How many AIPAC-endorsed candidates will lose their primaries?
Short Answer
Both the model and the market expect at least 1 AIPAC-endorsed candidate to lose their primary, with no compelling evidence of mispricing.
1. Executive Verdict
- AIPAC-affiliated PACs possess significant financial advantages in primaries.
- Few highly-endorsed progressive challengers are identified against incumbents.
- The United Democracy Project substantially outspent opposing progressive groups.
- Insufficient specific data identifies qualified progressive challengers for incumbents.
- Only one primary challenger holds two 'Squad' endorsements by May 2026.
Who Wins and Why
| Outcome | Market | Model | Why |
|---|---|---|---|
| At least 3 | 87.0% | 75.2% | AIPAC-affiliated PACs possess significant financial advantages, limiting primary losses to a low number. |
| At least 5 | 37.0% | 22.6% | The limited number of highly-endorsed progressive challengers makes five primary losses unlikely. |
| At least 10 | 31.0% | 18.6% | AIPAC's significant financial advantages substantially reduce the likelihood of ten primary losses. |
| At least 1 | 91.0% | 82.0% | AIPAC's financial advantages and limited challengers do not preclude at least one primary loss. |
2. Market Behavior & Price Dynamics
Historical Price (Probability)
Outcome probability
Date
This prediction market's price action has been entirely static. The chart displays a perfectly flat, sideways trend, with the probability holding steady at 91.0% since the market's inception. Across all 124 data points, there have been no significant movements, spikes, or drops. The price opened at 91.0% and has not deviated, establishing this as the single trading level for the market's entire history.
The lack of price movement means there are no events to correlate with external context. The most telling feature of this market is its extremely low trading volume, with only 40 contracts traded in total. This minimal activity suggests a highly illiquid market with very little trader participation or conviction. The 91.0% level acts as both the default support and resistance, but its significance is diminished as it has not been tested by any meaningful trading pressure.
The market sentiment, as reflected by the static 91.0% price, suggests a very high and stable expectation that the outcome will be YES. However, this reading must be heavily qualified by the lack of trading volume. While the price implies strong consensus, the absence of activity indicates the market is largely dormant. The sentiment appears fixed, but it has not been validated or challenged by robust market participation.
3. Significant Price Movements
Notable price changes detected in the chart, along with research into what caused each movement.
Outcome: At least 3
📈 April 23, 2026: 15.0pp spike
Price increased from 72.0% to 87.0%
What happened: No supporting research available for this anomaly.
📉 April 21, 2026: 10.0pp drop
Price decreased from 82.0% to 72.0%
What happened: No supporting research available for this anomaly.
📈 April 19, 2026: 10.0pp spike
Price increased from 69.0% to 79.0%
What happened: No supporting research available for this anomaly.
📉 April 15, 2026: 15.0pp drop
Price decreased from 87.0% to 72.0%
What happened: No supporting research available for this anomaly.
Outcome: At least 5
📉 April 16, 2026: 14.0pp drop
Price decreased from 51.0% to 37.0%
What happened: No supporting research available for this anomaly.
4. Market Data
Contract Snapshot
This market resolves to Yes if at least five AIPAC-endorsed candidates lose their primary elections held between April 10, 2026, and September 16, 2026. An AIPAC-endorsed candidate must be listed on the AIPAC PAC featured candidates page and allow donations at the time of their primary, with specific rules for withdrawals and primary types. If fewer than five candidates lose their primaries, the market resolves to No, with the outcome verified by Secretaries of State by the projected payout date of December 15, 2026.
Available Contracts
Market options and current pricing
| Outcome bucket | Yes (price) | No (price) | Last trade probability |
|---|---|---|---|
| At least 1 | $0.94 | $0.16 | 91% |
| At least 3 | $0.91 | $0.13 | 87% |
| At least 5 | $0.37 | $0.64 | 37% |
| At least 10 | $0.27 | $0.89 | 31% |
Market Discussion
Limited public discussion available for this market.
