Short Answer

Both the model and the market expect "Yes" for the 2026 Democratic Senate primaries combo, with no compelling evidence of mispricing.

1. Market Behavior & Drivers

This prediction market has demonstrated a sideways trading pattern, with the probability of a "YES" resolution remaining within a defined range of 10.0% to 21.0%. The market opened at 18.0% and is currently priced at 17.0%, indicating stable long-term sentiment. The most significant price movement was a sharp 9.0 percentage point drop on April 26, 2026, when the price fell from 21.0% to 12.0%. According to the provided context, the specific driver for this significant drop cannot be identified from the available information, as no major primary events were scheduled for that time. The price subsequently recovered, returning to the middle of its long-term trading range.
The total volume of 5,371 contracts traded over the market's history suggests moderate but not intense activity. The sample data points show days with zero volume, implying that trading can be intermittent. This pattern of sporadic trading can sometimes lead to price swings on relatively small trades and may indicate a lack of sustained, high conviction from a large number of traders. Overall, market sentiment, as reflected by the price chart, has consistently valued the "YES" outcome as a low-probability event.
The price action has established clear technical levels. The 21.0% mark has acted as a distinct resistance level, capping upward price movement, while the 10.0% to 12.0% zone has served as a floor, or support, where buying interest has historically emerged. The current price of 17.0% is positioned near the market's opening price, reinforcing the idea of a stable, range-bound market awaiting a significant catalyst to break out of its established pattern.
  • Fundraising and key endorsements significantly impact Michigan's Senate primary.
  • Jon Ossoff appears non-competitive in the Georgia Democratic primary race.
  • Roy Cooper secured his party's nomination in early March 2026.
  • Precise Q1 2026 donor location percentages remain largely unavailable.
  • The upcoming general election on November 3, 2026 is a major catalyst.

Who Wins and Why

Outcome Market Model Why
Yes 17.0% 22.0% The 2026 Democratic Senate primaries are expected to feature several competitive races.

Current Context

Several key Democratic primaries are scheduled for early and late 2026. On March 3, 2026, Democratic primaries will be held in Arkansas, North Carolina, where Roy Cooper is running, and Texas, featuring James Talarico [1][2]. Following these early contests, the North Carolina post-primary matchup was set, with Sabato's ratings updated on March 4, 2026 [3][4]. Later in the cycle, the Michigan Democratic primary is scheduled for August 4, 2026, with candidates including El-Sayed, McMorrow (endorsed by Warren), and Stevens [4]. Georgia's Democratic Senator Jon Ossoff also faces a primary on May 19 [2][5].
The 2026 Senate cycle features multiple competitive races and open seats. Three significant open seats are due to retirements: Michigan, where Gary Peters is retiring; New Hampshire, with Jeanne Shaheen retiring; and Iowa, where Joni Ernst is retiring [4][2][5]. In April 2026, CNN identified nine competitive Senate races across the country, including Georgia, Maine, Michigan, Iowa, New Hampshire, North Carolina, Ohio, Alaska, and Texas [4]. Among these, Senator Jon Ossoff (GA-D) is in a competitive race that Sabato's Crystal Ball rates as Lean D [2][5].
Democrats face a significant challenge to gain Senate control. To achieve a majority in the Senate, Democrats require a net gain of four seats [6]. The electoral landscape for this goal includes 23 Senate seats currently held by Republicans that are up for election in 2026 [6].
Sources (6)
  1. 1United States Senate Democratic Party primaries, 2026 - Ballotpediaballotpedia.org
  2. 2Key Races in 2026 – Volunteer Bluevolunteerblue.org
  3. 32026 Senate - Sabato's Crystal Ballcenterforpolitics.org
  4. 4The 9 most competitive Senate races of the 2026 midterms | CNN Politicscnn.com
  5. 52026 United States Senate electionsen.wikipedia.org
  6. 62026 Senate Election Forecast Maps - 270toWin270towin.com

2. Price Chart

Historical Price (Probability)

Outcome probability
Date

3. Significant Price Movements

Notable price changes detected in the chart, along with research into what caused each movement.

