to congress. that's the traditional route. no one has tested this. and i trust the legal opinion here that mueller is not in -- you know, is not in a place to test it. but it doesn't mean anything about the case he has put together. >> from a legal standpoint how do you see it. >> it's a open question we said this time and time again whether a subpoena can be effected upon the president in a criminal matter. we have seen it in a civil matter. but it's never been tested in a criminal matter. and you know, there has been -- there have been subpoenas issued as it relates to dualities but not for verbal testimony. so that's an open question. if the president doesn't agree to be interviewed does the lawyer say look we're not opens the door to subpoena. at that point in time that's something that will probably go to the supreme court no question. >> you know, i got to tell you what i take away from this is what i said now for months, the president should take this -- and the team should take it as a signal that it's time to start