The new White House chief of staff is responsible for some of the most provocative policies of President Trump’s second term, as well as an aggressive approach to executive power.
As President Trump’s domestic policy adviser, Mr. Miller has been one of the most deeply ideological members of the White House, and known for flexing his power.
Mr. Miller, the White House’s domestic policy adviser, who has driven the administration’s immigration crackdown, will replace Susie Wiles, the president said.