📉 April 26, 2026: 9.0pp drop

Price decreased from 21.0% to 12.0%

Outcome: Yes

What happened: The primary driver for the 9.0 percentage point drop in the "2026 Democratic Senate primaries combo" market on April 26, 2026, cannot be identified from the available information. No Democratic Senate primaries were scheduled on or near this date; the earliest primaries were listed for March 3, with the next on May 12 [1][2]. Without specific details on social media activity, traditional news, or market events coinciding with this date, the cause of the price movement remains unexplained. Therefore, social media's impact on this particular market movement is unknown.
Sources (2)
  1. 1National Primary Elections 2026: Live Results and Mapnbcnews.com
  2. 2United States Senate Democratic Party primaries, 2026 - Ballotpediaballotpedia.org

4. Market Data

Contract Snapshot

This market resolves to "Yes" if at least 5 of 6 specified Democratic candidates (James Talarico, Raja Krishnamoorthi, Josh Turek, Graham Platner, Mallory McMorrow, Peggy Flanagan) win their 2026 Senate primaries; otherwise, it resolves to "No." Primary winners are determined using SENATEPARTYNOM and official state election results from Texas, Illinois, Iowa, Maine, Michigan, and Minnesota, with potential for accelerated determination two days after media consensus. The market opens on February 10, 2026, closes on November 3, 2026, and has a projected payout shortly thereafter.

Available Contracts

Market options and current pricing

Outcome bucket Yes (price) No (price) Last trade probability
Yes $0.17 $0.85 17%

Market Discussion

Juliana Stratton won the Illinois Democratic Senate primary on March 17, 2026 [1][2], amidst predictions indicating an 86% chance that no Democratic Senate incumbents will lose their primaries [3]. The Michigan Democratic Senate primary on August 4 is described as competitive [4], while in Oregon, Jeff Merkley is favored by 98% to win the primary on May 19 [5].

Sources (5)
  1. 13 takeaways from Illinois election results, Juliana Stratton's victory - AOLaol.com
  2. 2Illinois primary election results 2026: Governor, U.S. House and U.S. Senate | STLPRstlpr.org
  3. 3How many Democratic Senate Incumbents will not win their... 2026 | Polymarketpolymarket.com
  4. 4The top Senate races to watch in the midterms: NPRnpr.org
  5. 5Oregon Democratic Senate Primary Winner | Live Odds Comparison | Prediction Huntpredictionhunt.com

5. What key endorsements or fundraising reports before the August 4 Michigan primary could significantly alter the race between El-Sayed, McMorrow, and Stevens?

McMorrow Q1 2026 Net Raised$2.96M (Q1 2026) [1]
El-Sayed Q1 2026 Net Raised$2.27M (Q1 2026) [1]
Stevens Q1 2026 Total Raised$1.86M (Q1 2026) [1]
Fundraising and key endorsements significantly impact the Michigan Senate primary. The Michigan primary election for Senate is notably influenced by financial dynamics, including projected spending. The American Israel Public Affairs Committee (AIPAC) is anticipated to spend heavily in support of Haley Stevens, who also has the private backing of the Democratic Senatorial Campaign Committee (DSCC) [2]. Beyond finances, endorsements contribute to the campaign landscape, with Senator Elizabeth Warren endorsing Mallory McMorrow. Stevens has received endorsements from Senator Catherine Cortez Masto and Tate [3][2]. However, there will be no party convention endorsement for the Senate race [2].
Q1 fundraising shows McMorrow and El-Sayed outpaced Stevens in finances. During Q1 2026, Mallory McMorrow reported $2.96 million net and $8.6 million total raised, maintaining $3.69 million cash-on-hand, and led in grassroots funding, raising $2.22 million through ActBlue. Abdul El-Sayed secured $2.27 million net and $7.62 million total. Stevens raised $1.86 million overall, including $0.79 million via ActBlue [1]. Despite these fundraising figures, an April 2026 Glengariff poll indicated Stevens in a narrow lead over El-Sayed, with McMorrow trailing [4][5].
Sources (5)
  1. 1Michigan U.S. Senate primary tightens as McMorrow, El-Sayed outpace Stevens in Q1 fundraising • Michigan Advancemichiganadvance.com
  2. 22026 United States Senate election in Michiganen.wikipedia.org
  3. 3Abdul El-Sayed (D), Mallory McMorrow (D), Haley Stevens (D), and two other candidates are running in the Democratic primary for U.S. Senate in Michigan on August 4, 2026 - Ballotpedia Newsnews.ballotpedia.org
  4. 4Haley Stevens narrowly leads Abdul El-Sayed in new Michigan U.S. Senate polldetroitnews.com
  5. 5Stevens Leads El-Sayed in New Michigan U.S. Senate Poll - Detroit Regional Chamberdetroitchamber.com

6. What evidence from Q1 2026 fundraising reports and early polling supports the assessment of Jon Ossoff's Georgia primary as competitive?

