CNN CNN Special Report May 23, 2015 23:55:00
He doesn't really -- he doesn't even go to rehearsal. there are people who say he probably should have left when he was closer to the peak. but i think it's really been very hard for him. >> when this show stops being fun, i will retire ten years later. >> then, last april, letterman made a shocking reveal about a phone call he had with cbs honcho, les moonves. >> i said, leslie, you've been great. the network has been great. >> there was no indication, he said, can you just come with me, and took me into a little alcove, and he said, i've told the guys that -- >> i'm retiring. >> this is real...