Who's Stalinist now?

When Charlie Crist quit the Republican party (because he thought he couldn't win the primary), MSNBC reported that Republican "Stalinists" were chasing away moderates.

Let's see if we hear similar pronouncements about Democrats from those same analysts regarding this story:

A growing wave of discontent with government crashed down on "establishment" candidates running in primaries Tuesday as voters turned five-term Pennsylvania Sen. Arlen Specter out of office . . .

http://www.usatoday.com/news/politics/2010-05-18-primaries_N.htm