NH-1 House 2026
Toss-up — Open Seat

NH-1 House Race 2026

Open Seat — Pappas (D) running for Senate, Dover-Rochester Seacoast district

Key Findings
  • NH-1 is rated Toss-up — one of the most competitive House races of the 2026 cycle.
  • Democratic Rep. Chris Pappas is one of the most targeted House incumbents by Republicans, who see the district as a potential pickup.
  • Suburban voter realignment since 2018 has made New Hampshire's competitive congressional districts bellwethers for how college-educated voters respond to the national political environment.
  • With Republicans holding a narrow House majority, every competitive district race contributes to whether Republicans expand their margin or Democrats recapture the chamber in 2026.
Race Status — 2026

NH-1 is a genuine Toss-up open seat. Chris Pappas held the seat for three terms as a moderate Democrat, but his departure removes the most important electoral advantage — incumbency. Trump's 2024 New Hampshire win signals Republicans are competitive in this state. Candidate quality and the broader national environment will determine the outcome. Full House overview →

Race Overview

FactorDetail
Prior incumbentChris Pappas (D) — held seat 2019–2026; running for NH Senate seat (Shaheen retirement)
2024 Presidential (NH statewide)Trump +2 — first time Trump carried NH
Prior House resultsPappas won by 6–10 pts in recent cycles with incumbency advantage
Cook RatingToss-up
Sabato RatingToss-up
Key citiesDover, Rochester, Somersworth, Portsmouth (partial), Seacoast towns, Lakes Region
Voter compositionLarge independent (undeclared) bloc; suburban growth from Boston commuters; rural NH towns
Nh 1

The Candidates

Republican — Open Seat Contender

TBD Republican

Republicans are targeting NH-1 as a top pickup opportunity following Trump's 2024 New Hampshire win. A candidate with moderate positioning — appealing to independent voters while maintaining base support — is the ideal profile. NH Republicans have historically run strong candidates in Strafford and Rockingham County who can speak to small business, taxes, and the opioid crisis.

Opportunities: Open seat, Trump won NH in 2024, midterm if national environment is neutral.
Challenges: NH independents punish extreme candidates; educated Seacoast suburbs trending D.
Democrat — Open Seat Contender

TBD Democrat

Democrats need to find a candidate who can replicate Pappas's moderate coalition-building appeal. Pappas was a centrist Democrat who regularly won independents; his departure opens a recruitment challenge. A Dover or Portsmouth-area candidate with strong community ties and a moderate economic message would be the template. DCCC will defend this seat as a hold target.

Opportunities: Midterm environment if anti-MAGA sentiment rises; college-educated suburb growth; prior D hold.
Challenges: No incumbent; Trump carried NH in 2024; candidate must win independents.

Why NH-1 Is a Toss-up

No Incumbent Advantage

Incumbency is the single most powerful predictor of House race outcomes. Pappas won NH-1 in three consecutive cycles largely on the strength of a known, moderate brand. With both parties starting from scratch, the race is defined by candidate quality and national conditions — a genuine coin flip environment where the winner will likely define the seat's future partisan lean.

New Hampshire Independents

New Hampshire has the largest share of "undeclared" (independent) voters of any state. These voters can register same-day and vote in either party's primary, then swing dramatically in general elections. They backed Trump in 2024 after supporting Biden in 2020 and Obama earlier. Any NH-1 winner must build a cross-partisan coalition — straight-party enthusiasm alone cannot win this seat.

Suburban-Rural Divide

NH-1's geography creates an internal split: the Seacoast corridor (Dover, Portsmouth, coastal towns) is increasingly suburban and well-educated, trending Democratic as Boston-area professionals relocate. But the Lakes Region and interior Strafford/Carroll counties are rural New England towns with a more traditional, independent-to-Republican lean. Winning requires credible appeal in both environments.

District Election History

YearRepublicanDemocratMarginNotes
2024 Russell Prescott (R) ~44% Chris Pappas (D, inc.) ~56% D +12 Pappas holds with large margin; running for Senate 2026
2022 Karoline Leavitt (R) 45.0% Chris Pappas (D, inc.) 55.0% D +10 Pappas wins comfortably; Leavitt later joins Trump admin
2020 Matt Mowers (R) 46.8% Chris Pappas (D, inc.) 53.2% D +6.4 Pappas holds in presidential year
2018 Eddie Edwards (R) 46.9% Chris Pappas (D) 53.1% D +6.2 Pappas flips open seat in blue wave
2016 Frank Guinta (R, inc.) 48.3% Carol Shea-Porter (D) 44.5% R +3.8 Guinta holds; seat has swapped parties 3x since 2010

Key Issues in NH-1

Opioid & Fentanyl Crisis

New Hampshire was among the hardest-hit states in the opioid epidemic on a per-capita basis. Fentanyl overdose deaths remain a serious public health concern in Strafford and Rockingham counties. Both parties have tried to claim ownership of the issue — Republicans emphasizing border security and fentanyl supply chains, Democrats emphasizing treatment funding and healthcare access.

Housing Affordability

The Seacoast area has seen significant housing price inflation as Boston-area workers relocate to lower-tax New Hampshire. Dover and Rochester have become significantly more expensive. This creates economic anxiety for existing residents — particularly renters and young families — while also bringing in new, educated residents who are part of the growing Democratic coalition in these areas.

Taxes & Small Business

New Hampshire's no-income-tax, no-sales-tax model is a deep part of state identity. Small business owners — plentiful in NH-1's service and tourism economy — are sensitive to federal tax policy, regulatory costs, and healthcare expenses for employees. Candidates who speak credibly to small business concerns while addressing healthcare costs tend to outperform in the district.

National Context & Race Outlook

NH-1 is a competitive Lean Democratic seat covering Manchester and the Seacoast. The House 2026 overview tracks all races. Watch the generic ballot and Trump approval. Economic conditions and healthcare drive Granite State voters. New Hampshire is also a key swing state.

Voters in New Hampshire polling station
NH-1 covers Manchester and the Seacoast — the most competitive district in the Granite State | USPollingData
Related Analysis
New Hampshire State Polling → House 2026 Overview → House Majority Math → All Polling Data — Trackers, Crosstabs & State Polls →
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Generic Ballot Democrats48.1% Republicans41.1% D+7 Trump Approval Approve39% Disapprove58% Senate D47 R53 House D213 R222 Generic Ballot Tracker Trump Approval Senate 2026 House 2026 Latest Analysis