 Mr. President, I want to raise an issue that I think has been working out there for two or three weeks and cast it specifically in national security terms. You already are the oldest president in history, and some of your staff say you retired after your most recent encounter with Mr. Mondale. I recall yet that President Kennedy had to go for days on end with very little sleep during the Cuba Missile Crisis. Is there any doubt in your mind that you would be able to function in such circumstances?