Omarosa praises outgoing Nikki Haley -- and uses her departure to once again stick it to Trump

Former Trump aide Omarosa Manigault Newman on Tuesday praised departing United Nations ambassador Nikki Haley -- and then used her recently announced resignation to once again rip her former boss.

"Spent almost a year sitting in cabinet meetings with Nikki Haley," she wrote on Twitter. "She is strong smart and authentic! Losing Haley (a woman of color) right before the election will be more of a statement of #45’s lack of diversity in this administration."

Omarosa then trolled President Donald Trump even further by asking her followers to pick Trump's choice to replace Haley -- and restricted the responses to "a white male," "a woman," "an older white man" and "a billionaire white guy."

Although Omarosa was once one of Trump's most devoted loyalists, she quickly turned on the president after being fired late last year. In a book she wrote about her time in the Trump White House -- titled “Unhinged: An Insider’s Account of the Trump White House” — she claimed that she personally witnessed Trump go on a racist tirade against George Conway, the husband of Trump adviser Kellyanne Conway, whose mother is from the Philippines.

Omarosa also wrote in her book that Trump underwent a noticeable mental decline during the first year of his presidency, while alleging that he regularly “spoke gibberish.”