White House Purging Michael Flynn Allies From National Security Council

Lt. Gen. H. R. McMaster, who succeeded Mr. Flynn as national security adviser, has slowly been removing some of his appointees, angering conservatives.

Turmoil at the National Security Council, From the Top Down

Staff members are struggling to make policy to fit the president’s Twitter posts, and the council’s leader, Michael T. Flynn, is facing an inquiry into his communications with Russia.

News Analysis: Trump Foreign Policy Quickly Loses Its Sharp Edge

He is proving to be less of a radical than either his campaign statements or his tempestuous early phone calls with foreign leaders would suggest.