The prediction market Kalshi on Monday announced its first-ever lifetime ban against disgraced former Rep. George Santos, who previously settled a regulatory investigation into his trades with a hefty fine and a temporary ban from using prediction markets.

The platform also announced penalties against three political candidates who the site accused of wagering on their own races in violation of its insider trading rules.

Kalshi said Santos improperly manipulated the price of contracts on the platform by making public statements about his planned attendance at the State of the Union address earlier this year and then wagering on that contract.