Chairman Dean [UPDATED]
I thought he was great on Russert this morning. He didn't back away from controversial comments and for the most part brought everything back to the central message: Republicans are doing terrible things to the country, and that's what happens when one party becomes entrenched in Washington. He did spend almost an entire segment referring to Osama bin Laden when he clearly meant Saddam Hussein, and he probably did get drawn further into bringing out his personal opinions on issues--as opposed to speaking on behalf of the Party--than some congressional leaders might like. I'll post a transcript link when I find it. You can catch the replays tonight if you missed it.
[UPDATE: Transcript here]