each one. do you get the sense they are not going to be able to get him to answer the biggest question, which is whether or not mueller would have charged the president with obstruction of justice if he was not anyone but the sitting president? >> yeah, i think the congressman who was just on, i think he even conceded that point. all indications up until today were that bob mueller was not going to answer that question, although, there were some sort of, you know, out lying hope that maybe he would, maybe he would go beyond what was written in the actual report. i think that letter that came from doj tonight putting the nail in the coffin, he's not going to answer the question. so then the question becomes what can they elicit from him? from the facts described particularly in volume two, obstruction which is what the committee is most concerned with and the congressman sounded awfully optimistic to me and i'm afraid that it's overly optimistic because bob mueller doesn't want to tell a story. he's a reluctant witness.