Speaking at the "Politics and Eggs" breakfast at Saint Anselm College on Friday morning, Sanders attacked the 38-year-old former mayor for allegedly cosying up to billionaire donors. "How do we feel when we have candidates in the Democratic Party right now—I'm reading some headlines from newspapers about Pete Buttigieg," the Vermont senator said, before describing his rival as a 2020 candidate that possesses the "most exclusive billionaire donors of any Democrat."
"Which side are you on?" Sanders asked. "We are in a moment where billionaires control not only our economy but our political life."
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Tens of thousands of Sanders supporters took to Twitter to condemn Buttigieg's candidacy for taking money from big donors, as the Vermont senator's staffers promoted the hashtag. "#PetesBillionaires—retweet it," tweeted David Sirota, Sanders' speechwriter. As of Friday afternoon, #PetesBillionaires rose to the third-most trending topic on the social media platform in the United States. At the time of publication, the hashtag had garnered more than 40,000 tweets.