Will Lieberman ever learn?

I'm not sure how many posts I've written about instances where Connecticut's Joe Lieberman makes a media appearance with seemingly no other point than to give the right-wing a few anti-Democratic talking points.

While DLC types continue to insist that attacks on Lieberman are misguided smears by fanatics, my criticism of the guy still centers on one point: why not just keep his mouth shut rather than making his own party look bad? Is that really too much to ask when the GOP's primary strategy for holding power is coercing party discipline?

From the post:

And while I don't have the transcript yet, the gist of the conversation was as follows. Imus asked Lieberman about the [McCain-Obama] fight, and Lieberman alleged that it was all a big misunderstanding and that both men had were interested in getting a good bipartisan bill out of the process. He implied that both men had cleared up the misunderstanding. Imus at that point interjected that McCain stands by his letter, and Lieberman changed course. Lieberman then said that McCain stood by his letter, and Obama stood by his letter, except that Obama probably wishes he were a little clearer. (. . .)

Oh, and earlier in the interview, Lieberman agreed with Imus that there was "some nonsense" at Coretta Scott King's funeral.

The odd thing about this, as the post notes, is that McCain's letter was snotty and scornful to the point of being juvenile, and Obama's tempered, even response was as diplomatic as you'll ever see.