$329.12
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$329.12
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Trader mode: Actionable analysis for identifying opportunities and edge
This market will resolve according to the party of the candidate who wins the CA-13 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 2026. A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed a
Traders on prediction markets currently give Democrats a strong advantage to hold California's 13th congressional district in the 2026 election. The market implies a roughly 6 in 7 chance that a Democratic candidate wins the seat. This shows a high degree of confidence in the party's continued control of this district.
The district, covering parts of the San Joaquin Valley including Modesto, is currently represented by Democrat John Duarte. He narrowly won the seat in 2022 by just 564 votes, making it one of the most competitive House races in the country that cycle. However, the market's current high probability for Democrats likely stems from two factors. First, the 2024 presidential election year electorate may favor Democrats in this district more than the 2022 midterm electorate did, potentially strengthening Duarte's position if he runs again. Second, California uses a nonpartisan "top-two" primary system, where the two candidates with the most votes advance to the general election regardless of party. This sometimes leads to two candidates from the same party competing in November, which can lock one major party out entirely. The market may be pricing in a scenario where Democrats consolidate support early.
The primary election in March 2026 is the first major event. The candidate lineup and the results of this primary will signal whether a Republican even makes it to the November ballot or if two Democrats advance. Watch for retirement announcements from Representative Duarte, which could open the race and change the odds significantly. National political trends in 2025 and 2026, such as the president's approval rating, will also shape this local race.
Prediction markets have a solid record forecasting U.S. House election winners, especially as Election Day nears and more information is available. For an election this far out, the 86% probability is more of a snapshot of current assumptions than a final forecast. The low trading volume on this specific contract so far means the price is less stable and could shift easily with new information. Markets are good at aggregating known political fundamentals, like district partisanship, but they can be slower to price in unexpected events like a scandal or a surprise retirement.
The Polymarket contract for California's 13th Congressional District shows an 86% probability that a Democrat will win the seat in the 2026 midterm election. This price indicates the market views a Democratic victory as the overwhelming favorite. However, with only $0 in volume reported across two markets, this price is based on extremely thin liquidity. The lack of trading activity means the current odds are not established by significant capital and could shift dramatically with even minor new information or participant interest.
The high confidence in a Democratic win is rooted in the district's recent electoral history and partisan composition. CA-13, covering parts of the San Joaquin Valley including Modesto, is currently represented by Democratic Congressman John Duarte. Duarte won the seat in 2022 by a margin of just 564 votes, making it the closest congressional race in the nation that cycle. Despite that narrow victory, the district's underlying voter registration and performance in top-of-ticket races favor Democrats. President Biden carried the district by an 11-point margin in 2020. The market pricing suggests traders believe the district's Democratic lean in presidential years will solidify in a midterm cycle where Duarte, now a freshman incumbent, may face a strong challenge in a rematch against former Assemblyman Adam Gray.
The primary risk to the current pricing is the inherent volatility of a low-liquidity market. Any actual trading could move the price significantly. Fundamentally, the odds could shift based on candidate recruitment and the national political environment. If Representative Duarte, a moderate Democrat who has broken with his party on key votes, decides not to seek re-election, the open seat could be perceived as more competitive. Republican recruitment of a high-profile challenger could also tighten the race. The 2026 national political climate, which is currently uncertain, will be a major factor. A strong Republican wave year, perhaps following the 2024 presidential election, could make this district competitive again, but the market currently assigns a low probability to that scenario.
AI-generated analysis based on market data. Not financial advice.
This prediction market focuses on the outcome of the 2026 U.S. House of Representatives election for California's 13th congressional district. The market will resolve based on the party affiliation of the candidate who ultimately wins the seat in the November 4, 2026, midterm election. The district, which includes parts of the San Joaquin Valley, is a competitive political battleground. The 2024 election for this seat was one of the closest in the nation, decided by a margin of just 564 votes. This narrow result, combined with the district's demographic shifts and its importance in determining control of the House of Representatives, makes the 2026 contest a focal point for political analysts and forecasters. Interest in this market stems from its potential to serve as a national bellwether for partisan control and to reflect broader trends in California's Central Valley politics. The outcome will be influenced by candidate recruitment, national political dynamics, and local economic conditions, particularly in the agricultural sector.
California's 13th congressional district, as currently configured, was created following the 2020 census. It encompasses portions of the San Joaquin Valley, including all of Merced County and parts of Stanislaus, Madera, Fresno, and San Joaquin counties. The region has a long history of competitive politics, often swinging between the parties. Prior to the 2022 election, the area was represented by Democrat Jim Costa for nearly two decades, though his district had different boundaries. The new district lines drawn by California's independent citizen redistricting commission in 2021 made the seat more competitive on paper, with a reported partisan voter index of D+4 according to the Cook Political Report. The 2022 election was the first contest under these new lines, resulting in one of the closest congressional races in the country. Republican John Duarte's victory that year was not certified until December 15, 2022, after a prolonged vote count. The district flipped back to Democrat Adam Gray in the 2024 election, continuing its recent pattern of volatility.
The outcome of the CA-13 election has significant implications for national politics. As a perennial swing district, it is a key battleground in the fight for control of the U.S. House of Representatives. Each party's ability to win here signals broader strength in competitive suburban and rural areas. The district's economy is heavily dependent on agriculture, particularly almond farming and dairy production. The winning candidate's stance on water policy, farm labor, and trade directly affects a major sector of the U.S. food supply. For the diverse population of the Central Valley, which includes large Latino and Asian American communities, the election determines representation on issues like healthcare access, immigration, and infrastructure investment. The race also tests political messaging on climate change and environmental regulation in a region that both contributes to and is vulnerable to environmental challenges.
As of early 2025, Democrat Adam Gray is the incumbent representative following his victory in the November 2024 election. The 2026 election cycle has not formally begun, with candidate filing deadlines over a year away. Political action committees and party organizations are conducting initial polling and voter analysis to assess the landscape. No major-party candidates have officially declared their intention to run. The district remains a listed target for the National Republican Congressional Committee (NRCC) in the next election cycle. Local party organizations are likely engaged in quiet recruitment efforts for potential challengers.
The district includes all of Merced County and parts of Stanislaus, Madera, Fresno, and San Joaquin counties. Major cities within the district include Merced, Modesto, and Turlock.
Democrat Adam Gray won the 2024 election for California's 13th congressional district. He defeated Republican incumbent John Duarte, who had held the seat since 2023.
Yes, CA-13 is considered a swing district. It has changed party hands in two consecutive elections (2022 and 2024), both decided by narrow margins, and has a Cook PVI rating of D+4.
The 2026 midterm election, which includes the race for CA-13, will be held on Tuesday, November 4, 2026. California's primary election will likely be held in March 2026.
Key issues include water policy and infrastructure for agriculture, farm labor and immigration, healthcare access in rural areas, and economic development. The district contains some of the most productive farmland in the United States.
Educational content is AI-generated and sourced from Wikipedia. It should not be considered financial advice.
2 markets tracked
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| Market | Platform | Price |
|---|---|---|
| Poly | 84% |
 | Poly | 13% |
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