The ayatollah in Iran says he believes that he got the letter, but he thinks he accidentally threw it out with his Crate & Barrel catalog.
David LettermanYou know who's upset now with ISIS? Al Qaeda. It's because ISIS is getting more attention than Al Qaeda. So now, Saturday night will be Ayman al-Zawahiri bobblehead night.
David LettermanHillary Clinton could use one of these Apple Watches. She could hook it up to her secret email account. If you want to contact Hillary, she's at hillary@pantsuit.com.
David LettermanJeb Bush has to distance himself from what they call the Bush brand. So he keeps saying, 'I am my own man.' But when Governor Chris Christie is out on the campaign trail, he's always saying, 'I'm my own man, plus another guy.'
David Letterman