Cross-posted at ProgressiveHistorians and BooMan Tribune.
BooMan sez:
You'd think I'd be more interested in the campaign of Joe Sestak to defeat Arlen Specter and win the Democratic nomination for one of Pennsylvania's two senate seats. Unfortunately, I haven't been able to muster a whole lot of enthusiasm for the race. ... I might be geared up for such a battle [with the establishment], if only I thought of Joe Sestak as a sincere progressive. But, I don't. I can almost assure progressives that if he wins a stunning upset and becomes the next senator from Pennsylvania, we'll wind up preferring Bob Casey on every issue that isn't related to reproductive rights and stem-cell research.
I quote BooMan not because I disagree with his analysis of the Sestak-Specter contest -- I don't -- but because I think he misapprehends the reason it's so important for the Left to back Sestak strongly in this race.