Gary D. Cohn, President Trump’s top economic adviser, is the most recent high-profile member of the White House to announce plans to depart the West Wing.
Below are the top White House officials who resigned, or were fired, dismissed or reassigned.
Stephen K. Bannon: Chief strategist
President Trump told aides in August he had decided to remove Mr. Bannon, a right-wing nationalist who has clashed with other senior White House advisers and members of Mr. Trump's family. But a person close to Mr. Bannon said that he had submitted his resignation to the president earlier that month.
Gary D. Cohn: Chief Economic Adviser
Mr. Cohn's decision to leave came after he seemed poised to lose an internal struggle over Mr. Trump's plan to impose large tariffs on steel and aluminum imports.
Mike Dubke: Communications Director
Mr. Dubke told colleagues that the reasons for his resignation were “personal.”
Michael T. Flynn: National Security Adviser
Mr. Trump asked Mr. Flynn for his resignation more than two weeks after he was told that Mr. Flynn had lied to the vice president and was vulnerable to blackmail by Russians.
Sebastian Gorka: White House Adviser
Mr. Gorka served as an adviser to the president on national security issues. Two administration officials said that he was forced out, and a conservative website reported that he had resigned.
Hope Hicks: Communications Director
On Feb. 28, Ms. Hicks, one of Mr. Trump's longest-serving advisers, said she planned to leave the White House in the coming weeks.
K. T. McFarland: Deputy National Security Adviser
Ms. McFarland, who was brought to the White House by Mr. Flynn, was named ambassador to Singapore last May.
Omarosa Manigault Newman: Director of Communications for the White House Office of Public Liaison
A former contestant on Mr. Trump's reality TV show "The Apprentice," Ms. Newman was pushed out by Mr. Trump's chief of staff, John F. Kelly, in December.
Rob Porter: Staff Secretary
Mr. Porter cleared out his office in early February amid accusations of spousal abuse.
Dina H. Powell: Deputy National Security Adviser
The White House announced on Dec. 8 that Ms. Powell, one of the most influential women in the Trump administration, was going to step down.
Reince Priebus: Chief of Staff
Mr. Priebus was pushed out, tendering his resignation after Mr. Trump told Mr. Priebus he wanted to make a change and offered the job to John Kelly.
Anthony Scaramucci: Communications Director
He was fired by Mr. Kelly days after a vulgarity-laced telephone call with a New Yorker reporter was made public.
Keith Schiller: Director of Oval Office Operations
One of the president's most trusted aides, Mr. Schiller announced his departure in September.
Sean Spicer: Press Secretary, Communications Director
Mr. Spicer resigned, telling Mr. Trump that he disagreed with Mr. Trump’s hiring of Mr. Scaramucci as communications director.
Katie Walsh: Deputy Chief of Staff
Ms. Walsh was forced out by Jared Kushner and other West Wing officials. She joined the pro-Trump outside group America First Policies.
Ezra Cohen-Watnick: Senior Director for Intelligence, National Security Council
Mr. Cohen-Watnick was appointed by Mr. Flynn. He was pushed out by Lt. Gen. H. R. McMaster, who succeeded Mr. Flynn.
Tera Dahl: Deputy Chief of Staff, N.S.C.
A former writer for Breitbart News who was appointed by Mr. Flynn, Ms. Dahl left the White House for a post at the United States Agency for International Development.
Derek Harvey: Middle East Adviser, N.S.C.
No explanation was given for his exit, but Mr. Harvey was appointed by Mr. Flynn and was widely reported to have been at odds with Mr. McMaster.
Rich Higgins: Director in the Strategic Planning Office, N.S.C.
Mr. Higgins was forced out after writing a memo arguing that Mr. Trump was being subverted by an array of foreign and domestic enemies, including “globalists” and officials of the “deep state.”
Josh Raffel: Senior Communications Officials
Mr. Raffel mainly served as a spokesman for Mr. Kushner, the president's son-in-law and senior adviser.
Michael C. Short: Senior assistant press secratery
Mr. Short, who had been close to Mr. Spicer, resigned shortly after Mr. Scaramucci confirmed to reporters that he was planning to fire Mr. Short.