"It drove the last of the Republican moderates into the Democratic column," Rendell said. "It turned off the independent voters and ... literally you have five Hillary Clinton voters in the state of Pennsylvania who voted for the Republican ticket."
An exit poll by The Associated Press found that McCain was only able to win over about 1 in 5 Democrats who voted for Clinton in Pennsylvania’s April primary, which she won.
McCain would have been better off selecting former Massachusetts Gov. Mitt Romney or former Pennsylvania Gov. Tom Ridge, Rendell said.