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Hillary Rodham Clinton answers questions at a news conference at the United Nations, Tuesday, March 10, 2015.
Hillary Rodham Clinton answers questions at a news conference at the United Nations, Tuesday, March 10, 2015.

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    Poll: Hillary tops the field

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Poll: Hillary tops the field

CNN's Jeff Zeleny and Peter Hamby analyze Hillary Clinton's early dominance among Democrats with John King.

Poll: Hillary tops the field

CNN's Jeff Zeleny and Peter Hamby analyze Hillary Clinton's early dominance among Democrats with John King.