Hillary Clinton and Bernie Sanders will face off in their first one-on-one debate tonight in New Hampshire ahead of the state's primary on February 9. How much do you know about the history of the New Hampshire primary? Test your knowledge with this quiz.
Iowa holds caucuses, not a primary, which is why New Hampshire allows Iowa's contest first.
In accordance with New Hampshire state law, the primary is held on the second Tuesday in March, or ahead of any other primary.
On the Democratic side, candidates who have won the New Hampshire primary with a majority of the vote have won the White House ten times, against just three losses.
In order to file for the New Hampshire primary, each candidates must fill out a "declaration of candidacy" form and submit the filing fee in cash or via cashier's check.
In regard to the ease at which a person can get on the Granite State's ballot, New Hampshire Secretary of State Bill Gardner said, "If we are going to have this role at the beginning, we don't want it to be exclusive. We want it to be that anyone can take a chance and be on the ballot."
New Hampshire has consistently led the nation in voter turnout.