How about this John Kerry controversy? So he's out there in California, tells some kind of joke and it backfires. He's saying he botched the joke. ... This guy can lose elections he's not even in.
David LettermanYou like science? You enjoy science? Always use it for good, never for evil. Can you promise me that?
David LettermanDo you remember the good ol' days when Congress was only unsafe if you were an intern.
David Letterman