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New Hampshire · 2026 forecast · New England region · Updated Oct 16, 2026

New Hampshire in 2026

New Hampshire elects a U.S. senator and a governor, all 2 members of the U.S. House, all 24 members of the State Senate and 386 of 400 members of the House of Representatives on November 3, 2026.

On the November 3 ballot: U.S. Senate · Governor · 2 U.S. House seats · 2 legislative chambers.

U.S. Senate
D 94%D 91%Chris Pappas vs. John E. Sununu
Governor
R 94%R 74%Cinde Warmington vs. Kelly Ayotte + 1 more
U.S. House
1.9 D · 0.1 R1.8 D · 0.2 RExpected seats of 2
New Hampshire State Senate
R 62%D 62%Chance of control · 24 of 24 seats up
New Hampshire House of Representatives
D 87%D 86%Chance of control · 386 of 400 seats up

U.S. House districts · New Hampshire

  • Solid D
  • Likely D
  • Lean D
  • Toss-up
  • Lean R
  • Likely R
  • Solid R
  • Projected flip (stripes: party holding it now)

Trifecta

Republican trifecta now

Republicans hold the governorship and every legislative chamber. A trifecta is one party holding all of them.

After the election

Dem. trifecta
4%
Divided
86%
Rep. trifecta
10%

Projected change: divided government is most likely (86%); 10% chance the Republican trifecta holds.

After the election

Dem. trifecta
19%
Divided
75%
Rep. trifecta
6%

Projected change: divided government is most likely (75%); 6% chance the Republican trifecta holds.

Chances come from the same simulations as the races, so outcomes are correlated. A governorship or chamber not on the ballot this year keeps its current party. Source: 99chambers forecast, run 56, updated Oct 16, 2026.

Statewide races

Every race decided by the whole state.

The New Hampshire environment

The environment New Hampshire's governor, statewide and legislative races run in, read from their polls against what the fundamentals expect. Its federal races run in the national environment.

National environment
D+9.5Election Day forecast, national House vote
New Hampshire state offices vs. the nation
−1.1± 4.2 (80% range) · 1 polled state race
New Hampshire state-office environment
D+8.41.1 pts more Republican than the nation

The polled state races behind it

← Runs more RepublicanRuns more Democratic →New Hampshire estimateWeighted, pulled toward the nationNew Hampshire GovernorPolls R+10.4 · 14% of the estimate

Over time

EvenD+5D+10Oct 10Oct 16New Hampshire D+8.4Nation D+9.5

Each polled race's average, minus what the fundamentals expect at the national environment, in national-environment points (a dot right of center runs more Democratic than expected). Readings are weighted by poll precision and office (governor most, then other statewide races, the Senate, legislative and House races), centered on the national average and pulled toward zero, so a thinly polled state stays near the nation. Governor, statewide and legislative races use the New Hampshire environment in full; Senate and House races 0% of it. Each race's own polls are left out of the environment it uses.

U.S. House

2 districts. The national House forecast.

Solid D1

Likely D1

Solid D1

Likely D1

Columns follow the chance of winning: Toss-up 40–60%, Lean 60–80%, Likely 80–95%, Solid 95%+. The square shows who holds the seat now (■ Democrats, ■ Republicans).

Manchester-Nashua

2 races
DistrictCandidatesChance of winning (D · R)Avg. marginRatingLeanPolls
NH-1
● Stefany Shaheen● Anthony DiLorenzo
93%7%
81%19%
D+9.7D+5.8Likely DLikely DD+31
NH-2
● Maggie GoodlanderINC● Lily Tang Williams
>99%<1%
95%5%
D+19.3D+15.4Solid DSolid DD+58

Lean: how much more Democratic (D+) or Republican (R+) the place voted for president than the nation (2024 weighted 75%, 2020 25%). Ratings follow the chance of winning: Toss-up 40–60%, Lean 60–80%, Likely 80–95%, Solid 95%+. INC = incumbent running. D flip / R flip: another party is favored (60% or more) over the party holding the seat now (hover for the chance it changes parties); Flip risk: the seat is a toss-up (40–60%).

New Hampshire General Court

Chance of control after November 3, and how each chamber's races rate.

New Hampshire State SenateProjected flip

Dem.
38%
Rep.
62%

Avg. 12 D – 12 R seats · 13 for control · R supermajority now: 5% it holds

Dem.
62%
Rep.
38%

Avg. 14 D – 11 R seats · 13 for control · R supermajority now: 2% it holds

Full forecast

New Hampshire State Senate ratings

2 seats projected to flip: 2 R→D. 2 more are toss-ups that could change parties (flip risk).

3 seats projected to flip: 3 R→D. 1 more is a toss-up that could change parties (flip risk).

Solid D8

Likely D1

Lean D1

Solid R2

Columns follow the chance of winning: Toss-up 40–60%, Lean 60–80%, Likely 80–95%, Solid 95%+. The square shows who holds the seat now (■ Democrats, ■ Republicans). flip: projected to change parties, in the color of the party favored to gain it. risk: a toss-up (40–60%) that could change parties. Faded: no major-party opponent. Every race.

New Hampshire House of RepresentativesProjected flipProjected flip

Dem.
87%
Rep.
13%

Avg. 235 D – 165 R seats · 201 for control · D two-thirds supermajority 15%

Dem.
86%
Rep.
14%

Avg. 234 D – 166 R seats · 201 for control · D two-thirds supermajority 15%

386 of 400 seats up; 14 holdovers.

Full forecast

New Hampshire House of Representatives ratings

8 seats projected to flip: 5 R→D, 1 Ind.→R, 1 D→R, 1 Ind.→D. 7 more are toss-ups that could change parties (flip risk).

8 seats projected to flip: 5 R→D, 2 Ind.→R, 1 D→R. 13 more are toss-ups that could change parties (flip risk).

Columns follow the chance of winning: Toss-up 40–60%, Lean 60–80%, Likely 80–95%, Solid 95%+. The square shows who holds the seat now (■ Democrats, ■ Republicans, ■ another party). flip: projected to change parties, in the color of the party favored to gain it. risk: a toss-up (40–60%) that could change parties. Underlined: two candidates of one party in November. Faded: no major-party opponent. Every race.

Closest legislative races

How New Hampshire votes

Election rules that differ from the usual party primary and plurality win.

400-member House

The House has 400 members, one of the largest legislatures in the world. Districts are named by county and number ('Hillsborough 12'); many elect several members, and voters pick as many candidates as there are seats.

Two-year governor's term

The governor is elected every two years, so the office is on the ballot in 2026.