Arlen Specter Specter leaves Republican Party

Arlen Specter just made the switch from the Republican Party to the Democratic Party. How does this read? The Republican Party has gone so far outside of the mainstream that their fogeys are starting to abandon ship? Or the Democrats, by virtue of the two party system and the Republican Party's insanity, is forced to cast such a wide net that it will never actually manage to come up with any sort of real political philosophy?

Also does this mean Specter will change his mind on the Employee Free Choice Act? Or will he still oppose it and use EFCA to demonstrate his continued independence from party politics?

Arlen Specter is really really old.

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