He's announced that he will soon announce.
Sen. Joe Lieberman (I-CT), who lost his Democratic primary in 2006 but has remained a (sometimes shaky) member of the Democratic caucus, will announce tomorrow whether he is running again in 2012.
Everything I'm hearing from my Connecticut sources is that he's going to retire, though none of those sources have direct access to Lieberman, so take with a ginormous grain of salt.
Lieberman is among the least popular senators, and his reelection chances are nil. The only question was whether his huge ego would prompt him toward another run, attempting to prove his critics, tormentors, and detractors wrong.
The smart move is for him to retire, as much as it would piss me off if he did. I want the voters to render their verdict on him. But regardless what he chooses, fact is that America and Connecticut will soon be rid of this useless sack of crap.
Once out of the Senate, he can nestle comfortably in the Fox News green room, with his real friends and family all around him. And a real Democrat will finally fill that Senate seat.