David Letterman v. McCain

He sums it up...

"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, Sara 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!"