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.
New Hampshire · 2026 forecast · New England region · Updated Oct 16, 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. House districts · New Hampshire
Trifecta
Republican trifecta now
Republicans hold the governorship and every legislative chamber. A trifecta is one party holding all of them.
After the election
Projected change: divided government is most likely (86%); 10% chance the Republican trifecta holds.
After the election
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.
Every race decided by the whole state.
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.
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.
2 districts. The national House forecast.
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
| District | Candidates | Chance of winning (D · R) | Avg. margin | Rating | Lean | Polls |
|---|---|---|---|---|---|---|
| NH-1 | ● Stefany Shaheen● Anthony DiLorenzo | D+9.7D+5.8 | D+3 | 1 | ||
| NH-2 | ● Maggie GoodlanderINC● Lily Tang Williams | D+19.3D+15.4 | D+5 | 8 |
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%).
Chance of control after November 3, and how each chamber's races rate.
New Hampshire State SenateProjected flip
Avg. 12 D – 12 R seats · 13 for control · R supermajority now: 5% it holds
Avg. 14 D – 11 R seats · 13 for control · R supermajority now: 2% it holds
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).
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
Avg. 235 D – 165 R seats · 201 for control · D two-thirds supermajority 15%
Avg. 234 D – 166 R seats · 201 for control · D two-thirds supermajority 15%
386 of 400 seats up; 14 holdovers.
Full forecast8 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).
Solid D87
Likely D20
Lean D12
Toss-up16
Lean R14
Likely R19
Solid R35
Solid D65
Likely D30
Lean D21
Toss-up25
Lean R14
Likely R23
Solid R25
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.
Election rules that differ from the usual party primary and plurality win.
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.
The governor is elected every two years, so the office is on the ballot in 2026.