Prediction market startup Kalshi permanently bans ex-US lawmaker Santos from trading

August 31, 2026 10:28 AM EDT

FILE PHOTO: George Santos, who was expelled from the U.S. House of Representatives, departs after the sentencing in his criminal corruption charges at Central Islip Federal Courthouse in Central Islip, New York, U.S., April 25, 2025. REUTERS/Shannon Stapl

Aug 31 (Reuters) - ‌Kalshi permanently ​banned ​former U.S. congressman George Santos from its platform ‌on Monday and imposed a penalty ⁠of $71,356, citing insider trading.

The company said ‌in a disciplinary ‌action that its compliance department had found reasonable cause to ​believe the former lawmaker engaged in illicit trading.

The move comes ⁠as prediction market platforms Kalshi and Polymarket ​have seen a rise in suspicious trading activity, presenting new ​compliance challenges as regulators ‌and law enforcement intensify scrutiny of the growing ⁠sector.

Kalshi had reported Santos to the U.S. Department of Justice in ⁠June after detecting suspicious trading activity from ​his account on the platform, a source told Reuters at the time.

Santos was ‌expelled from Congress over fraud and identity theft. ‌U.S. President Donald Trump commuted ⁠his over-seven-year prison ‌sentence last ​year.

(Reporting by Pritam Biswas in Bengaluru; Editing by Pooja ‌Desai)



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