Updated Oct 16, 2026, 1:45 PM ET
Senate · 3 November 2026

New Hampshire Senate 2026

89.2% DChris Pappas leads TruthIndex™Likely D
Polymarket
88.5%
Kalshi
89.5%
Spread
2.0 pts
24h
–
7 days
−0.1
Updated
Oct 16, 2026, 1:45 PM ET
Latest coverage

Live News

Recent coverage for New Hampshire Senate.

  1. A Trump-backed Senate nominee is now ...

    Chris Pappas officially filed Monday for New Hampshire's open U.S. Senate seat, pitching himself as a bipartisan candidate focused on affordability, housing

    www.facebook.comSocial postPappas
  2. Sununu opposed crackdowns on corporate tax shelters

    The Republican later served on the boards of tax-dodging corporations.

    American Journal NewsSununu
  3. Former New Hampshire GOP Senate candidate endorses Pappas over Sununu

    Former Republican congressional candidate Don Bolduc on Friday backed Democratic Rep. Chris Pappas in New Hampshire’s open Senate race.

    The HillPappas
  4. John Sununu Made Millions Lobbying for Telecom Companies After Voting to Let Them Spy on Americans

    Republican U.S. Senate candidate from New Hampshire, John E. Sununu voted for the USA Patriot Act, then later made millions off of telecom companies who

    MeidasTouch NetworkSununu
  5. Chris Pappas for Senate Unveils “Country Before Party” Steering Committee of Republicans and Independents Who Are Endorsing the Campaign

    Chris Pappas has been ranked as one of the most bipartisan members of Congress and is a member of the bipartisan House Problem Solvers Caucus.

    chrispappas.orgCampaignPappas
More coverage 9
  1. In New Hampshire Senate race, was Chris Pappas dishonest about his links to Amazon?

    “Chris Pappas voted to raise taxes 68 times. Every tax vote he’s made was to raise taxes.”

    PolitifactSununu
  2. Christopher Pappas running in the 2026 General US Senate election

    Chris Pappas has served as a U.S. Representative since 2018 and previously served on New Hampshire's Executive Council.

    citizenscount.orgPappas
  3. U.S. Senate Candidates John Sununu and Rep. Chris Pappas Speak At Forum in Salem

    Democratic Rep. Chris Pappas and Republican John E. Sununu at forum Wednesday in Salem.

    indepthnh.orgSununuPappas
  4. 'I Burned Through My Lifelines:' Pappas' Game Show Cameo Gets Campaign Rerun

    Chris Pappas’ 2011 appearance on “Who Wants to Be a Millionaire?” is returning to your TV screen.

    NH JournalSununu
  5. At Salem Debate, Chris Pappas Shows He’s the Only Candidate Who Will Stand Up to Donald Trump

    PAPPAS: “This is a critical midterm election where we have to reestablish checks and balances in Washington D.C.

    chrispappas.orgCampaignPappas
  6. A political Rorschach test: Pappas's DC record is up for interpretation in Senate race | State news

    As Democrat Chris Pappas runs for U.S. Senate, his four terms representing New Hampshire’s 1st District in Congress are his main credential.

    keenesentinel.comPappas
  7. Early voting surges ahead of midterms

    “So we’re going to elect a strong Republican majority in the House and Senate, and I think we have a really good chance," Trump said Wednesday in Arizona.

    Spectrum Local NewsPappas
  8. Apart on stage, Pappas and Sununu still trade jabs

    Democrat Chris Pappas of Manchester and Republican John E. Sununu of Rye appeared separately on stage 20 minutes apart, but each still managed to slip in a dig during a U.S.

    Manchester Union leaderPappas
  9. Impeach Trump? Swing State Democratic Senate Candidates Diverge

    New Hampshire Representative Chris Pappas, who is facing a close contest against former Senator John Sununu in the race to succeed Democratic Senator Jeanne Shaheen, told Manchester-based news station WMUR he believes…

    NewsweekSununu

Chris Pappas, last 60 days

How to read this chart

The green line is the TruthIndex™, the chance of this outcome. It combines the prices on both venues and gives more weight to the venue with more money in its order book. The two thinner lines are Polymarket's and Kalshi's own prices, and the grey band between them shows how far apart the two venues are.

The pale bands behind the lines are the rating zones (Toss-up, Lean, Likely and Safe), so you can see when the race moved from one rating to another. Move along the chart, or use the arrow keys, to read the values for each day.

More in Methodology
TruthIndex™PolymarketKalshiGap between the venuesRating zones

All outcomes

OutcomeTruthIndex™PolymarketKalshiSpread24h
DChris Pappas 89.2% 88.5% 89.5% 1.0 pts –
RJohn E. Sununu 11.4% 12.5% 10.5% 2.0 pts –

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Candidates & Background

Chris Pappas

Chris Pappas

Democratic U.S. Representative for New Hampshire's 1st congressional district (since 2019)

Chris Pappas, a Democrat representing New Hampshire's 1st congressional district since 2019, is his party's nominee for the state's open U.S. Senate seat in 2026.

Born 1980 · Manchester, New Hampshire
John E. Sununu

John E. Sununu

Republican

John E. Sununu, a Republican who represented New Hampshire in the US House and then the Senate from 1997 to 2009, seeks his former Senate seat in 2026.

Born 1964 · Boston, Massachusetts

Margin of victory

Each venue's margin market, shown on its own: the two venues set their ranges differently.

Kalshi286 contracts

New Hampshire Senate margin of victory

Yes
6.7%
Source: Kalshi market

Kalshi45.7K contracts

New Hampshire Senate margin of victory

Pappas, 2+ pts
84.5%
Pappas, 4+ pts
73.5%
Pappas, 6+ pts
62.5%
Pappas, 8+ pts
46.5%
Pappas, 10+ pts
33.5%
Pappas, 12+ pts
19.5%
Pappas, 14+ pts
13.0%
Pappas, 16+ pts
7.0%
Pappas, 18+ pts
4.0%
Source: Kalshi market

Polymarket$14.9K traded

New Hampshire Senate Election Margin of Victory

Pappas 18%+
4.2%
Pappas 15-18%
5.3%
Pappas 12-15%
11.3%
Pappas 9-12%
20.0%
Pappas 6-9%
20.0%
Pappas 3-6%
16.5%
Pappas 0-3%
11.3%
Sununu 0-3%
7.5%
Sununu 3-6%
3.2%
Sununu 6%+
4.5%
Source: Polymarket market

Each venue's market

Polymarket$334.4K traded

Prices which party wins.

Chris Pappas: Counted · bid 88.0% / ask 89.0% · $62.6K within 5 pts

This market will resolve according to the winner of the 2026 midterm New Hampshire U.S. Senate election, inclusive of any run-offs. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. The candidates may be named in the contract for the convenience of traders. In the event that any named candidate is replaced as the nominee of their respective party prior to election day, the name in the contract will be updated and the market will resolve based on the replacement nominee of the party. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

Full rules on Polymarket

Kalshi2.1M contracts traded

Prices which party wins.

Chris Pappas: Counted · bid 89.0% / ask 90.0% · $138.0K within 5 pts

Contract shown: Chris Pappas

If a representative of the Democratic party is sworn in as a Senator of New Hampshire for the term beginning in 2027, then the market resolves to Yes.

This market is eligible for accelerated determination after a consensus of media organizations project the winner. See full rules for details.

Full rules on Kalshi