Her departure comes one day after she spent eight hours answering questions from members of the House Intelligence Committee, who are investigating Russian interference in the 2016 election. During her testimony, she rarely answered questions but admitted she has occasionally told "white lies" for Trump.
She was just 27 when she signed on as press secretary for the Trump campaign, and over the ensuing months stayed on in some capacity or another as controversial figures like Paul Manafort, Michael Flynn, Anthony Scaramucci and Sean Spicer came and went.
She first got connected with Trump through her work with a PR firm that represented Ivanka Trump's clothing line. She later signed on full-time working for the future president's daughter, and helped expand the Ivanka Trump Collection brand while occasionally modeling.
Despite no political experience, Trump put her in charge of his campaign communications.
Throughout the Trump campaign and presidency, she has kept a low profile.
At one point, Hicks refused to answer questions about herself for a June 2016 profile that was supposed to be of her, instead letting Donald Trump talk about her in front of her.
What little glimpse of her the public has seen has been bizarre, like rumored romances with former Trump associates like Corey Lewandowski and Rob Porter.
Porter left the White House earlier this month after strong evidence that he'd beaten his two ex-wives surfaced.
And former campaign manager Lewandowski left the Trump campaign amid controversy in June 2016. At one point, Trump allegedly told Hicks she was "the best piece of tail" Lewandowski would ever have.
It gets weirder (allegedly).
Lewandowski writes in his book, Let Trump Be Trump, about how Trump would make Hicks steam his pants — while he was wearing them — and chided her if she forgot the steamer, to which he referred as "the machine."
It's unclear what her date of departure is, Politico notes, but Wednesday she offered a statement thanking Trump for the opportunity.
"There are no words to adequately express my gratitude to President Trump," her statement reads. "I wish the President and his administration the very best as he continues to lead our country."
This article appears in Feb 22 – Mar 1, 2018.