5. Are AIPAC-Endorsed Incumbents Facing Qualified Progressive Challengers?
| Primary Contest Noted | Dan Goldman (NY-10) vs. Brad Lander [^] |
|---|---|
| Q1 2026 Fundraising Ratio | Dan Goldman outraised Brad Lander by three times [^] |
| Challenger Cash-on-Hand Data | Specific figures not provided for either candidate [^] |
Based on available web research, insufficient specific data exists to identify any AIPAC-endorsed incumbents who fully meet all the stated criteria. While AIPAC's strategy targets candidates who seek to condition aid to Israel [^], the provided sources do not explicitly confirm Dan Goldman's (NY-10) endorsement by AIPAC. Dan Goldman and Brad Lander are noted as candidates in a primary contest [^].
Regarding fundraising, Dan Goldman significantly outraised Brad Lander by three times during their Q1 2026 efforts [^] . However, the available sources do not provide specific cash-on-hand figures for either candidate as of the Q1 2026 FEC filing deadline [^]. This lack of data prevents determining whether any challenger's cash-on-hand reached at least 40% of an incumbent's required by the research query.
Furthermore, although progressive groups are reportedly rolling out endorsed candidates [^], the provided information does not indicate that Brad Lander, or any specific challenger to an AIPAC-endorsed incumbent, has secured a major endorsement from a national progressive organization such as Justice Democrats or the Working Families Party.
6. What Was the Spending Ratio in Contested Democratic Primaries?
| IL-07 UDP Spending vs Progressive | Approximately 1.67 times more than progressive groups [^] |
|---|---|
| IL-08 UDP Spending vs Progressive | Approximately 2.08 times more than progressive groups [^] |
| NC-04 UDP Spending vs Progressive | Approximately 1.61 times more than progressive groups [^] |
In several highly contested Democratic primaries, the United Democracy Project (UDP) substantially outpaced opposing progressive groups in outside spending [^] . These crucial races included Illinois's 7th, 8th, and 2nd Congressional Districts, alongside North Carolina's 4th Congressional District, where UDP's expenditures consistently exceeded those of its progressive counterparts. The impact of these financial efforts played a significant role in the dynamics of these elections.
UDP's spending ratios varied across Illinois's crucial districts in these contests. In the Illinois 7th Congressional District, UDP allocated nearly $1.4 million, which was approximately 1.67 times the $840,000 spent by progressive groups [^]. Similarly, in the Illinois 8th Congressional District, UDP's expenditure reached $2.5 million, roughly 2.08 times the $1.2 million spent by progressive organizations [^]. The trend continued in Illinois's 2nd Congressional District, where UDP spent $1.8 million, approximately 1.64 times the $1.1 million from progressive groups [^].
North Carolina's 4th District also followed a similar spending pattern in the primaries. Here, the United Democracy Project committed about $1.8 million in outside spending [^]. This amount significantly outweighed the approximately $1.116 million contributed by opposing progressive groups, including organizations such as VoteVets and the Congressional Progressive Caucus PAC [^]. This resulted in a spending ratio of approximately 1.61:1 in favor of UDP in this district [^].
7. Which AIPAC Challengers Have Two 'Squad' Endorsements by May 2026?
| Challengers with 2+ 'Squad' Endorsements | One (by May 1, 2026) [^] |
|---|---|
| Candidate Meeting Criteria | Kat Abughazaleh [^] |
| Kat Abughazaleh's 'Squad' Endorsers | Ilhan Omar and Rashida Tlaib [^] |
As of May 1, 2026, only one primary challenger running against an AIPAC-endorsed candidate has garnered public endorsements from at least two members of 'The Squad'. Kat Abughazaleh, a candidate for the U.S. House, notably secured endorsements from both Representatives Ilhan Omar and Rashida Tlaib [^]. Her campaign is significant given the considerable spending directed against her by AIPAC, confirming her status as a primary challenger in an AIPAC-relevant electoral contest [^].
