In a sign of the enthusiasm building around her 2020 campaign, Elizabeth Warren drew a massive crowd of 15,000 to a Seattle rally Sunday—her largest since she launched her presidential bid in January—as she called for “change in Washington.” “When you see a government that works great for the rich, that works great for the wealthy and the well-connected and is not working so well for everyone else, that is corruption, pure and simple,” she told the crowd.

It was a familiar touchpoint for Warren, but notable for how strongly it resonated with voters. Though she began her campaign before many of her high-profile competitors, Warren was stuck in the middle of the pack for a good portion of the early primary season behind the likes of Joe Biden and Bernie Sanders. But she’s made steady gains through the summer, releasing a series of bold, detailed policy proposals and nipping at the heels of Biden, whose frontrunner status has appeared in jeopardy as the Massachusetts Senator draws nearer. A star turn at the Iowa State Fair encapsulated her growing momentum; while the former vice president stumbled numerous times in the key caucus state, Warren electrified the audience of thousands that came to see her call for a wealth tax on the richest Americans. “Is it more important to leave the two cents for the bazillionaires?” she asked at the state fair, “Or use that two cents to invest in all of our kids?”

“Two cents, two cents!” the crowd yelled back.

If the fair suggested a growing momentum around Warren, her rally in Seattle over the weekend confirmed it. Speaking at the city’s International Fountain Park on Sunday, she drew what her staff believed to be the largest crowd of her campaign about a week after bringing in 12,000 supporters in Minnesota. Crowd size isn’t necessarily a perfect predictor of political success, but there’s a reason Donald Trump consistently lies and brags about his attendance numbers. Massive crowds can be a real gauge of enthusiasm. They can show how well a message is resonating. And as Warren works her way up the polls, it’s clear that what she’s saying resonates. “They understand they’ve got a government that’s working great for the bazillionaires, but just not working for them,” she told reporters after the Seattle rally. “To change that it’s going to take all of us. Nobody gets to stay on the sidelines.”

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