Former first lady Michelle ObamaMichelle LeVaughn Robinson ObamaThe Hill's Morning Report — Category 5 Mueller storm to hit today Warren praises Ocasio-Cortez in Time 100 Beyoncé in 'Time 100' profile: Michelle Obama empowers black Americans MORE suggested Wednesday that President TrumpDonald John TrumpImpeachment? Not so fast without missing element of criminal intent Feds say marijuana ties could prevent immigrants from getting US citizenship Trump approval drops to 2019 low after Mueller report's release: poll MORE is held to a lower standard than former President Obama, who faced a higher presidential "bar."

“Often time, when you’re the first or the only, the bar shifts a lot, right?" the former first lady said in a speech to promote her new book at the Barclays Center in New York City. "The bar gets set, you meet it, exceed it, they move the bar, and were watching that right now — the bar’s just swinging, and swinging,” she said, according to The Associated Press.

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Obama added that the bar for Trump is "very different" than the bar was for her husband, who she said was expected to tell the truth and not get indicted.

“It’s a totally new bar — never seen this bar before, ever,” she said. “But when we were in office, our bar was very different — not getting indicted, and telling the truth.”

In her book, Obama writes about how she and her husband had to meet a higher standard as the first black president and first lady.  

"Becoming," her memoir, quickly became the fastest-selling book of 2018 when it was released last month. It has sold more than 3 million copies.