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Throngs of supporters listen as Democratic Presidential candidate Bernie Sanders speaks in Prospect Park to hear Democratic Presidential candidate Bernie Sanders speak on April 17, 2016 In the Brooklyn borough of New York City. While Sanders is still behind in the delegate count with Hillary Clinton, he has energized many young and liberal voters around the country. New York holds its primary this Tuesday. (Photo by Spencer Platt/Getty Images)
Throngs of supporters listen as Democratic Presidential candidate Bernie Sanders speaks in Prospect Park to hear Democratic Presidential candidate Bernie Sanders speak on April 17, 2016 In the Brooklyn borough of New York City. While Sanders is still behind in the delegate count with Hillary Clinton, he has energized many young and liberal voters around the country. New York holds its primary this Tuesday. (Photo by Spencer Platt/Getty Images)

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Bernie or bust: a revolution in Philadelphia

Hillary Clinton hopes to unify her party and dispatch Trump in a general election, but some Bernie Sanders supporters are working to deregister Democratic voters, unless Sanders gets the nomination.

Bernie or bust: a revolution in Philadelphia

Hillary Clinton hopes to unify her party and dispatch Trump in a general election, but some Bernie Sanders supporters are working to deregister Democratic voters, unless Sanders gets the nomination.