(And there ya go, Republicans, for going to the whacko fringe right.)
Update: Okay, just for something a little more sobering:
My change in party affiliation does not mean that I will be a party-line voter any more for the Democrats that I have been for the Republicans. Unlike Senator Jeffords’ switch which changed party control, I will not be an automatic 60th vote for cloture. For example, my position on Employees Free Choice (Card Check) will not change.I don't care if he becomes the super-duper liberal I'd every Senator to be, but EFCA is one of the most important bills that can possibly pass. It needs to. If Specter won't sign it, he'll face a Democratic primary challenge.
In any event, though, this is a good day for national democratic politics.