Howard Dean vs. Letterman

I haven't seen this anywhere else, and because it was right before I went to sleep, it may have been a dream. But last Wednesday night, Howard Dean was on the Late Show with David Letterman. I asn't all that excited, but my wife (the good Democrat) was excited to see the leader of her party.
The amusing thing about the interview, was that Dave (whose humor I usually find sophmoric.) did not do a softball interiew. When Dean started going on about how evil Republicans were, and the "culture of corrouption" Dave told him "It sounds like you are just spouting slogans, what are the Democrats going to do?" Dean seemed at a loss that anyone in the entertainment industry would actually not agree with him immediately.
The funniest part of the interview though, was when Dean was going on about Tom Delay, Scooter Libby, Karl Rove, Frist et.al., and Dave asked him "But there are Democrats who have broken the law too, are you going to go after them?" And there was this long pregnant pause that became very uncomfortable. You could imagine Howard Dean asking himself why he went on that show.