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FLORENCE, SC - FEBRUARY 25:  Senator Cory Booker (D-NJ) speaks and introduces Democratic Presidential candidate, former Secretary of State Hillary Clinton at a Breaking Down Barriers Town Hall February 25, 2016 at the Cumberland United Methodist in Florence, South Carolina.  Last Saturday, the South Carolina GOP Presidential Primary shattered records with 137,092 more votes cast than in any previous primary.  (Photo by Mark Makela/Getty Images)
FLORENCE, SC - FEBRUARY 25:  Senator Cory Booker (D-NJ) speaks and introduces Democratic Presidential candidate, former Secretary of State Hillary Clinton at a Breaking Down Barriers Town Hall February 25, 2016 at the Cumberland United Methodist in Florence, South Carolina.  Last Saturday, the South Carolina GOP Presidential Primary shattered records with 137,092 more votes cast than in any previous primary.  (Photo by Mark Makela/Getty Images)

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Who is Cory Booker?

Everything you need to know about the junior U.S. Senator from New Jersey.

Who is Cory Booker?

Everything you need to know about the junior U.S. Senator from New Jersey.