Kalshi Fines 3 Politicians, Bars Them for 5 Years Over Bets on Their Own Elections

Kalshi Bars Bets on a Candidate’s Own Race

Three Politicians Fined and Suspended for Five Years

Insider-Trading Concerns Rise as Political Event Betting Expands

White House Also Warns Staff

Prediction market platform Kalshi fined three politicians and suspended them from the platform after they bet on the outcomes of their own elections, a case that underscores rising concerns about insider trading as wagering on political events spreads.

The company identified the three as Minnesota state Senator Matt Klein, former House candidate Ezequiel Enriquez and Virginia Senate candidate Mark Moran. Kalshi said they bet in markets tied to their own races and described the conduct as political insider trading. "As in traditional financial markets, bad actors may attempt to cheat," the company said. "Regulated exchanges must continue to evolve their systems to address insider threats."

Kalshi’s rules bar candidates from betting on markets related to their own elections. The company said in March it would move preemptively to block such trading. The sanctions come as prediction markets gain popularity by allowing users to wager on everything from soccer matches to government shutdowns. That growth has also drawn increasing concern in Congress and among regulators over the risk of illegal trading.

Pressure on political betting markets is already building on several fronts. The White House warned staff earlier in April not to place bets using inside information. Several state governments have taken legal action, arguing that prediction market operators are violating state gambling laws. More than 40 Democratic lawmakers urged the Trump administration in March to address suspected insider trading by federal employees after a string of unusual bets tied to geopolitical events.

Even Commodity Futures Trading Commission Chairman Michael Selig, a backer of prediction markets, recently said he was working to prevent insider trading tied to government policy matters. Kalshi has previously disclosed disciplinary action against users accused of violating its rules. Earlier cases included a California gubernatorial candidate and a video editor for YouTube streamer MrBeast.

Klein and Enriquez were both candidates for the U.S. House, and each wagered less than $100, according to Kalshi. The company said both admitted the conduct soon after it contacted them. Klein, a Democrat, was fined $539.85. Enriquez, a Republican, was fined $784.20. Both were barred from Kalshi for five years.

Klein said he placed a $50 bet in October 2025 after friends told him people were wagering on his election on Kalshi. He said he did not realize until March 2026 that he had violated the platform’s rules. "This was a mistake, and I apologize," Klein said.

Enriquez lost the Republican primary in Texas’s 21st Congressional District in March 2026. He did not respond to a Wall Street Journal request for comment. Kalshi said the wagers were small, but both cases still violated its rules because the candidates took part in markets tied to their own election outcomes.

The strongest pushback came from Moran, an independent candidate for the U.S. Senate in Virginia. Kalshi said he placed multiple bets in late 2025 and in 2026, including wagers on who would run for office before he announced his own candidacy. The company said Moran initially appeared to acknowledge the violation but later stopped responding. He was suspended for five years and fined $6,229.30.

Moran wrote on social media that he had placed the bets deliberately in order to get caught. He said he wanted to see whether Kalshi would track him and how it would investigate the case. In an interview with the Journal, he said he did not plan to pay the fine and was prepared to take Kalshi to court if necessary.

The case highlights how prediction markets are blurring the line between financial markets and the political process. Candidates and government officials may have access to information on campaign strategy, shifts in public opinion, policy decisions, and diplomatic or security matters that ordinary investors do not. If that information can be turned into profits in betting markets, both the fairness of the political process and trust in the market could be undermined.

Kalshi has emphasized that, as a regulated exchange, it is addressing insider threats. But several states say prediction market operators violate gambling laws, and Congress has also raised concerns about the misuse of inside information. That has left the institutional status of prediction markets unsettled. As trading in political and policy events expands, rules restricting participation by candidates, public officials and campaign staff are set to become more important.

The key question is whether Kalshi’s internal sanctions will lead to legal disputes and tougher regulatory scrutiny. If Moran refuses to pay the fine and files suit, the platform’s authority to enforce its own rules could become a central issue. The Wall Street Journal said prediction markets are rapidly capturing public interest in political events, but this case shows concerns over insider trading and fairness are rising just as quickly.

Hwang Jung-soo, Hankyung.com reporter hjs@hankyung.com