Michelle Obama has unveiled her new memoir, in which she writes about the transition from her husband’s administration to Donald Trump’s, saying that some news about Barack’s successor “turns her stomach.”

Axar.az reports citing Sputnik.

In her book, entitled “Becoming,” former first lady Michelle Obama took a swipe at America's 45th president, writing that she stopped “even trying to smile” when Donald Trump was being sworn into office in January 2017.

“Someone from Barack’s administration might have said that the optics there were bad – that what the public saw didn’t reflect the president’s reality or ideals. But in this case, maybe it did. Realising it, I made my own optic adjustment: I stopped even trying to smile,” she said, referring to Trump’s inauguration speech.

She also claimed that she would “never forgive” Trump for spreading the “birther” conspiracy theory that Barack Obama was born in Kenya, and therefore ineligible to be elected US president.

Reacting to the claims in the book, Trump accused Michelle of trying to boost book sales with controversy:

“She got paid a lot of money to write a book and they always insist that you come up with controversy. I’ll give you a little controversy back, I’ll never forgive [Obama] for what he did to our US military. It was depleted… and I had to fix it.”