The conventional wisdom suggests every incumbent Senate Republican is all but certain to win re-election. But what if the conventional wisdom is wrong?

Pa., is leading his Republican challenger, David McCormick, by 9 percentage points among likely voters, according to a new poll by The Philadelphia Inquirer, The New York Times, and Siena College. Casey,

Pennsylvania Sen. Bob Casey (D) is leading his Republican rival Dave McCormick in new Keystone State polling. In a new poll from The Philadelphia Inquirer/The New York Times/Siena College, Casey garnered 49 percent support from the likely electorate in Pennsylvania compared to McCormick’s 40 percent.

A new poll of Pennsylvania shows Vice President Kamala Harris and former President Donald Trump remain locked in a close presidential race, while Dave McCormick is gaining ground against Bob Casey