Primary StatusUnopposed in Democratic primary (Ballotpedia) [1]
Q1 2026 Fundraising$14 million+ (Ossoff campaign) [2]
Total Funds RaisedUp to $57.3 million raised, $31 million cash on hand (OpenSecrets) [3][4]
Jon Ossoff's Georgia Democratic primary is currently not competitive. Evidence from Q1 2026 fundraising reports and early polling indicates a non-competitive primary, with Ballotpedia reporting Ossoff is unopposed [1]. Two previously announced candidates, Hisham Darwish and Kia Legette, have withdrawn from the race, leaving no Democratic primary challengers fundraising or polling against Ossoff [1].
Ossoff's campaign shows robust fundraising, indicating general election strength. His campaign reported raising over $14 million in Q1 2026 [2]. OpenSecrets further notes total fundraising of up to $57.3 million, with $31 million cash on hand, and 99% of contributions from small donors [3][4]. These significant financial figures reflect his overall campaign strength and resources for the general election, rather than indicating competition within the Democratic primary itself.
Recent polls affirm Ossoff's strong position, but lack primary-specific data. An Emerson poll from February-March 2026 indicates Ossoff leading the Republican field [5]. An AJC poll in May 2026 also highlights strong Democratic approval for him ahead of the general election [6]. However, neither of these polls included specific data related to the Democratic primary [5][6].
Sources (6)
  1. 1United States Senate election in Georgia, 2026 (May 19 Democratic primary) - Ballotpediaballotpedia.org
  2. 2Ossoff Raises $14 Million in Q1 of 2026 To Prepare for Millions In Spending From GOP Super PACs - Jon Ossoff for U.S. Senateelectjon.com
  3. 3Small donors vs. big checks: Fundraising divide shapes Georgia Senate race • OpenSecretsopensecrets.org
  4. 4Sen. Jon Ossoff raised $57.3M in Q1 2026, about 8.5x the... - Threadsthreads.com
  5. 5Georgia 2026 Poll: Senator Ossoff Starts Re-Election Near 50% and Outpaces GOP Field - Emerson Pollingemersoncollegepolling.com
  6. 6AJC Poll: Democrats high on Ossoff heading into tough electionajc.com

7. How do the Q1 2026 fundraising profiles of Jon Ossoff (Georgia) and Mallory McMorrow (Michigan) differ in terms of in-state versus out-of-state donors?

Jon Ossoff Q1 2026 Fundraising$14 million [1][2]
Mallory McMorrow Q1 2026 FundraisingOver $3 million [3][4]
Jon Ossoff Small Donations99% of donations less than $200 [1][2]
Exact in-state and out-of-state donor percentages are generally unavailable. Specific figures for the Q1 2026 fundraising profiles of Jon Ossoff and Mallory McMorrow cannot be precisely determined, as reporting requirements do not mandate state disclosure for small and unitemized donors [4]. Nevertheless, both candidates demonstrated considerable support from small-dollar contributions and extensive donor bases within their respective states [1][2][3][4].
Jon Ossoff reported substantial Q1 2026 fundraising, primarily from small donors. The Ossoff campaign announced raising $14 million from 408,000 donations during this quarter, with an average contribution of $38 [1][2]. A significant portion, 99%, of these contributions were less than $200. Furthermore, Ossoff garnered donations from 158 of Georgia's 159 counties, underscoring his broad appeal across the state [1][2].
Mallory McMorrow also demonstrated strong small-dollar support and in-state reach. In Q1 2026, McMorrow's campaign reported raising over $3 million from more than 70,000 individual donors [3][4]. A high percentage of her donations, 98%, were $100 or less, and over half were less than $200 [3][4]. Since the start of her campaign, McMorrow has received contributions from all 83 counties in Michigan and, according to FEC data, has outperformed her Democratic rivals in both small donations and funds originating from within Michigan [3][4].
Sources (4)
  1. 1Ossoff Raises $14 Million in Q1 of 2026 To Prepare for Millions In Spending From GOP Super PACs - Jon Ossoff for U.S. Senateelectjon.com
  2. 2Democratic candidates start 2026 with a fundraising bang – Roll Callrollcall.com
  3. 3McMorrow Announces Over $3 Million Raised in Q1mcmorrowformichigan.com
  4. 4Mallory McMorrow raises big bucks from small dollar donors in US Senate race - Bridge Michiganbridgemi.com

8. What is the expected release schedule for reliable, non-partisan primary polling in the key Senate races of Georgia, Michigan, and North Carolina for H1 2026?

