National security adviser John Bolton, who was in Singapore when news of Ricardel's dismissal broke, said when he tapped her to be his deputy in April that she "has a track record of successfully managing teams and diverse organizations, as well as addressing complex issues".
She previously served as acting assistant secretary for global security policy under former Secretary of Defense Donald Rumsfeld.
Sources said that Mrs Trump explicitly asked the president to oust Ms Ricardel after their dealings over the Africa trip "didn't go well". It was not immediately clear what her next position within the administration would be.
Palestinian Militants Keep Up Most Intense Rocket Fire On Israel
Lieberman's resignation delivers a major blow to Israel's ruling coalition and appears likely to spark early elections. On the Israeli side of the border, residents said they had stayed close to shelters throughout the night. -Gen.
Ricardel threatened to withhold National Security Council resources for the trip unless she or another NSC staffer were included in the first lady's entourage, according to a person familiar with the matter.
On Tuesday, Melania Trump sought her removal.
"It's not unusual" for a first lady to weigh in on a president's staff, said Kate Andersen Brower, author of "First Women: The Grace and Power of America's Modern First Ladies".
While first ladies historically have been known to pressure their husbands over official business, they do not typically issue statements about it. Regan, however, eventually got some revenge: He used his memoir to talk about how Mrs. Reagan used an astrologer to help set the president's schedule.
Spending many of one's formative years in the Eastern Bloc and then thriving in the greatest democracy on Earth brings with it an insight that is invaluable in any setting, especially the White House.