McCormick enters Pennsylvania Senate race, setting up closely-watched battle with incumbent Casey

David McCormick announced his candidacy for the U.S. Senate in Pennsylvania, challenging incumbent Democrat Bob Casey.
McCormick quickly gained Republican party support as the most electable candidate after divisive primaries in 2022.
McCormick's business background is expected to help withstand attacks from Casey's campaign.
The race between McCormick and Casey is predicted to be expensive and crucial for both parties.
McCormick's entrance sets up a competitive 2024 Senate race in the key swing state of Pennsylvania.