FILE - In this May 17, 2016 file photo, Democratic presidential candidate Sen. Bernie Sanders, I-Vt., greets supporters after speaking at a rally in Carson, Calif. Bernie Sanders' campaign is mining deep into voter data from Hispanic enclaves, scouting for hidden supporters in an effort to undercut Hillary Clinton in a contest that he has vowed to fight to the end. Clinton ran up a 2-1 advantage with Hispanics in her 2008 win in California over Barack Obama and is making a strong push to do that again. (AP Photo/Jae C. Hong)
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