Democratic presidential candidates U.S. Sen. Bernie Sanders and Hillary Clinton shake hands at the end of a presidential debate sponsored by CNN and Facebook at Wynn Las Vegas on October 13, 2015 in Las Vegas, Nevada.
Democratic presidential candidates U.S. Sen. Bernie Sanders and Hillary Clinton shake hands at the end of a presidential debate sponsored by CNN and Facebook at Wynn Las Vegas on October 13, 2015 in Las Vegas, Nevada.

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Sanders: "I'm going to be campaigning as hard as I can"

Senator Bernie Sanders talks to CNN's Manu Raju about his support for Hillary Clinton for President, and stopping Donald Trump.

Sanders: "I'm going to be campaigning as hard as I can"

Senator Bernie Sanders talks to CNN's Manu Raju about his support for Hillary Clinton for President, and stopping Donald Trump.