he is a cheat. reporter: explosive allegations by trump s long time lawyer and fixer michael cohen. the president responding this morning slamming the democrats for holding the hearing while he was here at the summit. and it was pretty shameful. he lied a lot, but it was very interesting because he didn t lie about one thing, he said no collusion with the russian hoax. reporter: cohen s testimony up staged any kind of progress, the self described deal maker hoped to gain in his second summit with the north koreian leader. the u.s. was hoping for more concrete steps from pyongyang towards a deal that is verifiable aend forcible, only time will tell now whether the future hold more of this rocket man is on a suicide mission for himself. reporter: or this. i d much rather do it right than do it fast. reporter: tpresident s line s sometimes you just have to walk away. so good that he didn t give anything away as many felt he did at the last summit when he