Kalshi permanently suspended former Representative George Santos from direct or indirect access to its exchange and imposed a $71,356 penalty after finding that he traded in markets tied to his own 2026 State of the Union attendance. The action, effective August 28, followed a July 31 Commodity Futures Trading Commission order requiring Santos to pay $35,069.98 and accept a three-year trading ban.

Why did Kalshi ban George Santos?

Kalshi’s Notice of Settlement of Disciplinary Action, File No. KDA-2026-0006, said its compliance department had reasonable cause to believe Santos violated multiple exchange rules, including rules barring trading on contracts where a member has material non-public information or can influence the underlying event.

The contract at issue asked whether named individuals would attend the 2026 State of the Union address. Kalshi said Santos placed a series of large trades between February 2 and February 25, 2026, in markets where the underlying contracts depended on his own attendance. The exchange said he then made public statements about whether he would attend in an effort to move prices in the Yes and No contracts.

Kalshi’s notice said some of those statements were false or misleading and that Santos profited $17,839.57 from the target markets. The exchange also cited Rule 3.6(a), which requires members to cooperate promptly and fully with investigations, inquiries, audits and proceedings.

The integrity issue is unusually direct. In many prediction markets, traders may have better information than the public. In this case, the person trading was also the person whose conduct helped determine the settlement outcome. Kalshi treated that as both an information problem and an influence problem under its rulebook.

What did the CFTC order Santos to pay?

The CFTC’s July 31, 2026 order and press release said Santos engaged in manipulative activity in an event contract whose underlying event he controlled. The agency ordered him to disgorge $17,569.98 in trading profits, pay a $17,500 civil monetary penalty and cease and desist from further violations of the Commodity Exchange Act and CFTC regulations.

The federal order also imposed a three-year trading ban. The CFTC said Santos traded between February 12 and February 25, 2026, in a contract titled “Who will attend the State of the Union?” and more specifically on whether he would attend the address.

The CFTC and Kalshi sanctions are separate. Kalshi’s $71,356 penalty was an exchange disciplinary action under Kalshi rules. The CFTC’s $35,069.98 total was a federal enforcement action by the agency that regulates designated contract markets and other derivatives venues. Combined, the monetary sanctions total $106,425.98.

The profit figures differ slightly because the two actions describe the trading proceeds differently. Kalshi’s notice said Santos profited $17,839.57 in the target markets. The CFTC order required disgorgement of $17,569.98, plus the separate civil penalty.

How did Santos respond?

Santos rejected Kalshi’s framing. On X, he wrote: “Hey @Kalshi thanks for the lifetime ban from your gambling platform. Let’s see how much longer you guys are around for.” On his podcast, he said: “I guess people lost money. Some people made unexpected money. That’s to show you how fragile these markets are.”

His description of Kalshi as a gambling platform tracks the legal fight now running through state and federal courts. Massachusetts Attorney General Andrea Joy Campbell said in a January 20, 2026 statement that her office had secured a court order blocking Kalshi from accepting online sports wagers and related event contracts from Massachusetts customers unless it complied with state sports-gaming laws, including licensure by the Massachusetts Gaming Commission.

Minnesota Attorney General Keith Ellison used similar language in a June 18, 2026 statement opposing requests by the CFTC, Kalshi and Polymarket for a preliminary injunction against Minnesota’s Prediction Market Statute. Ellison said prediction markets are gambling and argued that Minnesota could regulate sports, cultural, political and social event contracts under its police powers.

Federal courts have not spoken with one voice. In Minnesota, U.S. District Judge Katherine M. Menendez granted preliminary injunctions on July 27, 2026, in cases involving the United States and CFTC, Kalshi and Polymarket, temporarily blocking enforcement of the Minnesota statute while the litigation proceeds. On August 28, 2026, a Ninth Circuit panel in KalshiEX LLC v. Assad affirmed in part an order dissolving an injunction that had blocked Nevada from enforcing state laws against Kalshi’s sports-related event contracts.

Why does Santos’s criminal case matter here?

Santos’s separate criminal case gives the market case a sharper public profile, but it does not determine whether Kalshi’s event contracts are derivatives, gambling products or both in different legal settings. The U.S. Attorney’s Office for the Eastern District of New York said Santos was sentenced on April 25, 2025, to 87 months in prison after pleading guilty to wire fraud and aggravated identity theft.

The Justice Department’s Office of the Pardon Attorney lists an October 17, 2025 commutation from President Donald Trump for George Anthony Devolder Santos. The clemency listing describes the Eastern District of New York sentence as 87 months of imprisonment, two years of supervised release and $373,749.97 in restitution.

That history is not evidence in Kalshi’s rule case. It does, however, make the disciplinary action more visible than a routine exchange matter. Santos is a former member of Congress, the contract concerned a presidential address and the alleged trading advantage came from his own planned conduct rather than from a corporate disclosure, campaign poll or third-party leak.

What does this mean for prediction-market enforcement?

The Santos action gives prediction-market regulators and competitors a concrete example of post-trade discipline by a CFTC-regulated exchange. Kalshi said the trades occurred, its compliance department investigated, and the exchange then imposed a permanent suspension plus a monetary penalty. The CFTC separately brought a federal action over the same State of the Union market.

The case also shows why insider-trading controls are harder in event contracts than in many conventional markets. Politicians know their own schedules. Athletes may know their health status before fans or oddsmakers do. Campaign staff, agents and event organizers can hold information that affects settlement before the public can price it. A market on a named person’s attendance puts that person at the center of the informational advantage.

For Kalshi, the discipline cuts both ways. The exchange can point to the Santos notice and the CFTC order as evidence that violations can be punished. At the same time, Kalshi is the venue enforcing its own rules and has a business interest in persuading regulators, courts and state officials that its compliance systems work.

The immediate consequences are fixed by the two orders. Santos is permanently barred from Kalshi under the August 28 disciplinary notice. His CFTC trading ban runs for three years from the July 31, 2026 federal order, putting the federal ban period through July 31, 2029.