Chris Rabb secured one 'Squad' endorsement, falling short of two. Another challenger, Chris Rabb, who is campaigning in a Pennsylvania congressional primary where AIPAC's influence is a factor, received an endorsement from Representative Alexandria Ocasio-Cortez (AOC) by April 24, 2026 [^]. While other prominent progressive figures are aligning behind Rabb [^] and progressives are considering mobilizing support for his candidacy [^], sources available by the May 1, 2026 deadline do not indicate an additional 'Squad' member endorsement that would bring his total to two or more. Furthermore, a candidate named Donavan has also positioned himself as an AIPAC critic [^], but no 'Squad' endorsements were noted for his campaign.
8. Are AIPAC's 2026 Primary Endorsements for Biden-leaning Districts Public?
| Available Endorsement Data Focus | Primarily 2024 election cycle or earlier [^] |
|---|---|
| 2026 Primary Endorsement Status | Not publicly available with specific district analysis [^] |
| 2026 Primary Election Window | April 10, 2026 to September 16, 2026 [^] |
Data regarding AIPAC's 2026 primary endorsements is currently unavailable. Detailed information concerning AIPAC's specific 2026 primary endorsements, particularly for defending incumbents in districts where Joe Biden won by less than 10 points in 2020, is not publicly accessible in the provided sources. The research indicates that most accessible data focuses on past election cycles rather than forward-looking 2026 primary endorsement data with granular district-level analysis.
Existing public resources primarily cover previous election cycles. As of May 2024, comprehensive lists of AIPAC's 2026 primary endorsements, including breakdowns by incumbent status and specific 2020 presidential district margins, have not been published. Resources such as '2024 AIPAC-Endorsed Winners' [^] and general election winner lists [^] primarily cover the 2024 election cycle or earlier. Similarly, Ballotpedia's 'Endorsements by American Israel Public Affairs Committee' [^] and 'Track AIPAC' pages [^] typically provide information for current or previous election cycles.
Financial tracking differs from formal endorsement analysis for 2026. While the '2026 AIPAC Congressional Funding Tracker' [^] exists, it tracks financial contributions rather than formal primary endorsements. This tracker does not offer the granular analysis of Biden's 2020 district performance or incumbent primary status required to answer the specific question. Detailed endorsement lists with specific district vulnerability analysis are generally released closer to the election cycle, given that the 2026 primary elections are still more than a year away.
9. When Are the Key Competitive Primaries Scheduled Before June 2026?
| Total Competitive Primaries | 14 before June 15, 2026 [^] |
|---|---|
| States with Primaries | 11 different states [^] |
| Earliest Primary Date | March 3, 2026 (Texas) [^] |
Fourteen competitive primaries are scheduled before June 15, 2026, across 11 states. A total of 14 of the most competitive primaries are scheduled within this timeframe. These primaries are primarily identified from Ballotpedia's 2026 Democratic Party battleground primaries list [^], with several also highlighted in news articles for their high-profile nature and involvement of the American Israel Public Affairs Committee (AIPAC) [^]. These contests span 11 different states and all fall within the prediction market's timeframe for resolution.
Key early primaries include Texas and Illinois, with significant AIPAC involvement. The earliest of these competitive primaries is in Texas (TX-32) on March 3, 2026 [^]. Significant activity also involves three battleground primaries in Illinois (IL-01, IL-07, IL-12) scheduled for March 17, 2026. These Illinois primaries are explicitly noted for AIPAC involvement and competitive dynamics [^]. Other crucial primaries include New Jersey (NJ-03) on June 2, 2026, which is also noted for AIPAC involvement [^]. The latest primary within this defined period is in Virginia (VA-07) on June 9, 2026 [^].
10. What Could Change the Odds
Key Catalysts
Catalyst analysis unavailable.
Key Dates & Catalysts
- Strike Date: September 16, 2026
- Expiration: December 15, 2026
- Closes: September 16, 2026
11. Decision-Flipping Events
- Trigger: Catalyst analysis unavailable.
13. Historical Resolutions
No historical resolution data available for this series.
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