2010Flipped from DemocraticFinal resultsIncumbent defeated
2010 election for New Hampshire Senate District 18
New Hampshire State Senate · New Hampshire
Tom Deblois (R) won with 56.6% of the vote, defeating Betsi Devries (D) by 13.3 points, a seat Democrats won last time.
Tom DebloisRepublican · winner
56.6%8,439
Betsi DevriesDemocrat · incumbent
43.2%6,450
14,919 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET