Brooklyn, New York (CNN) Bernie Sanders drew a hometown hero's crowd Sunday in Brooklyn's Prospect Park, during a rally which his campaign billed as its biggest ever.

More than 28,000 turned out on the sunny spring day to see the Vermont senator who grew up in Flatbush, Brooklyn, according to Doug Lehman, who produced the event with 42 Inc.

Democratic Presidential Candidate Bernie Sanders speaks during "A Future To Believe In GOTV Rally" in Brooklyn's Prospect Park.

The senator stuck to his usual stump speech, heavily hitting the big banks of nearby Wall Street and drawing contrasts between himself and Democratic rival Hillary Clinton and Republican front-runner Donald Trump, two others who claim New York as home turf.

"We do not represent the interests of Wall Street or the billionaires class or corporate America. We don't want their money. We're going to do it a different way," he told the crowd in the waning afternoon sunshine.

He was introduced by several high-profile surrogates, including Rep. Tulsi Gabbard, D-Hawaii, and actor Danny DeVito.

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