Kalshi has issued its first-ever lifetime ban to former U.S. Rep. George Santos after concluding he failed to fully cooperate with an insider-trading investigation. He is also being fined $71,356, according to a filing (PDF) on its website. Engadget reports: It was reported in June that Santos was under investigation from the Department of Justice (DOJ) and the Commodity Futures Trading Commission (CFTC) over insider trading. Prediction markets like Kalshi allow users to buy contracts or shares in the outcome of events. Participants don't necessarily have to wait for an event to resolve before selling these contracts and cashing in. Santos allegedly bought contracts on Kalshi indicating that he would not attend this year's State of the Union speech after weather disrupted his travel plans. According to the CFTC, Santos then sold those contracts for a profit after claiming on social media that he would be in attendance. The former congressman is said to have made more than $17,500 through this scheme, which Kalshi reportedly detected and flagged to authorities. In July, Santos agreed to pay over $35,000 to settle the CFTC's claims against him. The agency also issued him a three-year trading ban. Kalshi, however, doesn't plan to allow Santos back on its platform in 2029 (or anytime after that). The company confirmed to The Wall Street Journal this was the first time it had given anyone a lifetime ban and that it did so because Santos didn't fully cooperate with its investigation. He can appeal the decision to the CTFC.Read more of this story at Slashdot.