NH Legislature 2026

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Senate District 3

Lakes Region · currently held by R (Mark McConkey, running)

Forecast

89%
chance Mark McConkey (R) wins
Democrat
Bobbi Boudman
Republican
Mark McConkey
Rating
Likely R
Expected margin
R+9.0 (90% range R+21.2 to D+3.2)
Chance of flipping
11.1%
Tipping-point chance
8.4% (chance this seat is the 13th most Democratic, deciding control)

How the forecast was built

Statewide generic legislative margin (environment)D+2.9
+ District partisan lean-9.0
= Fundamentals before candidatesR+6.1
+ Incumbency advantage-3.0
+ Incumbent's past over-performance (shrunk)+0.1
Final expected marginR+9.0

No public poll of this district exists; the forecast is fundamentals only. District-level error SD 6.0 pts; total with statewide and regional error ≈ 7.5 pts.

Inputs

Partisan lean (exact by town)

RaceDistrictStatewideLeanWeight
2024 PresidentR+4.6D+2.8-7.40.4
2024 GovernorR+16.7R+9.5-7.10.15
2022 U.S. SenateR+0.3D+9.3-9.60.2
2022 GovernorR+26.2R+15.8-10.40.1
2020 PresidentR+0.8D+7.4-8.20.15

Last Senate result (2024): R+13.4 vs a statewide legislative environment of R+2.6, incumbency removed (-0.0) → lean -10.8, blended at 30%.

Past results in this district (current lines)

2024 — party margin R+13.4

R Mark McConkey21,058✓
D Bill Marsh16,066

2022 — party margin R+17.0

R Jeb Bradley17,336✓
D Bill Marsh12,309