White House Deputy National Security Adviser Mira Ricardel has left her post, following a high-profile row with US First Lady Melania Trump.
A White House spokeswoman said Mrs. Ricardel “departs the White House to transition to a new role within the administration”. She did not elaborate.
Mrs. Trump this week said that Mrs. Ricardel “no longer deserves the honour of serving in this White House”.
The two reportedly feuded during a tour of Africa in October.
The removal of Mrs. Ricardel comes amid reports in US media that President Donald Trump is considering a shake-up in the White House West Wing.
Mr. Trump may be preparing to remove White House Chief of Staff John Kelly or Department of Homeland Security Secretary Kirstjen Nielsen, the reports say.
The announcement of the transfer of Mrs. Ricardel was made in a statement by White House spokeswoman Sarah Sanders on Wednesday.
The spokeswoman added that Mrs. Ricardel “will continue to support the president”.
According to US media reports earlier this week, Mrs. Trump and Mrs. Ricardel quarrelled over seating arrangements on her plane.
During her trip there, Mrs. Trump told ABC in a rare interview that there were people in the White House who she does not trust.
She said she gave the president “my honest advice and honest opinions and then he does what he wants to do”.
The Wall Street Journal had earlier reported that Mrs. Trump’s team believed Mrs. Ricardel was behind some of the “negative stories” about Mrs. Trump and her staff.
The newspaper also reported that she repeatedly clashed with US Secretary of Defense James Mattis over “staffing decisions and policy differences”.
READ ALSO: Foreign Titbits: Melania calls for national security aide Mira Ricardel’s firing
Mrs. Ricardel was hired away from the Department of Commerce by National Security Advisor John Bolton, and has decades of experience working in the US government.
She had earlier worked in the defence department under former President George W Bush as well as under Republican Senator Bob Dole when he served as the Senate Majority Leader.
Stormy Daniels’ lawyer Michael Avenatti arrested
Michael Avenatti, lawyer for porn star Stormy Daniels in her suit against President Donald Trump, has been arrested on suspicion of domestic violence, police in Los Angeles say.
Celebrity news website TMZ said this followed a physical confrontation between the lawyer and a woman.
He denied the claim, and was later released on $50,000 (£38,500) bail.
The lawyer represents Ms. Daniels, who alleges she and President Trump had a brief relationship – a claim he denies.
Ms. Daniels has sought to free herself from a non-disclosure agreement she signed before the 2016 election.
In a statement issued by his office, Mr. Avenatti said: “I have never struck a woman. I never will strike a woman. I’ve been an advocate for women’s rights my entire career.”
He also thanked “everyone who has reached out with supportive messages”.
A frequent guest on TV talk shows and news programmes, Mr. Avenatti has emerged as a fierce critic of President Trump, the BBC says adding that at one point he was publicly contemplating running for president himself in 2020.
