Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., speaks during a rally Friday, March 11, 2016, in Summit, Ill.
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See presidential candidate Bernie Sanders in Summit Friday rallying voters in advance of Tuesday's primary.
Beena David of Chicago, holds a drawing of Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., while standing in line before a campaign rally for Sanders Friday, March 11, 2016, in Summit, Ill.
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Supporters line up before a campaign rally for Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., Friday, March 11, 2016, in Summit, Ill.
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Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., waves goodbye after speaking at a rally Friday, March 11, 2016, in Summit, Ill.
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Supporters cheer as Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., arrives during a rally Friday, March 11, 2016, in Summit, Ill.
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Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., speaks during a rally Friday, March 11, 2016, in Summit, Ill.
ASSOCIATED PRESS
Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., speaks during a rally Friday, March 11, 2016, in Summit, Ill.
ASSOCIATED PRESS
Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., speaks during a rally Friday, March 11, 2016, in Summit, Ill.
ASSOCIATED PRESS
Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., speaks during a rally Friday, March 11, 2016, in Summit, Ill.
ASSOCIATED PRESS
Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., speaks during a rally Friday, March 11, 2016, in Summit, Ill.
ASSOCIATED PRESS
Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., speaks during a rally Friday, March 11, 2016, in Summit, Ill.
ASSOCIATED PRESS
Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., speaks during a rally Friday, March 11, 2016, in Summit, Ill.
ASSOCIATED PRESS