The day you try to pull of some stupid publicity "time-out" of your campaign should not be the same day you are supposed to appear on Letterman:
In the middle of the taping Dave got word that McCain was, in fact just down the street being interviewed by Katie Couric. Dave even cut over to the live video of the interview, and said, "Hey Senator, can I give you a ride home?"
Earlier in the show, Dave kept saying, "You don't suspend your campaign. This doesn't smell right. This isn't the way a tested hero behaves." And he joked: "I think someone's putting something in his metamucil."
"He can't run the campaign because the economy is cratering? Fine, put in your second string quarterback, Sarah Palin. Where is she?"
"What are you going to do if you're elected and things get tough? Suspend being president? We've got a guy like that now!"
UPDATE: New and improved - now with video: