Since replacing Michael Flynn as National Security Adviser, H.R. McMaster has worked to wrest control of the National Security Council away from the nationalist wing of the administration, carrying out a series of high-profile staffing changes in the process. The latest move: Ezra Cohen-Watnick, the senior director for intelligence at the NSC, was shown the door today by McMaster, who, according to a White House official, decided that "a different set of experiences is best-suited to carrying that work forward." The White House said that Cohen-Watnick will remain in another national security position in the administration. Think back: Cohen-Watnick first...