I came across this story that has analyzed Senator Arlen "Two Time" Spector's (D/R/D-PA) vote record since reverting back to his Liberal roots.  The story highlights Spector's "party unity" as a Democrat.  The story does note that the numbers aren't overly significant, but there is still a fatal flaw.  The assumption is that Spector was a Republican while riding the GOP coattails.  Spector was NEVER a Republican.  Spector was just a political coward using the GOP as the vehicle to incumbent city...Washington, DC.  I await the day he is destroyed in the DFL primary.