[video]http://www.huffingtonpost.com/2012/09/29/letterman-dont-vote-romney-video_n_1925448.html[/video]
Hahaha. Call me old school, but I still like Letterman better than any of the other late night guys. I'm sure all the republicans will say he's got so many better things to do than to be on Letterman's show. I'll bet he's scared Letterman might try to explain to him why airplane windows don't roll down.
SE Cupp said it best when she said that the R's have got to stop condemning Hollywood/TV/Film stars or actors, and then at the same time desperate to get their approval. Going on Letterman, Leno, Daily Show, SNL, etc, introduces you to a big group of voters/interested people. Acting like you're too "busy" or too good for that group isn't going to help you get them. Yea, it may not be a huge group of voters, but it's still a symptom of bigger issues with the R's.