Democratic Presidential Candidate Bernie Sanders Campaigns In Western Massachusetts [Getty Images]

AMHERST, MA - FEBRUARY 22: Democratic presidential candidate Sen. Bernie Sanders (D-VT) speaks at a rally on February 22, 2016 at the University of Massachusetts in Amherst, Massachusetts. Sanders is campaigning in the lead up to Super Tuesday primaries on March 1 when 11 states will vote. (Photo by Matthew Cavanaugh/Getty Images)

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