In her forthcoming memoir, "Becoming", Obama points to the president's participation in the "birther" movement, which promoted the theory that former President Barack Obama was not actually a US -born citizen.
Stressing that Trump's moves put her entire family in serious danger, Michelle said: "What if someone with an unstable mind loaded a gun and drove to Washington? . Donald Trump, with his loud and reckless innuendos, was putting my family's safety at risk".
"I can't blame her".
"I'll give you a little controversy back", he added.
President Trump dismissed criticism of Michelle Obama on Friday, telling press at the White House that she was just paid to write a book. "What he did to our military made this country very unsafe for you, and you, and you".
The comments were some of Michelle Obama's most direct aimed at the current President, whom she has mostly avoided criticising since leaving the White House a year ago.
Whitaker appointment brings praise and protest in Iowa
Some of the criticism Trump has faced for his choice of replacement has been bipartisan - notably, from George Conway. About 40 people gathered Thursday night at Fountain Park in downtown Rock Hill and marched to U.S.
At least 5 dead as Northern California wildfire almost quadruples in size
He said the fast-moving flames forced fire crews to shelter people at a Walgreens and other locations until flames passed through. Butte County CalFire Chief Darren Read said at a news conference that two firefighters and multiple residents were injured.
Red Star Belgrade vs Liverpool, Champions League
Kosovo declared independence from Serbia 10 years after the bloody conflict between Serb forces and Kosovar-Albanian rebels. Those victories came against Huddersfield, Cardiff and Red Star when they visited Anfield two weeks ago.
In her new memoir, "Becoming", Obama reportedly derides the so-called "birther" conspiracy as thinly-veiled racism.
"But it was also risky, deliberately meant to stir up the wingnuts and kooks", she adds.
"It was an expression of hatred that had generally been kept out of polite company, but still lived in the marrow of our supposedly enlightened society - alive and accepted enough that someone like Donald Trump could afford to be cavalier about it", she writes, according to the Post.
"I've never been a fan of politics, and my experience over the last ten years has done little to change that", she writes according to the Post.
The release of her book will precede a 10-city book tour, starting in her hometown of Chicago. Instead, she'll let her comments in "Becoming" speak for themselves.
"I felt like I failed because I didn't know how common miscarriages were because we don't talk about them", she said. "Michelle Obama is a momma bear when it comes to her family".
She revisits the thrill of her romance with Barack, which began when she was his advisor at a Chicago law firm, describing it as a "toppling blast of lust, gratitude, fulfilment, wonder". It costs thousands of dollars for every "cycle", and many couples require more than one attempt.