2016 New Hampshire primary

Republican presidential candidate Donald Trump speaks to supporters during a primary night rally in Manchester, N.H.

Ohio Gov. and Republican presidential candidate John Kasich, joined by his wife, Karen, speaks to supporters during a primary election watch party in Concord, N.H., after finishing second to Donald Trump.

Democratic presidential candidate Hillary Clinton speaks as former President Clinton applauds at her New Hampshire primary campaign rally in Hooksett.

Democratic presidential candidate Bernie Sanders onstage during a primary night rally in Concord, N.H.

Republican presidential candidate Donald Trump visits a polling station in Manchester, N.H.

Republican presidential candidate Ted Cruz leaves a campaign stop at the Red Arrow Diner in Manchester.

Republican presidential candidate Sen. Marco Rubio speaks with Stephanie Tespas outside Gilbert Hood Middle School in Derry.

Supporters of Bernie Sanders cheer at a rally in Concord as they watch primary results on TV.

Cesare Del Vaglio, a campaign volunteer for Donald Trump, makes phone calls to New Hampshire voters at Trump’s campaign office in Manchester.

Democratic presidential candidate Sen. Bernie Sanders walks through downtown Concord, N.H.

Republican presidential candidate Donald Trump visits a polling station as voters cast their primary day ballots in Manchester.

Republican presidential candidate Jeb Bush thanks his supporters outside the polling place at Webster School in Manchester.

Voters in Nashua, N.H., walk to their polling place to cast their ballots in Tuesday’s primary.

A Bernie Sanders supporter arrives with campaign signs outside the town hall in Canterbury, N.H.

Democratic presidential candidate Hillary Clinton greets voters carrying Donald Trump signs outside a polling station in Nashua, N.H., on Tuesday.

Voters wait in line at a fire station in Loudon, N.H.

Sen. Marco Rubio boards his campaign bus after stopping to thank supporters outside a polling place in Manchester, N.H., on Feb. 9.

Supporters and detractors of Sen. Marco Rubio, including one in costume to resemble a robot, meet in the snow in Manchester, N.H.

Supporters of various presidential candidates hold signs outside a polling place at the Webster School in Manchester, N.H. Tuesday is the 100th anniversary of the New Hampshire primariy, the “first in the nation’ test for presidential candidates from both parties.

A man attempts to take a selfie with Republican candidate Gov. Chris Christie as he greets supporters outside the Webster School polling place in Manchester, N.H.

An election worker hands out stickers to voters afer they cast their ballots in Belmont, N.H.

Wayne Peirce shovels snow off the sidewalk at a polling station in preparation for opening in Laconia, N.H.

A voter leaves Canterbury Town Hall in Canterbury, N.H., after casting her ballot in Tuesday’s presidential primary.

A voter in Nashua, N.H., leaves a polling site after casting his ballot at dawn.