First Read suggests it won't happen:

ERIE, PA -- It looks like a McCain-Ridge ticket may no longer be a possibility.

After visiting a GE locomotive plant here today with Tom Ridge, the state's former governor, McCain took questions from some of the plant's employees -- one of which was about what his plans were for his first 90 days in office.

"To call Tom Ridge to Washington from whatever vacation he is taking and get him down there and get him to work," McCain joked, subtly suggesting that Ridge wouldn't be his running mate in November.

Of course the biggest problem with Tom Ridge is that he's pro-choice. There have been rumors that McCain would ignore that because he likes Ridge personally. But if ever there was a way to keep the Evangelical base home in November, it would be to put a pro-choice candidate up as VP.