but he's saying the depts -- the department of justice will soldier on and that seems to be what robert mueller is doing as we learn he has a very long list of questions he wants to ask the president. >> tonight a new glimpse into some of the areas special counsel robert mueller wants to cover in an interview with the president. according to a list of questions obtained by the new york times. among them, why did president trump decide to fire fbi director james what did candidate trump know about russian hacking during the 2016 campaign and when did trump learn about the 2016 trump tower meeting between his son, top campaign aides and a russian lawyer. trump lashing out today, tweeting. you have made up phony crime, collusion that never existed. and it would seem very hard to obstruct justice for a crime that never happened. witch hunt. legal experts say that argument doesn't hold up. >> you absolutely can obstruct a crime that never occurred.