How a presidential candidate announces their bid can speak volumes. Hillary Clinton unveiled her 2016 campaign with a well-crafted video that showcased a diverse slate of ordinary Americans. President Donald Trump descended a golden escalator in Trump Tower to give a freewheeling speech where he referred to Mexican immigrants as rapists and criminals. His audience, which consisted of hired actors, did not get paid by the Trump campaign until after the firm that booked them filed a complaint with the Federal Election Commission.

Senator Elizabeth Warren of Massachusetts took a different tack on Monday when she announced the formation of an exploratory committee for her 2020 bid, a move that’s tantamount to declaring one’s candidacy. Warren is the first major Democrat to make the move, and she won’t be the last. Her video announcement begins with standard fare—a recap of her life story and her career arc—before switching to her vision for governing the country.

Every person in America should be able to work hard, play by the same set of rules, & take care of themselves & the people they love. That’s what I’m fighting for, & that’s why I’m launching an exploratory committee for president. I need you with me: https://t.co/BNl2I1m8OX pic.twitter.com/uXXtp94EvY — Elizabeth Warren (@ewarren) December 31, 2018

Most candidates offer bromides about American greatness, or describe in vague terms the issues they’d tackle as president. But Warren went a step further, offering a grand unified theory for how things went awry in modern American democracy and framing her entire agenda around a single issue.

“Today, corruption is poisoning our democracy,” she says in the video, as footage of Paul Ryan, Mitch McConnell, and other Republican leaders scrolls by. “Politicians look the other way while big insurance companies deny patients life-saving coverage, while big banks rip off consumers, and while big oil companies destroy this planet. Our government’s supposed to work for all of us, but instead it has become a tool for the wealthy and well-connected.”

Anti-corruption is familiar ground for presidential candidates trying to position themselves as outsiders who will fix Washington. Trump argued that his prodigious wealth made him incorruptible, empowering him to “drain the swamp.” The truth turned out to be quite the opposite, of course, but it was an effective campaign message against an established political force like Clinton.