Letterman Slams McCain -- Again

I was talking to a friend at work after the initial slam by David Letterman on John McCain for canceling his appearance and I said, "You watch, Letterman won't let this die. There will be a joke about McCain every night between now and the election." Sure enough, Letterman again went off on McCain on Thursday night's show. Now I don't think he'll keep up the intensity of these "attacks" but I'll bet he will keep it up with at least a little something between now and Nov. 4. We shall see.