William P. Barr:President Trump’s pick to succeed Jeff Sessions as attorney general, William Barr would come to supervise the special counsel probe as it approached its conclusion. Barr was friends with Robert S. Mueller III, both having worked together previously in the Justice Department. But before coming back into government, Barr had raised questions about Mueller’s case and his team—even sending a memo to Justice Department leaders criticizing what he viewed as the special counsel’s “fatally misconceived” theory of how the president might have obstructed justice.