Casey and McCormick square off in Pennsylvania race that could determine Senate control

FILE - David McCormick, the Republican nominee for U.S. Senate in Pennsylvania, pauses during a speech at a campaign event at the Beerded Goat Brewing Co. in Harrisburg, Pa., April 25, 2024. (AP Photo/Marc Levy, File)

HARRISBURG, Pa. (AP) — Pennsylvania’s U.S. Senate race between three-term Democratic Sen. Bob Casey and Republican challenger David McCormick could help Republicans pad their newfound majority in the chamber in a battleground state contest that is one of the nation’s most expensive this year.

McCormick led vote counting early Wednesday morning by about 100,000 votes, or 2%, but a significant number of votes remained uncounted.

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