as you've been reporting, is obsessed with mueller. he's not happy with the latest volley in this negotiation over an interview. and you're saying negotiations over this interview are going at a glacial pace. >> right. it's just, it's just excruciating. and finally the -- and rudy giuliani announced this today when he was in new hampshire. finally the mueller team responded to a letter that trump's team had said. and they've been negotiating about the president's testimony and what he testifies on. the trump team has said, you know, we're happy to talk to you about anything that happened pre-inauguration which would be collusion. but the obstruction part of this not so much. and our reporting shows that trump -- that mueller is kind of leaning a little more heavily into the question of whether he does want to hear from trump personally about obstruction because obviously intent is an issue in obstruction. john knows this better than i do. and maybe in exchange for that