justin amash raising questions about the mueller report. it's private but private grumbling among republicans. they still see president trump as a way to win re-election in 2020. if they want to keep their power, they have to stay with him. >> i remember, it's not the same but about a damn breaking. i remember around the iraq war. at first chuck hagel and john mccain, a vocal critic, from the right we weren't aggressive enough. it only takes one. it only takes one. then everybody that's unhappy or discontent with the conduct of the iraq war or the way it was being pursued or the way we were communicating about it, the flood gates open. is there any anxiety that that could be on the horizon? >> certainly. i think the most interesting word we've heard the last few days is courageous. that's the word senator mitt romney used to describe what senator amash had to say. to be sure romney hasn't called for impeachment and hasn't gone nearly as far as amash but calling that point of view