general, professor nyu law and senior analyst at the atlantic. ron, one thing that's striking to me is just how reluctant of a witness mueller is. great "washington post" reporting over the weekend talking about the wi88 times he testified over the years, leaving the fbi, really sour exchanges he's had with both democrats and republicans in congress over those many, many hours of testimony. lisa monaco, his former staff at the fbi, says he goes there with a kind of dread. knowing that, what should we expect? >> i think we should expect he's going to control, modulate where he goes much more than the committee. i expect this could be a very frustrating afternoon and morning for both sides. on the one hand i think republicans are going to face a witness to show how absurd it is to define him as a partisan warrior against the president. the absurdity, i think, is going