Arnold Schwarzenegger got into a huge debate with Arianna Huffington about immigration - going back and forth - finally immigration came in and hauled them both away.
David LettermanDue to budget crunches, Bush has had to scale some of the programs. He has a new program, 'Leave A Couple of Kids Behind.'
David LettermanMitt Romney had a horse competing in the Olympics. He didn't win. But next year, he'll be competing in 'Dancing with the Stars.'
David LettermanJohn Kerry spent the day reading to preschoolers ... and the kids said Kerry actually lacked warmth and failed to articulate a clear message.
David Letterman