From TPM Reader AR ...

There's just no chance he wins the general now. On top of unions, which are really the only way to win in Philly (although even here they're losing their cachet a little bit), the reality is the people in PA broadly speaking like Obama a lot. And as someone who would have actually probably would have voted for Specter--it would have been with my eyes closed, but I still give him credit for at least nominally standing up to Bush when it came to judicial appointments--I now see him as someone who made the stimulus package worse, won't let EFCA come to a vote, and generally is the worst kind of moderate (that is, not someone who is liberal on some issues and conservative on others, but someone who pretends to be a moderate on every single issue). I think it's obvious that he can't win the primary (not only is he too liberal, but people who are still registered as republicans in PA are a special kind of hard core), and even if he did, I just don't know anybody around here that would prefer the 60th vote in the senate to be an unpredictable attention whore. I guess I've just had it with Specter.