before that committee detailing various meetings he had with president nixon. and it always, everybody was saying at that point it's really his word against the president's. john dean was an excellent witness. he was very detailed. but it was really his word against president nixon. >> in the hearing, is that when the prosecutors discovered that there were tapes? >> that was the first time the prosecutors knew about the tapes. everyone was learning it at the same time. >> on that suspense point, we're going to take break here, when he come back, you're going to hear what jon stewart thought of richard nixon.