Congress Probes Polymarket Over Paid Election Influencers

Polymarket is facing a congressional probe over paid influencers who promoted election-denial claims while the platform ran live betting markets on the same elections. On July 14, 2026, Rep. Raja Krishnamoorthi (Democrat, Illinois) sent a letter to Polymarket CEO Shayne Coplan demanding answers by July 28, 2026 on whether the prediction market knowingly paid partners who spread misinformation about voter fraud.

The inquiry pushes a fast-growing corner of the gambling industry, real-money prediction markets, into a political fight over election integrity. It lands just months after Polymarket returned to United States users, and it signals that Washington intends to scrutinise how these platforms market themselves as they scale.

What did Krishnamoorthi ask Polymarket to hand over?

Krishnamoorthi asked Polymarket for three categories of information, all due by July 28, 2026. According to the congressman's own office, the letter requests documents and answers covering the company's influencer, affiliate and sponsored-content programs.

• Knowledge: whether Polymarket knowingly partnered with influencers who publicly promoted election-denial claims.
• Policies: the company policies that govern paid promotions, affiliate programs and influencer partnerships, including how they are enforced.
• Records: internal documents dated from January 2025 onward covering influencer vetting, monitoring, internal discussions with election-denial figures, and guidance on promoting election-related markets.

Key facts about the Polymarket congressional probe

• July 14, 2026: Krishnamoorthi sends the letter to CEO Shayne Coplan (source: Rep. Krishnamoorthi's office).
• July 28, 2026: deadline for Polymarket to respond.
• Up to 500 dollars per post: the amount Kalshi and Polymarket offered creators, according to former employees cited by NPR.
• 112 million dollars: what Polymarket paid in July 2025 for QCEX, the CFTC-licensed exchange and clearinghouse that cleared its US return.
• 2 billion dollars: the investment Intercontinental Exchange, owner of the New York Stock Exchange, made in Polymarket in October 2025.

Why is a congressman looking at a betting platform?

Because the concern is that election markets and paid political messaging are becoming entangled. Krishnamoorthi framed the issue as a structural risk rather than a single bad post. "When political influence and financial incentives become intertwined, platforms risk incentivizing premature claims" and misleading narratives about elections, he wrote, warning that prediction markets could profit from election misinformation through paid influencer partnerships.

The worry is straightforward. If a platform lists a market on an election result, and also pays influencers with large followings to talk up that market, those influencers have a financial reason to amplify doubt about the count. That creates what the letter calls dangerous incentives to promote misleading information about voter fraud.

What actually happened with the influencers?

The probe grew out of reporting on the Los Angeles mayoral primary held on June 2, 2026. Markets on Polymarket and rival Kalshi tracked odds for candidates including Spencer Pratt, Nithya Raman and incumbent Karen Bass, with Raman ultimately taking second place and advancing to a November runoff.

As the count progressed, several paid creators posted content questioning the integrity of the vote. According to NPR, an influencer posting as Mila Joy, with around 500,000 followers, claimed vote counters were working to make sure a candidate lost, while an account operating as Gunther Eagleman asked whether California was cheating. Commentators including Benny Johnson and Kangmin Lee shared Polymarket posts about shifting odds, and former congressman Matt Gaetz was described as a former paid Polymarket contributor.

How did Polymarket and Kalshi respond at the time?

Both platforms moved quickly once questioned. NPR reported that Kalshi told influencers to delete posts after the outlet made inquiries, and that Polymarket removed "paid partnership" tags from some creator posts. Polymarket has said that any post denying the result of an election violates its content rules.

That response is now central to Krishnamoorthi's questions. The congressman wants to know what those content rules actually say, when they were written, and how consistently they have been enforced against paid partners rather than ordinary users.

What do outside experts say?

Independent researchers have argued the problem is the payment itself, not just the content. Brendan Nyhan, a political scientist at Dartmouth College who studies misinformation, put it bluntly to NPR.

"Companies shouldn't be paying people to spread misinformation."

Election officials have echoed the concern. David Becker, a widely cited elections expert, told NPR that while state officials were still counting all the ballots, profiteers were spreading lies about the process. Those views help explain why a market-conduct issue has become a democracy issue in Washington.

