Kalshi, the political betting exchange, issued its first lifetime ban against George Santos, the former New York representative, over insider bets placed on his State of the Union attendance in February 2026, according to a disciplinary notice posted August 31.
Santos placed bets on whether he would attend the address during a window when his own attendance status remained undisclosed to the public, then made public statements intended to influence the market, the exchange said. Kalshi fined Santos $71,356 and barred him from the platform permanently for market manipulation and failure to cooperate with its investigation.

Kalshi operates under a no-action letter from the Commodity Futures Trading Commission that permits political event betting on outcomes including congressional votes, election results, and State of the Union attendance. The exchange has grown to handle billions in notional volume since launching in 2021. Its rules prohibit participants from trading on material nonpublic information and require disclosure of any positions that could be affected by a bettor's actions or statements.

Santos was expelled from the House in December 2023 after a damaging ethics report. His bets on his own State of the Union attendance in early 2026 created a direct conflict: knowledge of his attendance plans before public announcement gave him an edge over other bettors, and any public statement he made about attending or not attending could move the market in his favor. Kalshi determined he had exercised both advantages.
The exchange has brought enforcement actions before, but never issued a lifetime ban. Kalshi's disciplinary framework allows escalating penalties from warnings to temporary suspensions to permanent exclusion. Santos's case deployed the harshest remedy.
Kalshi did not disclose details of Santos's failure to cooperate, but exchange enforcement typically includes requests for trading records, communications, and sworn testimony. Santos's refusal to engage with that process separately violated the platform's terms and strengthened grounds for the lifetime ban.
Kalshi operates in a narrow regulatory window; if courts or Congress narrow that window, or if high-profile enforcement fails to deter repeat violations, political pressure to shut down the markets could mount. If Kalshi has not documented a clear pattern of successful enforcement actions by the time the CFTC's no-action letter faces renewal or legislative scrutiny, regulators may face pressure to revoke the exemption altogether.