North Carolina First Primary PollFebruary 27 [1]
Roy Cooper Support (NC Primary)78% [1]
Georgia Democratic Primary DateMay 19, 2026 [2]
Early primary polling in H1 2026 varies significantly by state. For North Carolina's Senate Democratic primary, scheduled for March 3, 2026 [1][3], the first reliable, non-partisan poll was released on February 27, showing candidate Roy Cooper with 78% support [1]. In contrast, no early primary polls were identified for Georgia's Democratic primary, set for May 19, 2026, where Jon Ossoff is running [2].
Michigan's primary polling data remains incomplete for H1 2026. The Democratic primary in Michigan is scheduled for August 4, 2026 [4]. An Emerson poll indicated a tie among candidates El-Sayed, McMorrow, and Stevens [4][5]; however, the specific release date of this poll within H1 2026 was not provided [4][5]. Looking ahead, ongoing polls are anticipated in May 2026 for both Michigan and North Carolina [6][7], with additional polls from Siena/CNN expected post-Q1, also within H1 2026 [6][7].
Sources (7)
  1. 12026 Polls: North Carolina Senate - 270toWin270towin.com
  2. 2United States Senate election in Georgia, 2026 (May 19 Democratic primary) - Ballotpediaballotpedia.org
  3. 3United States Senate election in North Carolina, 2026 (March 3 Democratic primary) - Ballotpediaballotpedia.org
  4. 4United States Senate election in Michigan, 2026 (August 4 Democratic primary) - Ballotpediaballotpedia.org
  5. 5- Emerson Pollingemersoncollegepolling.com
  6. 6Michigan U.S. Senate Election 2026: Latest Pollsnytimes.com
  7. 7North Carolina U.S. Senate Election 2026: Latest Pollsnytimes.com

9. Which state-level political developments in North Carolina between January and March 2026 pose the biggest risk to Roy Cooper's primary campaign?

Primary Election DateMarch 3, 2026 [1][2][3]
Democratic Primary OutcomeRoy Cooper advanced unhindered [1][2][3]
Impact of Gubernatorial Record on PrimaryDid not impact his primary campaign [4][3]
Roy Cooper comfortably secured his party's nomination in early March. He advanced unhindered to the general election following the Democratic primary held on March 3, 2026 [1][2][3]. While his gubernatorial record drew criticism from Republicans regarding issues such as crime and legislative gridlock, these points did not negatively impact his primary campaign performance [4][3].
Republican legislative actions posed no threat to Cooper's primary bid. Between January and March 2026, state-level political developments included Republican-led efforts to advance congressional redistricting, notably modifying NC-1 specifically to target Representative Don Davis [1][5]. The North Carolina Legislature also highlighted ongoing Republican priorities, including efforts to gerrymander districts in anticipation of the 2026 midterms [1][6][7]. However, despite these significant political maneuvers, these developments did not pose a risk to Roy Cooper's primary campaign.
Sources (7)
  1. 1Roy Cooper, Michael Whatley set to compete for a high-stakes North Carolina U.S. Senate seat: NPRnpr.org
  2. 2Roy Cooper - Ballotpediaballotpedia.org
  3. 3Roy Cooper and Michael Whatley clinch North Carolina Senate nods, setting up high-stakes fall fightwbko.com
  4. 4Democrat Roy Cooper needs to defy North Carolina history to keep winning streak alive in Senate race | WUNC Newswunc.org
  5. 5Federal Judges Uphold Several North Carolina US House Districts Drawn by Republicans - Chapelboro.comchapelboro.com
  6. 6Short session may have long to-do list for NC legislatorscarolinapublicpress.org
  7. 7N.C. Legislators Face Long To-Do List for ‘Short Session’cityviewnc.com

10. What Could Change the Odds

Key Catalysts

The upcoming general election on 2026-11-03 [1][2] will be a major catalyst. Early Democratic primaries are scheduled for March 3, 2026 in AR, NC, and TX [3]. Polymarket indicates a 52% probability for Democratic Senate control as of recent [1].
Several state primaries and runoffs are active on Kalshi prediction markets, including LA on 5/16, GA/KY/AL on 5/19, TX runoff on 5/26, IA on 6/2, and ME on 6/9 [4]. Key states where Democrats see their best chances include ME, NC, OH, and AK, with potential for IA and TX on a blue wave [5]. Recent developments include Montana's GOP Senator Daines withdrawing on March 5, 2026 [6], and the NC open seat primary on March 3 [7].

Key Dates & Catalysts

  • Expiration: November 03, 2026
  • Closes: November 03, 2026
Sources (7)
  1. 12026 Midterm Elections predictions & odds | Polymarketpolymarket.com
  2. 2The 2026 Midterms: Key Dates and Events • Bipartisan Policy Centerbipartisanpolicy.org
  3. 3United States Senate Democratic Party primaries, 2026 - Ballotpediaballotpedia.org
  4. 4Kalshi Prediction Markets for Select Senate 2026 Elections - 270toWin270towin.com
  5. 5Predictions for the Senate - 2026 Midterms - Updated Daily — Race to the WHracetothewh.com
  6. 6Daines withdraws from Senate race as filing closesthenationaldesk.com
  7. 7All eyes on NC’s open U.S. Senate seat as voters head to the pol…digitalaudio.capitolbroadcasting.com