Prince William and Kate Middleton are in New York City. We have got to do something about immigration.
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 LettermanPresident Obama's trying to work out a nuclear deal with Iran, and the Republicans are steamed. They got together and sent Iran a letter about the nuclear deal. They said if this doesn't work, by God, they're going to send Seth Rogen and James Franco.
David Letterman