Bill Clinton

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Former president Bill Clinton and former Arkansas coach Eddie Sutton, right, talk during the second half of an NCAA college basketball game between Arkansas and LSU on Saturday, Feb. 15, 2014, in Fayetteville, Ark. (AP Photo/Gareth Patterson)

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Eddie Sutton, left, former President Bill Clinton, center, and Nolan Richardson, right, call the "Hogs" during halftime of an NCAA college basketball game between Arkansas and LSU on Saturday, Feb. 15, 2014, in Fayetteville, Ark. (AP Photo/Gareth Patterson)

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Former U.S. President and UN special envoy to Haiti Bill Clinton listens to members of the Union Des Apotres – Prodev School in Cite Soleil, Port-au-Prince, Haiti, Monday Feb. 17, 2014. Clinton is in Haiti to visit several projects that focus on agriculture and the environment, including the Union Des Apotres – Prodev solar-powered school that his private foundation has assisted and a training school for Haitian coffee farmers. (AP Photo/Dieu Nalio Chery)(AP Photo/Dieu Nalio Chery)

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Attacks by Sen. Rand Paul, Kentucky Republican, on former President Bill Clinton as a "sexual predator" are seen by many as an indirect strike on Hillary Rodham Clinton's prospective 2016 presidential candidacy. (Associated Press photographs)