With his forced resignation, US Defense Secretary Jim Mattis joins a long list of departures from the Trump administration.
Ever since Donald Trump took the US presidency in January 2017, more than 50 administration members and high-ranking officials have either left their posts or been removed.
The record setting departures in less than two years amount to a turnover rate of almost one exit every two weeks or 10 working days.
Here's a look at a few prominent exits:
US Defense Secretary Jim Mattis resigned on December 20 after Trump announced an abrupt withdrawal of US troops from Syria.
‘You have the right to have a secretary of defence whose views are better aligned,’ the defence secretary told Trump in his resignation letter after two years of deep disagreements with Trump over America's role in the world.
Mattis, perhaps the most respected foreign policy official in Trump's administration, will leave by the end of February 2019.
Trump announced on December 15 that Zinke will be leaving the administration at the end of the year after having served for a period of almost two years as the US Secretary of the Interior.
Zinke is one of several members of Trump's cabinet to come under fire over expenditures, including reports that his department was spending nearly $139,000 to upgrade three sets of double doors in his office - a cost he later said he negotiated down to $75,000.
Ayers announced that he would leave the White House at the end of 2018 where he served as the chief of staff to Vice President Mike Pence. His resignation came as he declined Trump's offer to be his new chief of staff to replace after John F. Kelly.
John F. Kelly
A retired US Marine Corps general, Kelly was selected as the first Secretary of Homeland Security in the Trump administration on January 20, 2017. Almost two years after, Trump announced that he would step down by the end of the year. The two men were no longer on speaking terms when his resignation was announced, according to Reuters citing a source with direct knowledge of the situation.
Became attorney general of the United States on February 8, 2017. He was forced to resign by Trump on November 7, 2018.
Served as the United States ambassador to the United Nations since January 25, 2017. She resigned on October 9, 2018 and will leave her post at the end of this year.
Sworn in as Environmental Protection Agency administrator on February 17, 2017. He stepped down on July 5, 2018.
Herbert Raymond McMaster
Assumed post of national security adviser of the US on February 20, 2017. He was fired by President Trump on March 22, 2018.
Served as chief economic adviser to the US president from January 20, 2017 until he resigned from the post on March 6, 2018.
Became White House Communications director on the same day Trump assumed office on January 20, 2017. She resigned on February 28, 2018.
Served as Veterans Affairs secretary from January 20, 2017 till the day he was fired on March 28, 2018.
Rex W Tillerson
Became the US secretary of State on February 1, 2017. He was fired on March 13, 2018.
Omarosa Manigault Newman
Became assistant to the president and director of Communications for the Office of Public Liaison on January 20, 2017. She resigned on December 13, 2017.
Served as United States Secretary of Health and Human Services since February 10, 2017. He resigned on September 29, 2017.
Became White House deputy assistant on January 24, 2017. He resigned on August 25, 2017.
Became White House Chief Strategist on January 20, 2017. He was fired on August 18, 2017.
Served as White House Communications Director for 10 days between July 21, 2017 and July 31, 2017. He was fired.
Became White House Chief of Staff on January 20, 2017. He was fired on July 28, 2017.
Served as White House Press Secretary from January 20, 2017 till the day he resigned on July 21, 2017.
Only Obama-era appointee on this list who served as Director of the Federal Bureau of Investigation(FBI) since 2013. He was fired by Trump on May 9, 2017.
Served as United States National Security advisor from January 20, 2017 till February 13, 2017.