They forgot to mention congressman Wexler (D-FL) saying "I like cocaine because it's fun."
I saw that. His interviews are usually pretty hilarious, and generally not like the cheap shots at the Republican party that his show takes in his "The Word" segment. He just tries to make his guests look stupid. The genius of this is the fact that, more times than not, if his guests play along, they look like good spirits, willing to take a jab at themselves. They look less like politicans and more like human beings. Most of the candidates Colbert interviewed before the election won their respective seats, even ones that were considered longshots.
I mean, seriously: if your senator says "I like cocaine because it's fun" (and comments that cocaine is better with hookers), impersonates a robot, acts in a fake porno, or says, "well, you know, there are times when you have to find a way to dispose of kittens", it's hard to see them as a stuffed-shirt beltway insider. To go on Colbert's show and get him to make you look like an idiot is almost a statement of disdain for the polls.
Of course, there are times when I think it has gone the other way. Lynn Westmoreland is a good example. Of course, that was his own damn fault. What kind of idiot introduces a bill on the Ten Commandments and can only name four of them (Colbert edited it down to three)?