It is true that being a Republican moderate sometimes feels like being a cast member of “Survivor” — you are presented with multiple challenges, and you often get the distinct feeling that you’re no longer welcome in the tribe. But it is truly a dangerous signal that a Republican senator of nearly three decades no longer felt able to remain in the party.Do read the entire article above. It's well worth it.
"Senator Specter indicated that his decision was based on the political situation in Pennsylvania, where he faced a tough primary battle. In my view, the political environment that has made it inhospitable for a moderate Republican in Pennsylvania is a microcosm of a deeper, more pervasive problem that places our party in jeopardy nationwide.