open the president up to obstruction of justice. >> of course. he's the president of the united states. if he doesn't testify, the inference is he's guilty. he has go to testify. there's a unique dynamic in this kind of a case. the same thing happened in watergate. there is no way a political figure who is trying to hold on to his power can just clam up and take five. he can't do it. if he does, that is politically disastrous for him. if this is really the witch hunt he claims it is, claiming there was no conspiracy between his campaign and the russian government, he has to put his mouth where his money is. i mean, he's got to get in there and testify. >> good luck. we don't know where his money is. we've never seen his taxes. kristen, another unusual circumstance. today, the president is headed down south to tennessee for a duo of appearances. first in nashville and then going to georgia, atlanta. what can we expect from him? i can't get my mind off of air force one. bob corker is going to be