# New Hampshire Senate winner? In 2026 Updated: August 12, 2026 Category: Elections Tags: Senate HTML: /markets/elections/senate/new-hampshire-senate-winner/ ## Short Answer **Key takeaway.** Both the **model** and the **market** overwhelmingly agree that the Democratic party is most likely to win the New Hampshire Senate race in 2026, with only minor residual uncertainty. ## Key Claims (January 2026) **- - Primary research encountered an error, yielding no specific event data.** - Senator Shaheen's re-election would significantly boost Democratic victory chances. - Strong, popular Democratic primary winner needs broad support and fundraising. - Favorable national political climate greatly benefits the Democratic candidate. - Octagon **model** and current **market** **probability** show perfect alignment. ### Why This Matters (GEO) - AI agents extract claims, not arguments. - Improves citation probability in summaries and answer cards. - Enables fact stitching across multiple sources. ## Executive Verdict **Key takeaway.** Research failure yielded no data, yet **model** and **market** align at **12%** with 8.3x payout. ### Who Wins and Why | Outcome | Market | Model | Why | | --- | --- | --- | --- | | Republican party | 12.0% | 12.0% | New Hampshire remains a competitive swing state where Republicans can win. | | Democratic party | 89.0% | 88.0% | New Hampshire voters have recently favored Democratic candidates in federal elections. | ## Model vs Market | Outcome | Market Probability | Octagon Model Probability | | --- | --- | --- | | Republican party | 12.0% | 12.0% | | Democratic party | 89.0% | 88.0% | - Expiration: November 3, 2027 ## Market Behavior & Price Dynamics This prediction market, which will resolve to YES if a Republican wins the 2026 New Hampshire Senate race, displays a clear but non-volatile downward trend. The price has gradually declined from a starting point of $0.18 to its current price of $0.12, representing a drop in perceived probability from 18% to 12%. The price action has been a slow drift downward within a narrow $0.07 range over 363 data points, indicating a steady erosion of confidence in a Republican victory rather than a sharp reaction to a single event. The key price points are the opening high of $0.18 and the current floor around $0.11-$0.12, though these do not represent true resistance or support levels due to the market's activity, or lack thereof. The most critical factor in this analysis is the total traded volume of zero contracts. This indicates that the market is completely illiquid and that the price changes are not the result of buying and selling pressure from traders. Instead, the price movement is likely generated by the platform's automated market maker, which may be adjusting the price based on external data feeds, such as polling information. The decline from 18% to 12% directly correlates with the provided context, where recent polling shows the Democratic candidate, Chris Pappas, holding a significant 7-point lead. The lack of volume demonstrates an absolute absence of market conviction; no participants have been willing to financially back either side of the proposition. Ultimately, this chart reflects a sentiment of low and declining probability for a Republican win, a view that is consistent with external polling data. However, because there has been no trading activity, the price does not represent a true consensus or a "wisdom of the crowd." It is a passive reflection of publicly available information rather than an active price discovery mechanism. The market sentiment is therefore pessimistic for the YES side, but this sentiment is untested and lacks any financial backing from traders. ## Contract Snapshot Based on the provided page content, "New Hampshire Senate winner? Odds & Predictions 2026," there is insufficient information to determine the specific triggers for YES or NO resolution, key dates/deadlines, or any special settlement conditions for this Kalshi market. The provided text only states the market's topic and the election year. ## Market Discussion Discussions surrounding the "New Hampshire Senate winner" largely center on the 2022 U.S [[^]](https://www.pbs.org/newshour/politics/watch-live-new-hampshires-senate-candidates-face-off-in-2022-midterm-debate). Senate election, where Democratic incumbent Maggie Hassan defeated Republican challenger Don Bolduc [[^]](https://ballotpedia.org/United_States_Senate_election_in_New_Hampshire,_2022). Main viewpoints and arguments revolved around key issues like the economy, particularly inflation and gas prices, and abortion rights [[^]](https://www.cbsnews.com/live-updates/election-2022-new-hampshire-senate-results-maggie-hassan-don-bolduc-2022-11-08/). ## Market Data | Contract | Yes Bid | Yes Ask | Last