Joe Lieberman makes his retirement official:

Referring to Mr. Lieberman’s plan to forgo re-election, Bill Curry, a prominent Democrat who served with Mr. Lieberman in the State Senate, said, “It’s the first thing he’s done in 10 years to make Connecticut Democrats completely happy.”

I don’t really have much to add to this, except for the fact that Ezra Klein has clearly been assimilated by the Beltway Borg^™, and has become yet another thought free spewer of conventional DC wisdom, since he is wondering if Joe Lieberman is some sort of Democratic Hero:

That [Obama’s disgraceful lobbying on behalf of Lieberman to keep his seat and seniority] kept Lieberman in the fold, and after Arlen Specter switched parties and Al Franken won his election, gave Democrats the 60 votes they needed to break a Republican filibuster against health-care reform. Lieberman’s behavior during the debate was often erratic and seemingly unprincipled. Among other things, he skipped the meetings where Democrats were trying to work out a compromise on the public option, and then he killed the Medicare buy-in proposal they’d developed — despite endorsing that exact proposal months before. In doing so, he doomed a great piece of policy, and by doing it at the last minute, endangered the rest of the bill, too. But the reality is that the legislation simply wouldn’t have passed without his vote. And after extracting his pound of flesh, he voted “aye.”

This ignores the fact that the Democrats really had 60 votes for only a few weeks, because Ted Kennedy was busy dying, and the displays of narcissism, petulance, self importance, and wounded pride that made Lieberman determined to inflict as much damage as possible while keeping his committee chairmanship.

If Lieberman could have found a way to vote “No”, and keep his position, he would have, because he was all about petty vengeance.