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Prediction market platform Kalshi has taken decisive action against US House of Representatives candidate Laurie Buckhout and former Republican lawmaker George Santos, issuing lifetime bans and significant penalties for alleged insider trading on event contracts. These disciplinary measures, announced on Friday, represent some of the most stringent lifetime bans the company has implemented since its inception in 2021, signaling a robust crackdown on market manipulation within the burgeoning prediction market space.
In separate notices of settlement of disciplinary action, Kalshi’s compliance department detailed the penalties. George Santos, who was expelled from the House of Representatives in December 2023 amid fraud allegations, has been permanently suspended from trading on the platform and faces a substantial penalty of $71,356. Laurie Buckhout, currently running as the Republican candidate for North Carolina’s 1st congressional district in the 2026 midterm elections, received a three-year suspension from trading and a penalty of $2,590.
The sanctions against both individuals stem from investigations into their trading activities on event contracts that could be influenced or manipulated by their own actions or knowledge. According to Kalshi’s findings, Buckhout’s alleged misuse of insider information related to her own candidacy. The platform stated that Buckhout "announced her candidacy for public office and was added as a market option for a contract on a North Carolina Congressional election." This direct involvement in the event’s underlying outcome, while simultaneously trading on it, constitutes a violation of Kalshi’s rules.
Similarly, George Santos was found to have "engaged in trading activity in certain markets related to his attendance at the State of the Union address" in February 2026. This suggests Santos may have leveraged non-public information or possessed an advantage due to his position or potential access to information that could impact the outcome of events tied to the State of the Union address.
Kalshi’s rules explicitly prohibit such conduct, stating, "If a Trader is a decision maker, either directly or indirectly, or has any influence, directly or indirectly, no matter the scale and importance of the influence, on the outcome of the Underlying event of any Contract, that Trader is prohibited from attempting to enter into any trade, either directly or indirectly, on the market in such Contracts." This policy underscores the platform’s commitment to maintaining market integrity by preventing individuals from profiting from events they can directly or indirectly shape.
These actions by Kalshi are part of a broader trend of increased scrutiny and regulatory attention towards prediction market platforms. Lawmakers at both state and federal levels have raised concerns that many of the event contracts offered on these platforms are susceptible to manipulation, potentially blurring the lines between legitimate prediction markets and unregulated gambling.

The enforcement actions also come in the wake of a similar case involving Gabriel Perez, President Donald Trump’s teleprompter operator. Federal regulators fined Perez $172,000 after he traded event contracts on Kalshi related to Trump’s speeches. This precedent highlights the growing regulatory appetite to police insider trading within these novel financial instruments.
Kalshi’s compliance department noted that Laurie Buckhout "cooperated with the inquiry" and agreed to the terms of her settlement, including the three-year trading ban and penalty. This cooperation likely contributed to the less severe penalty compared to Santos. In contrast, Kalshi made no such statement regarding Santos’s cooperation, suggesting a less forthcoming engagement with the platform’s investigation.
George Santos, in a response posted on X (formerly Twitter), dismissed Kalshi as an "unserious company." Laurie Buckhout reportedly acknowledged her actions as a "dumb mistake," in reference to betting on her own congressional race.
Despite the disciplinary actions, Kalshi continues to list event contracts related to the outcome of Buckhout’s North Carolina race. As of Tuesday, the market indicated Democratic incumbent Don Davis had a 63% chance of winning, compared to Buckhout’s 41% chance. This continued operation of the market, even after the penalty, raises further questions about the platform’s oversight and the ongoing debate surrounding the nature of prediction markets.
The regulatory landscape for prediction markets is complex and evolving. Kalshi and other platforms, such as Polymarket, are facing legal challenges from state gaming authorities who allege that these platforms are facilitating illegal bets on various events, including sports. Simultaneously, the US Commodity Futures Trading Commission (CFTC), led by its sole commissioner and chair Michael Selig, asserts its "exclusive jurisdiction" over prediction markets. The CFTC has vowed to take legal action against any state authority that challenges this position.
In a notable development last month, the CFTC invoked its emergency authority to oppose an attempt by the state of New York to bar Kalshi from offering contracts tied to sports, elections, and other events. This move by the CFTC underscores the federal agency’s intent to regulate these markets and its willingness to use its powers to preempt state-level interventions.
The legal battles between federal regulators and state authorities, coupled with the internal enforcement actions taken by platforms like Kalshi, highlight the ongoing tension and uncertainty surrounding the legal and regulatory status of prediction markets. As these platforms continue to grow in popularity and sophistication, the debate over their classification—whether as financial instruments, gaming, or something entirely new—is likely to intensify, with significant implications for market participants and regulators alike. The actions against Santos and Buckhout serve as a stark reminder of the potential consequences for individuals who engage in activities deemed to be manipulative or in violation of platform rules, especially as regulatory bodies sharpen their focus on this emerging sector.