A Democrat, Hassan was elected to the Senate in the 2016 election.
She was the 81st Governor of New Hampshire, from 2013 to 2017.Born in Boston, Massachusetts, Hassan is a graduate of Brown University and earned a J.D.
from the Northeastern University School of Law.
After graduating from law school in 1985, Hassan was a healthcare executive in Boston.
Hassan first ran for the New Hampshire Senate in 2002 after Democratic Party leaders recruited her.
She lost to incumbent Senator Russell Prescott but ran against Prescott again in 2004 and won.
Hassan was elected to a total of three two-year terms, representing New Hampshire's 23rd district from January 2005 to December 2010.
Hassan became the Majority Leader in the State Senate in 2008 before losing re-election in a 2010 rematch with Prescott.Hassan declared her candidacy for governor in October 2011.
Hassan defeated former State Senator Jacalyn Cilley in the Democratic primary and faced attorney and Republican nominee Ovide M.
Lamontagne in the general election.
Hassan won with 55 percent of the vote, becoming the state's second female governor.
Hassan won re-election in 2014.
Since becoming Governor of New Hampshire, Hassan was elected Vice Chair of the Democratic Governors Association and served as a superdelegate at the Democratic National Convention.In 2016, Hassan ran for the U.S.
Senate and narrowly defeated Kelly Ayotte, the Republican incumbent, by approximately a thousand votes (about 0.1 percent of the vote).
She is serving with Jeanne Shaheen, another former governor; New Hampshire's Senate delegation shares this distinction with that of Virginia (composed of former governors Mark Warner and Tim Kaine).
Hassan and Shaheen are the only two women in American history to be elected as both a Governor and a Senator.