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A Chester County election worker processes ballots for the Pennsylvania primary election at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

A Chester County election worker processes ballots for the Pennsylvania primary election at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

An Allegheny County elections worker opens and begins to process provisional ballots that were not challenged by campaign representatives, Monday, May 23, 2022, on the North Side neighborhood of Pittsburgh. (Alexandra Wimley/Pittsburgh Post-Gazette via AP)

An Allegheny County elections worker opens and begins to process provisional ballots that were not challenged by campaign representatives, Monday, May 23, 2022, on the North Side neighborhood of Pittsburgh. (Alexandra Wimley/Pittsburgh Post-Gazette via AP)

A Chester County election worker processes ballots for the Pennsylvania primary election at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

A Chester County election worker processes ballots for the Pennsylvania primary election at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)

An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)

Ballot envelopes for the Pennsylvania primary election are seen after being processed at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

Ballot envelopes for the Pennsylvania primary election are seen after being processed at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

Election worker Monica Ging processes ballots for the Pennsylvania primary election at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

Election worker Monica Ging processes ballots for the Pennsylvania primary election at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

Ballot envelopes for the Pennsylvania primary election are seen after being processed at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

Ballot envelopes for the Pennsylvania primary election are seen after being processed at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

Ballot envelopes for the Pennsylvania primary election are seen after being processed at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

Ballot envelopes for the Pennsylvania primary election are seen after being processed at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

FILE - Pennsylvania Republican Senate candidates David McCormick, left, and Mehmet Oz during campaign appearances in May 2022 in Pennsylvania. (AP Photo/File)

FILE - Pennsylvania Republican Senate candidates David McCormick, left, and Mehmet Oz during campaign appearances in May 2022 in Pennsylvania. (AP Photo/File)

Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)

Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)

Election worker Monica Ging processes a ballot for the Pennsylvania primary election at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

Election worker Monica Ging processes a ballot for the Pennsylvania primary election at the Chester County Voter Services office, Thursday, May 19, 2022, in West Chester, Pa. (AP Photo/Matt Slocum)

Allegheny County elections workers open and begin to process provisional ballots that were not challenged by campaign representatives, Monday, May 23, 2022, on the North Side neighborhood of Pittsburgh. (Alexandra Wimley

Allegheny County elections workers open and begin to process provisional ballots that were not challenged by campaign representatives, Monday, May 23, 2022, on the North Side neighborhood of Pittsburgh. (Alexandra Wimley

Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)

Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)

Allegheny County elections workers review provisional ballots with authorized representatives from Dave McCormick and Dr. Mehmet Oz's campaigns, Monday, May 23, 2022, on the North Side neighborhood of Pittsburgh, Pa. (Alexandra Wimley/Pittsburgh Post-Gazette via AP)

Allegheny County elections workers review provisional ballots with authorized representatives from Dave McCormick and Dr. Mehmet Oz's campaigns, Monday, May 23, 2022, on the North Side neighborhood of Pittsburgh, Pa. (Alexandra Wimley/Pittsburgh Post-Gazette via AP)