Price | Volume | Open Interest | | --- | --- | --- | --- | --- | --- | | Democratic party | 88% | 89% | 89% | $66,137 | $43,608 | | Republican party | 11% | 12% | 12% | $96,989 | $66,596 | ## Why Was Research Data Not Found for This Query? Research Outcome | Failed (Error Code: 404) | Error Type | Not Found | Data Availability | No data extracted | **The research process encountered an issue, resulting in an error code 404** The research process encountered an issue, resulting in an error code 404. This error signifies that the requested resource or information could not be found. Consequently, no specific findings or data points could be extracted regarding John E. Sununu's polling margin among New Hampshire's 'undeclared' voters in head-to-head matchups against Chris Pappas, nor his brother Governor Chris Sununu's approval rating within that same demographic, as measured by the University of New Hampshire Survey Center's final pre-primary poll. The "Not Found" error prevents generation of requested data summaries. As a direct consequence of this inability to locate the necessary information, it is impossible to generate the summary, table data, or detailed paragraphs that would typically be derived from successful research. The system was unable to fulfill the request due to the absence of the required data. ## Why Was Information For This Research Query Unavailable? Research Status | Failed (Error 404) | Data Source Availability | Not Found (System Error) | Information Extracted | None (No Content) | **The research attempt for candidate financial data encountered a critical HTTP 404 error** The research attempt for candidate financial data encountered a critical HTTP 404 error. This technical issue indicates that the requested resource or information could not be located or accessed at the time of the query. Consequently, the research process encountered a critical retrieval failure, preventing access to any source material. No financial data was retrieved, preventing analysis or reporting. As a direct result of this retrieval failure, no specific findings, data points, or detailed content could be extracted or summarized. The system was unable to proceed with generating an answer regarding the final cash-on-hand disparity between the Republican nominee and Chris Pappas, or the nominee's primary spending on negative advertising. Recommendations include verifying the source or rephrasing the initial query. Therefore, no actionable insights, key metrics, or contextual paragraphs could be formulated based on the attempted research. Successful information retrieval is required for any further analysis. ## Why Are Current Research Findings Unavailable? Research Status | Failed | Error Code | 404 Not Found | Details | No data retrieved | **The research encountered a critical '404 Not Found' error during data retrieval** The research encountered a critical '404 Not Found' error during data retrieval. This status indicates that the requested information or resource could not be located or retrieved from its intended source during the research process. No specific data points or summarized content are currently available for presentation. Consequently, this report is unable to provide information on the sitting U.S. President's net approval rating specifically within New Hampshire or its correlation with historical midterm swings in the state. Further attempts are recommended to access the research source. It is advisable to reattempt the research query at a later time or to investigate the availability and accessibility of the intended research source. ## What Information Was Retrieved for This Research Request? Research Outcome | Error 404 - Not Found (Research System) | Data Availability | No data found (Research System) | Key Findings | No specific findings (Research System) | **The research query encountered an unrecoverable error, yielding no data** The research query encountered an unrecoverable error, yielding no data. Specifically, a 404 'Not Found' status was encountered, indicating that the system was unable to locate or retrieve any information pertinent to the requested topic,. As a result, no specific data points, key metrics, or detailed findings could be extracted from this research attempt. No data means no summary or analysis is currently possible. The inability to access the requested resources led to a complete lack of content for summary. Therefore, no further analysis or summarization based on research findings is possible at this time, as the initial data retrieval failed, reflecting the absence of research material,. ## What Research Findings Were Available For This Question? Research Outcome | Error 404 - Not Found (API Response) | Data Availability | No data retrieved | Key Information | Unavailable due to error | **Information retrieval for the research query was unsuccessful due to an API error** Information retrieval for the research query was unsuccessful due to an API error. The system encountered a '404 - Not Found' error from the API while attempting to gather information for the research query. This status indicates that the requested data could not be located or retrieved from the designated source. Consequently, no specific findings or data could be generated. As a direct result of this retrieval failure, the system was unable to generate any specific findings, data points, or summarized content pertinent to the inquiry. The system could not proceed with gathering the relevant information required for this research. ## What Could Change the Odds **The likelihood of a Democratic victory in the 2026 New Hampshire Senate election could increase if Senator Jeanne Shaheen decides to seek re-election, as incumbency often provides a significant advantage [[^]](https://ballotpedia.org/List_of_United_States_Senators_from_New_Hampshire).** A strong and popular Democratic primary winner, such as current U.S. Representative Chris Pappas, emerging with broad party support and effective fundraising, would also be a bullish catalyst. Furthermore, a positive national political climate for Democrats, characterized by high presidential approval ratings or successful legislative achievements, would benefit the Democratic candidate [[^]](https://ballotpedia.org/List_of_United_States_Senators_from_New_Hampshire). **Conversely, the 'NO' outcome, favoring a Republican win, could be significantly boosted if Senator Shaheen chooses not to run for re-election, creating a more competitive open seat [[^]](https://www.senate.gov/senators/Class_I.htm).** The entry and primary victory of a highly popular Republican candidate, such as former Governor Chris Sununu, would also substantially improve Republican prospects. A challenging national political landscape for Democrats, including low presidential approval or significant economic downturns, could also hurt the Democratic candidate's chances [[^]](https://www.senate.gov/senators/Class_I.htm). **Throughout the campaign, candidate performance, including strong debate showings and effective messaging, will play a crucial role.** Any missteps, gaffes, or scandals by either candidate, or significant internal party divisions, could also act as key catalysts in swaying voter sentiment between the September primary and the November general election [[^]](https://ballotpedia.org/List_of_United_States_Senators_from_New_Hampshire). ## Key Dates & Catalysts - **Expiration:** November 03, 2027 - **Closes:** November 03, 2027 ## Decision-Flipping Events - The likelihood of a Democratic victory in the 2026 New Hampshire Senate election could increase if Senator Jeanne Shaheen decides to seek re-election, as incumbency often provides a significant advantage [^] . - A strong and popular Democratic primary winner, such as current U.S. - Representative Chris Pappas, emerging with broad party support and effective fundraising, would also be a bullish catalyst. - Furthermore, a positive national political climate for Democrats, characterized by high presidential approval ratings or successful legislative achievements, would benefit the Democratic candidate [^] . ## Related Research Reports - [Which party will win the U.S. House?](/markets/elections/us-elections/which-party-will-win-the-u-s-house/) - [EU loses a member before 2030?](/markets/elections/international/eu-loses-a-member-before-2030/) - [Alabama Governor winner?](/markets/elections/governor/alabama-governor-winner/) - [Arkansas Governor winner?](/markets/elections/governor/arkansas-governor-winner/) ## Historical Resolutions No historical resolution data available for this series. ## Disclaimer This content is for informational and educational purposes only and does not constitute financial, investment, legal, or trading advice. Prediction markets involve risk of loss. Past performance does not guarantee future results. We are not affiliated with Kalshi or any prediction market platform. Market data may be delayed or incomplete. ### Data Sources & Model Transparency **Data Sources:** Octagon Deep Research aggregates information from multiple sources including news, filings, and market data. **Freshness:** Analysis is generated periodically and may not reflect the latest developments. Verify critical information from primary sources. ## Attribution Policy When quoting, summarizing, or reproducing Octagon content, attribute it to Octagon and link to the Octagon source URL: https://www.octagonai.co/markets/elections/senate/new-hampshire-senate-winner If a specific page was used, cite that page rather than only the site homepage.