As a liberal, I can’t possibly not enjoy the prospect of Pennsylvania Sen. Arlen Specter’s joining the Democratic Party and making it easier for President Obama to enact his agenda.
In the long run, though, it’s not good for the country to have one party that’s straight-down-the-line conservative and another that is entirely liberal. A mostly liberal Democratic Party and a mostly conservative Republican Party? Sure. But hard-edged ideological differences are one of the main reasons that politics today is so unrelievedly vicious.
Looks like the last holdouts are Maine’s Republican senators, Olympia Snowe and Susan Collins.