arguably the ultimate deal, to talk about what that negotiation may look like, i'm joined by michael deanne tone yo, he's a trump biographer, the president says this will be a one time deal. he says, i've been preparing for this all my life. >> you know the man, what do you think trump is thinking going into this? >> i can be certain of the first claim, that this is a one time event, is very soft. if he sees an opening for addicontact. i think he'll take it up when he's mentioned kim could come to the white house i think he's serious about that. the other claim he's been preparing for this all his life is in a w quitetrue, he imagined himself a nuclear negotiat negotiator back in the '80s, talking about how he should be sent to moscow or reykjavik to negotiate with the then soviet union. he's been preparing for this all along in his imagination. there is a difference between studying up for it, this is not a dog who likes to learn now tricks. he's been thinking about this for a very long time. >> speaking of age, we know that president trump turns 72 on thursday. and kim, we believe is 34.