Here are the notable firings and resignations of the Trump administration, starting with the most recent departure:
April 10: Tom Bossert
A day after new national security adviser John Bolton began his tenure, homeland security adviser Tom Bossert resigned, the White House announced.
April 3: Michael Anton
A day before John Bolton was set to take over from his boss, former national security adviser H.R. McMaster, the NSC spokesman announced he would be leaving to join a conservative college as a writer and lecturer.
March 28: David Shulkin
The announcement of the Obama administration holdover's departure came via tweet, after weeks of speculation about his fate.
March 22: H.R. McMaster
The departure of the national security adviser appeared to be amicable, with each releasing written statements thanking each other.
March 16: Andrew McCabe
The deputy director of the FBI was set to retire in just a matter of days when Attorney General Jeff Sessions decided to fire him.
March 13: Rex Tillerson
After months of friction, the secretary of State was bumped from his position. According to a statement from the State Department, Tillerson had not spoken to the president and was not aware of the reason for his dismissal.
March 6: Gary Cohn
The head of the National Economic Council plans to resign from the administration, amid a fierce internal debate over proposed tariffs on foreign-made steel and aluminum.
Feb. 28: Hope Hicks
The White House communications director announced her resignation and that she would be leaving in the coming weeks or months. She took on her role in August and has been one of Trump's longest-serving aides.
Feb. 27: Josh Raffel
The White House deputy communications director, plans to leave the Trump administration in the coming months. Raffel joined the White House last year to work with the Office of American Innovation.
Feb. 7: Rob Porter
Porter's resignation as the White House staff secretary came after domestic abuse allegations against him were made public.
Dec. 13: Omarosa Manigault Newman
Newman, who rose to notoriety when she was on The Apprentice with Trump, was left her job in the White House's Office of Public Liaison. She later denied that she had been fired or escorted from White House grounds, though the Secret Service did say it terminated her access.
Dec. 8: Dina Powell
Trump's deputy national security adviser, who was a driving force behind the president's Middle East policy, announced her plans to depart the administration in 2018, the White House announced in December.
Sept. 29: Tom Price
The Health and Human Services secretary resigned after revelations that he had racked up around $400,000 in private flights while traveling on official business.
Aug. 25: Sebastian Gorka
When the controversial counterterrorism adviser stepped down, he said Trump's populist campaign agenda had been hijacked by establishment figures.
Aug. 18: Steve Bannon
The chief strategist, who had a turbulent time at the White House, left his post after pressure to remove him from his post following violent clashes in Charlottesville, Va. For his part, Bannon said he resigned two weeks prior.
July 31: Anthony Scaramucci
The controversial communications director stepped down after 11 days on the job, the same day John Kelly took over as chief of staff.
July 28: Reince Priebus
In his six-month tenure, marked by staff infighting and political reversals, the chief of staff was often a target of Trump loyalists who said he had failed to help the president win congressional legislation.
July 25: Michael Short
The senior assistant press secretary, brought on by Priebus, resigned after Scaramucci said he was going to fire him for allegedly leaking to the press.
July 21: Sean Spicer
The press secretary's tumultuous tenure, marked by standoffs with the press, culminated in his resignation when Trump went against his advice to hire Scaramucci as his new communications director.
July 6: Walter Shaub
The director of the Office of Government Ethics clashed repeatedly with the president before announcing his resignation.
May 18: Mike Dubke
Trump's first communications director did not work on the Trump campaign and did not know Trump before his hire. He handed in his resignation after three months on the job.
May 9: James Comey
The White House initially said the FBI director's firing was based on the Justice Department's recommendation, over his handling of the Clinton email probe. Since then, Trump has said he had considered firing Comey even without that recommendation and has said the Russia investigation was on his mind when he made the decision.
May 5: Angella Reid
The chief usher was fired for unclear reasons; it is unusual for a chief usher to be dismissed and they typically hold their positions for several years and over a number of administrations.
Feb. 13: Michael Flynn
The national security adviser was mired in controversy after news reports surfaced that he had misled officials, including Vice President Pence, about his communications with Russian Ambassador Sergey Kislyak. He resigned shortly afterward.
Jan. 30: Sally Yates
The acting attorney general, a holdover from the Obama administration, was dismissed after she refused to defend the first iteration of Trump's travel ban on citizens from seven Muslim-majority countries.