"...worthy of his own thread? "
Run of the mill leftist, on a par with Dick Durbin, Pelosi, Reid and Wasserman-Schultz. Foes anybody see any more in him than that?
More important (sadly) might be Claire McCaskill, the 8th most centrist Dem in a 52-48 Senate, and other red-state Dem Senators, especially those up for reelection.