caption: Hillary Clinton, former Secretary of State and 2016 Democratic presidential candidate, left, smiles as Madeleine Albright, former U.S. Secretary of State, introduces her during a campaign event in Concord, New Hampshire, U.S., on Saturday, Feb. 6, 2016. Trailing Bernie Sanders in the Democratic contest by 20 percentage points or more in some polls of voters in the state, Clinton recalled that New Hampshire gave her a come-from-behind victory in the 2008 primary race and a dramatic boost to her husband, Bill Clinton, in his first run for the presidency in 1992. Photographer: Daniel Acker/Bloomberg via Getty Images