I didn't watch this part, but Joe Klein saw Joe Lieberman trying to bait General Petraeus into saying we should attack Iran.
Joe Lieberman was again notable yesterday for moving to the right of most of the Republicans on the panel, asking General Petraeus if it might be a good idea to invade Iran and take out the Revolutionary Brigade facilities allegedly supporting the Shi'ite militias. Petraeus said he had no authority outside Iraq. But you can see where Lieberman is heading now--and it's atrocious.
There was a period when the anger between Lieberman and the Democratic Party really did seem to center around a limited disagreement on the path forward in Iraq. At this point, though, Lieberman's hawkishness seems more of an unthinking positioning device. But it's very serious, and will undoubtedly receive a warm reception on the Wall Street Journal editorial page.