John Cole gets it about right:

To recap, Specter, who voted with the Republicans 70% of the time, was essentially pushed out of the party for his stimulus vote. They will then run the reactionary lunatic Pat Toomey, who can never win the general election. Deciding that doesn’t make sense after seeing polling data suggesting Ridge will be more competitive, the idea of Ridge running is floated. Small problem. Ridge isn’t an anti-abortion fanatic, which means that he is also a dread RINO. This will be fun to watch.

A-yep.