i said weeks ago that he should -- the first thing he should do is go into the oval office, close the door, and tell donald trump that, you know, i'm drawing a line right here. if you cross it, i will resign. clearly that never happened. >> right. >> but now you've got -- we're at a point where donald trump is increasingly isolated. he's more angry by the day. he's unraveling, it seems, if this tirade is any indication. so you have to wonder at some point, you know, what's the remedy if things get much worse? >> it is a question that everybody is asking along with the question about whether or not this raises issues about donald trump's fitness for office. >> well, we may not be there yet. but the day could very well come when donald trump is so unhinged as he gets angrier and more isolated that he becomes a threat to national security and so domestic tranquility. some people would argue that he already is.