because any live witness is very powerful. the ones we already had were very powerful. but were they to get people like mulvaney and bolton, those could provide very blatant and damaging evidence to them, and that, i think, could raise some peril for him even in this sort of bedrock support he has with republican senators. the second aspect of it is that same peril goes to his political liabilities which it really places in the eyes of the american public and the voting public just exactly what he was doing wrong, and that is certainly going to hurt him in the elections and that probably is the bigger peril that he faces as well as the fallout for the republican senators. if they are confronted with this kind of blatant evidence of his wrongdoing, and yet there's still a monolithic block, it raises questions of what they're doing. >> that would be one of the reasons he would not want