How big is Polymarket, and why does this matter now?

Polymarket is one of the two dominant real-money prediction markets, alongside Kalshi, and it has spent the last year rebuilding its US presence. The platform had been closed to American users following a 2022 settlement with the Commodity Futures Trading Commission, in which the CFTC ordered its operator to pay a 1.4 million dollar penalty (source: CFTC).

Its route back ran through acquisition and capital. In July 2025 Polymarket bought QCEX, a CFTC-licensed derivatives exchange and clearinghouse, for 112 million dollars, giving it the regulated infrastructure to serve US traders. In October 2025, Intercontinental Exchange committed up to 2 billion dollars to the company, one of the largest institutional bets yet on the sector. The scrutiny now arriving is the flip side of that mainstream arrival: bigger platforms attract bigger oversight.

How does this compare to the pressure on Kalshi?

Polymarket is not the only prediction market under a microscope. The table below sets out where the two leaders stand on the current wave of scrutiny.

Issue	Polymarket	Kalshi
Congressional letter (July 2026)	Yes, from Rep. Krishnamoorthi, due July 28	Named in the same influencer reporting
Paid election influencers	Removed some paid partnership tags after inquiries	Told influencers to delete posts
US regulatory anchor	QCEX, CFTC-licensed, bought for 112 million dollars	CFTC-regulated designated contract market
State-level friction	Election-conduct scrutiny	State bans and cease-and-desist fights over sports contracts

For more on the parallel state-level battles facing the sector, see our coverage of Michigan's extended Kalshi sports contract ban and the Ninth Circuit hearing on Kalshi and tribal lands.

Is this a formal investigation or fine?

No. This is a congressional oversight letter, not an enforcement action, and it does not carry a fine or a licensing sanction on its own. Krishnamoorthi is a member of the minority in the House, so the request is not a subpoena and Polymarket is not legally compelled to comply in the way it would be with a court order. It is, however, a formal on-the-record demand that can shape hearings, future legislation and how regulators such as the CFTC view the sector.

What could happen if Polymarket does not respond?

If Polymarket declines to answer, the practical consequence is reputational and political rather than immediate. A non-response can be cited publicly, raised in committee, and used to argue for tighter rules on how prediction markets advertise around elections. Given the company's push for mainstream legitimacy and its new institutional backers, staying silent carries its own cost.

What does this mean for the wider iGaming and betting sector?

The probe is a warning shot for every operator that leans on affiliates and influencers. Paid-creator marketing is standard across sports betting and iGaming, and this episode shows how it can turn into a compliance and reputational liability when the subject is politically charged. Expect operators to tighten disclosure rules, vet paid partners more carefully, and build clearer content policies for anyone promoting real-money markets. As prediction markets move from crypto-native niche to Wall Street backed mainstream, the marketing playbook is going to be held to a higher standard.

Updated July 2026

This is a developing story. As of July 15, 2026, Polymarket had not publicly responded to the letter, and the July 28 deadline had not passed. We will update this report with the company's response and any follow-up from Congress or the CFTC.

Frequently asked questions

Who sent the letter to Polymarket?
Rep. Raja Krishnamoorthi, a Democrat from Illinois, sent the letter to Polymarket CEO Shayne Coplan on July 14, 2026.

What is the deadline for Polymarket to respond?
Polymarket has been asked to provide documents and answers by July 28, 2026.

What is Polymarket being accused of?
The letter raises concerns that Polymarket may have paid influencers who promoted election-denial claims while the platform ran live markets on those same elections, potentially profiting from election misinformation.

How much were influencers paid?
According to former employees cited by NPR, Kalshi and Polymarket offered creators as much as 500 dollars per post.

Is Polymarket legal in the United States?
Yes. After a 2022 CFTC settlement closed it to US users, Polymarket returned to the US market through its 2025 acquisition of the CFTC-licensed exchange and clearinghouse QCEX.

Is this a fine or an investigation?
Neither. It is a congressional oversight letter requesting information, not an enforcement action or a financial penalty.

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