kim jong un and our president over something of this magnitude. >> and in a case like this, it's almost as though he's taunting him to press the nuclear button, saying, hey, mine works, by the way. >> exactly, which is not what you necessarily want two nuclear armed powers to do. just tonight, a new op-ed in "the new york times" by fusion gps, the firm that did the russia dossier, defending the dossier. they wrote, we told the senate judiciary committee in august, our sources said the dossier was taken so seriously because it corroborated reports the bureau had received from other sources including one inside the trump camp. was there a source inside the trump camp? >> that's new to me, i hadn't heard that when i left a year