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,

Senator Bob Casey (D) and Republican challenger David McCormick have both agreed to debates in Philadelphia, Harrisburg and Pittsburgh, Casey's team said.

Before he ran for the U.S. Senate in Pennsylvania, David McCormick was a big name on Wall Street. He was the CEO of the world’s largest hedge fund, a world-traveled executive who was sought after for speaking engagements and prominent board positions.

GOP Senate candidate Dave McCormick met with Jewish voters in multiple Pennsylvania communities in a long day on the campaign trail — and blasted Democratic incumbent Sen. Bob

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.