When Saturday Night Live hired Aziz Ansari to host its first post-Donald Trump inauguration episode, the show landed not only a talented comedian, but also the ideal spokesperson for an immigrant population that might be worried about their place in our country. Given that Ansari didn’t have anything to promote (the second season of Master of None doesn’t premiere until April), the choice seemed more political than anything else. And Ansari did not throw away his shot: he made full use of his platform, addressing Trump, racists, and victims of racism in a scorching, hilarious monologue. It was some of the best material S.N.L. has aired since the show finally put Trump firmly in its crosshairs. And while the series is taking a break until next month, when it returns, it will do so with another perfectly selected and politically-charged star.

Kristen Stewart—fresh off the Women’s March protest in Park City, Utah—will play host on February 4. And, as a recent interview reminded all of us, Stewart and Trump have plenty of history.

“He was mad at me a couple years ago!” Stewart told Variety while promoting her new film Come Swim as part of Refinery29’s Shatterbox Anthology at Sundance. “He was really obsessed with me, which was f--king crazy, like what? I can’t even understand it.”

The backstory: back in 2012, when the presidency was just a glimmer in Trump’s eye, he got (way too) involved in the public breakup of Stewart and her then-boyfriend, Robert Pattinson.

Trump—not one to keep his opinions contained to one tweet—really let Stewart have it, publicly shaming her in a series of tweets that stretched over several weeks. With one last tweet (“After Friday’s Twilight release, I hope Robert Pattinson will not be seen in public with Kristen—she will cheat on him again!”) Trump—a known philanderer himself—finally dropped the subject. But Trump’s infidelity double standard, which came with a dash of slut shaming, was an early indicator of the tone of his presidential campaign—one that would, in the words of Ansari in his S.N.L. monologue, inspire “an entire gender” to protest.

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Stewart was among those protesters on the snowy streets of Park City Saturday. Holding an “I Stand With Planned Parenthood” sign and gamely posing for photos, the former Twilight star made good on her admission to Variety that Trump’s presidency has pushed theher outside her usual apolitical zone. “I’ve never been the most politically charged person, but at this point,” she said, “it’s not political. It’s f--king so humanitarian.”

While Stewart has been less than outspoken about politics before now, the evolution of her career has made quite the resounding statement in Hollywood. Stewart’s early, promising trajectory took a dramatic turn in 2008 when she first appeared as Bella Swan in the Twilight franchise. Embraced by that series’ rabid fanbase, the teenaged Stewart never seemed comfortable with either her astronomical fame or acting the part of swoony, vampire-loving Bella. Stewart still defends the films, but her stiffness in the role was mistaken by many critics for lack of talent.

It’s a misdiagnosis that Stewart made critics eat, thanks to a later string of critically beloved, beautifully realized performances in films like Clouds of Sils Maria, Still Alice, and Certain Women.

These days, with young adult fame and a very public break-up firmly in her rearview, Stewart is doing very well for herself. In the 2013 words of Trump himself, “I think she’s doing just fine—she’s doing really well.” But Stewart’s arthouse stature doesn’t seem to be about currying favor with the critical crowd. In fact, in the past, she’s said that she picks projects capriciously: “I’m genuinely very much blown with the wind. I follow the gut.”

One gets the sense that Stewart doesn’t do anything just to please critics, or devoted fans. The actress famously refuses to smile for photographs and won’t define her sexuality, even in the wake of several relationships with very high-profile women. (Stewart does say that she finds the LGBT movement “to be so important, that I want to be part of it.”) The highly complimentary words Stewart used to describe Joan Jett during a long-ranging interview with Vanity Fair in 2015 might as well have been about herself.

And while Stewart is far from the only edgy, critically-beloved actress with modern ideas about sexuality, she is somewhat unique in that she still retains her legions of mainstreams fans from the Twilight days. In other words, she has the power to make any message—feminist or otherwise—reach beyond the exclusive circle of what Team Trump might call “coastal elites.” Those die-hard Stewart fans will certainly tune in on February 4, when Stewart takes the Saturday Night Live stage.

In the summer of 2015, Tina Fey was asked what she thought of Trump’s presidential run. “It’s great for comedy!” she answered blithely. With all the ills that have come from Trump’s campaign and win, Fey was, in the end, not wrong. Saturday Night Live—the show that once got such flack for giving Trump exposure via a 2015 hosting gig—has carefully rebranded itself as one the loudest voices standing in opposition to him. (That’s called having your ratings cake and eating it, too.) And at this point, S.N.L. couldn’t pick a sharper, more dangerous weapon to aim at Trump than Stewart, a young woman with a huge following that the president once personally attacked. Now that Stewart has transformed herself into an edgy, outspoken, sexually-fluid powerhouse with a newfound taste for politics, well, brace yourselves, America: thin-skinned reaction tweets are coming.