat. (Mark Pynes/The Patriot-News via AP)

Lou Barletta speaks at a news conference where he accepted the endorsement of a rival in Pennsylvania's crowded Republican primary for governor, Jake Corman, right, May 12, 2022, in Harrisburg, Pa. Corman's endorsement comes as GOP leaders warn that leading Republican primary candidate Doug Mastriano is too far right to win in a general election. (AP Photo/Marc Levy)

A voter arrives to cast their mail-in ballot at the City-County Building in downtown Pittsburgh Monday, May 16, 2022. (AP Photo/Gene J. Puskar)

Kathy Barnette, a Republican candidate for U.S. Senate in Pennsylvania, takes part in a forum in Newtown, Pa., Wednesday, May 11, 2022. (AP Photo/Matt Rourke)

Cecelia Peterson, the majority inspector for the Cranberry West 5 voting precinct, left, and clerk Fred Peterson set up some of the folding voting booth dividers in one of the rooms in the Cranberry Township Municipal Center that will be used for voting in Tuesday's Pennsylvania Primary Election, Monday, May 16, 2022, in Cranberry Township, Butler County, Pa. (AP Photo/Keith Srakocic)

Catherine Toborowski, left, of Shenandoah Heights, and Sandi Gera of West Mahanoy Township, speak with state Sen. Doug Mastriano, R-District 33, a Republican gubernatorial candidate, and his wife Rebecca during a campaign stop at Alfredo's Brick Oven Pizza in Hazleton, Pa., on Friday, May 13, 2022.(John Haeger/Standard-Speaker via AP)

Mehmet Oz, a Republican candidate for U.S. Senate in Pennsylvania, poses for a photograph with an attendee during his visit to a car show in Carlisle, Pa., Saturday, May 14, 2022. (AP Photo/Matt Rourke)