Long ago when I lived and wrote in Washington, I developed a theory about when it was time for a politician to go: When there was so much bullshit coming out of his mouth that even he no longer had any idea what was true and what was nonsense, it was time for that pol to move on. Or for the voters to make him do so.

(I developed the theory, by the way, while reporting a story about Dick Gephardt.)

Watch as Joe Lieberman reaffirms that theory on Meet the Press. Probably 90% of everything he says in this clip is either utter nonsense or demonstrably untrue—which is to say, a lie.

And watch as, about 5:50 in, Lieberman can’t bring himself to apologize for anything he did during the campaign. It is there any better definition of hubris than the inability to speak the words, “I’m sorry”?