2016Flipped from RepublicanFinal results
2016 election for U.S. Senate in New Hampshire
U.S. Senate · New Hampshire
Margaret Wood Hassan (D) won with 48.0% of the vote, defeating Kelly Ayotte (R) by 0.1 points, a seat Republicans won last time.
Margaret Wood HassanDemocrat · winner
48.0%354,649
Kelly AyotteRepublican
47.8%353,632
Aaron DayIndependent
2.4%17,742
Brian ChabotLibertarian
1.7%12,597
739,140 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Margaret Wood HassanKelly Ayotte
$18.7M
Raised by the campaign
$14M
$18.6M
Spent by the campaign
$15M
$133.5K
Cash on hand
$176.2K
Campaign money: FEC, through Dec 31, 2016.
Source: FEC campaign filingsUpdated Dec 31, 2016
The candidates
Margaret Wood Hassan (D)Kelly Ayotte (R)
Also on the ballot: Aaron Day (Independent), 2.4%; Brian Chabot (Libertarian), 1.7%