he is well aware of the pitfalls this presents. >> something interesting in our article, you reported on a practice session that president trump's attorneys put him through. what did your sources tell you about that? >> well, yes. so they ran some sample questions by president trump in the white house residence to see how he would do, and they made very little headway. they were there for four hours, but they were repeatedly interrupted. national security advisers would come into the room, they want to talk to the president about north korea, or iran, the lawyers would have to leave the room, because they did the interview privy to that, then they would come back, try to resume the q and a, and they found that the president was kind of, as i mentioned, long-winded in his answers and they weren't able to cover very much ground. so, it was not a successful experiment, is what i'm told. >> peter nicholas, great reporting. thank you so much for being with us. >> great to be with you. >> joining us now, jim acosta at the white house and cnn chief political analyst gloria borger.