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Could Bernie Sanders or Joe Biden take the black vote from Clinton?

The African-American vote, usually an afterthought until later in the race, is now one of the biggest factors in the Democratic primary.

Presidential hopeful Bernie Sanders and Cornell William Brooks, president and CEO of the NAACP walk up the steps of the Lincoln Memorial during the march from Selma, Ala. to Washington, DC Sept. 15, 2015. (Photo by Brendan Smialowski/AFP/Getty)
Presidential hopeful Bernie Sanders and Cornell William Brooks, president and CEO of the NAACP walk up the steps of the Lincoln Memorial during the march from Selma, Ala. to Washington, DC Sept. 15, 2015. AFP/Getty Images

Alex Seitz-Wald

Perry Bacon