a book that you're ready to share with the world? get published now, call for your free publisher kit today! the u.s. and north korea in a verbal standoff this morning. pyongyang insisting high level officials in the administration are thwarting president trump's will by amping up pressure on the kim regime to denuclearization. on the other side, diplomatic sources tell cnn that the u.s. has made proposals for a verified denuclearization. all of them have been rejected by the kim regime as gangster like. for the latest on the impasse, let's bring in cnn's will ripley live in hong kong. >> reporter: phil, this really is a surprise to almost no one that this process is turning out to be extraordinarily difficult and slow and frustrating.