Nice piece by Markos who explains/analyzes Specter's party switch and what it means for the collapsing GOP:
So check it -- there is only one region the GOP dominates, and it does so with a solid majority. That's the South, and there's a reason it remains the only region in the country to have a problem with our president and the Democratic majority:
Specter is center-right, and he's made clear that the GOP is no longer hospitable to him. Sure, his party switching is rank opportunism at its worst, but he was forced to do it because his party moved far to the Right. There's a reason that 200,000 moderate Republicans in Pennsylvania switched to the Democratic Party last year. Arlen has been left chasing those 200,000 voters, which are essentially his base. The Toomey crowd, the ascendent reactionary wing of the GOP, isn't going for "center-right". Their brand of conservatism is of the "far-right" variety, grossly out of step with the American (and Pennsylvania) mainstream.
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