It's with Congressman Lynn A. Westmoreland
Colbert: You have not introduced a single piece of legislation since you entered Congress.
Westmoreland: That's correct.
Colbert: This has been called a do nothing Congress. Is it safe to say you're the do nothingest?
Westmoreland: I, I, ..Well there's one other do nothiner. I don't know who that is, but they're a Democrat.
Crooks and Liars has the video (WMP)
(Thanks to Political Wire )