be on. but i think the original reasons that president trump had to cancel this summit, and i don't think it was about the rhetoric, about vice president pence or anything like that. i think it was more a lack of understanding or clarity about what north korea was really willing to discuss and put on the table in terms of this denuclearization and giving up its mcnamee. i'm not sure they necessarily gave them that. until there are more full discussions, i think the same reasons apply. i'm not sure if the summit will be any more success if it happens than it would have before. >> ambassador, you've been at the negotiating table with the north koreans before. what do you make of their willingness to try and salvage this meeting with president trump? they seem to be going the extra mile to try and make it happen. >> oh, i think that's very true, ryan. as you look at the events of the past few days, it's kind of clear. south korean president moon was