Say what you will about Omarosa Manigault Newman. She’s been called an opportunist and is even regarded by many African-Americans as a sellout, but she is now a best-selling author.

Omarosa’s explosive Trump tell-all book, Unhinged: An Insider’s Account of the Trump White House, has hit No. 1 on The New York Times best-seller list. The former Apprentice contestant, White House staffer, and black Donald Trump mouthpiece has used the book to speak against the Trump administration and expose its often racist inner workings.

READ MORE: Omarosa says she’d run for office– “We can’t just sit back and ignore Donald Trump”

“We’re delighted that readers have responded enthusiastically to Unhinged,” Gallery Books, the book’s publisher, said in a statement to the Hollywood Reporter. “It is selling well in all formats — print, e-book and audio. Omarosa continues to promote the book and is committed to sharing her story.”

Along with topping the Times‘ list, Unhinged is also at the No. 2 spot on Amazon. Omarosa sparked loads of controversy during a series of interviews and appearances promoting where she addressed a rumored tape of Trump saying the “N-word” – which does not appear in the book – and produced a number of recordings including the moment she was fired from the administration by Chief of Staff John Kelly.

“I have heard the tape. I know it exists and what I regret is that these people are trying to leverage it as an October surprise. I don’t want to be a part of it,” she said on NBC’s Meet the Press. “Once I heard it, it was confirmed what I feared the most: Donald Trump is a con. It confirmed he is truly a racist.”

READ MORE: Black Americans still aren’t inviting Omarosa to the cookout after she turned on Trump

In response, Trump has called her a “crazed, crying lowlife” and a “dog” on Twitter.

In another interview, on MSNBC, Omarosa, who once said that Trump wasn’t racist because he hired her and said his critics would “bow down” to him, said that his actions further showed his disdain and disrespect for black women.

“He has absolutely no respect for women, for African-Americans,” Omarosa said, “as evidence by him instructing the chief of staff to lock me for two hours in the Situation Room, to harass me, to threaten me and say that.”