Where's McCain?

I love David Letterman. Check out this clip from last night's show. McCain was supposed to be Dave's guest, but he bailed at the last minute, leaving Dave scrambling and not the least bit happy. "Hey John, I've got a question: Do you need a ride to the airport?" Wow ... Dave's true colors really came out during the show, and he replaced McCain with my boy, Keith Olbermann. Anyway, I love this clip. It's classic Letterman. Enjoy.