President Trump fired Attorney General Jeff Sessions on Wednesday and replaced him on an interim basis with the attorney general’s own chief of staff, a man named Matt Whitaker. Whitaker has made repeated public statements expressing skepticism about the Mueller investigation, which he will now be supervising. Benjamin Wittes got on a recorded conference line with Susan Hennessey, Paul Rosenzweig, Steve Vladeck, Chuck Rosenberg and Bob Bauer to discuss the day’s events: the president’s action, how we should understand Whitaker, and what congressional pushback we can expect, both now and when the new congress comes in.