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(From left to right) Democratic presidential candidates Jim Webb, U.S. Sen. Bernie Sanders (I-VT), Hillary Clinton, Martin O'Malley and Lincoln Chafee take the stage for a presidential debate sponsored by CNN and Facebook at Wynn Las Vegas on October 13, 2015 in Las Vegas, Nevada.
(From left to right) Democratic presidential candidates Jim Webb, U.S. Sen. Bernie Sanders (I-VT), Hillary Clinton, Martin O'Malley and Lincoln Chafee take the stage for a presidential debate sponsored by CNN and Facebook at Wynn Las Vegas on October 13, 2015 in Las Vegas, Nevada.

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    What body language says about the candidates

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What body language says about the candidates

What did the body language of the Democratic presidential candidates reveal during the debate? CNN's Gary Tuchman reports.

What body language says about the candidates

What did the body language of the Democratic presidential candidates reveal during the debate? CNN's Gary Tuchman reports.