The prediction market platform Kalshi has made an unprecedented decision — permanently banning former Congressman George Santos from trading. In addition to the lifetime ban, he was fined more than $70,000 for market manipulation in a market in which he himself participated. The case involves bets on the President's State of the Union address.

This is the first time in Kalshi's history that a violator has received a lifetime suspension. Previously, the platform limited itself to temporary sanctions, but Santos's actions were so egregious that they required radical measures.

Santos's path: from lies to prison and back

Recall that in 2022, Santos won in New York's third congressional district. However, journalists soon uncovered a shocking truth — virtually his entire biography turned out to be fabricated: from diplomas to jobs. Federal prosecutors charged him with misappropriating campaign funds and stealing voters' personal data.

The House of Representatives expelled Santos in December 2023 — only the sixth such case in U.S. history. He pleaded guilty and received 87 months in prison. But Donald Trump, who called him an "adventurer," commuted the sentence, and Santos was released just three months into his term.

The manipulation scheme on Kalshi

After his release, Santos decided to make some money on the prediction platform. From February 2 to 25, he placed large bets on a contract tied to his own attendance at the State of the Union address. Meanwhile, publicly he said one thing, but in reality planned the opposite — his statements moved the contract's price in the direction he wanted.

In the end, the former congressman earned $17,840 by betting that he would not appear at the event, and indeed skipped it. Kalshi flagged the suspicious activity, and Santos refused to cooperate with law enforcement.

My take on the situation

This case is an important signal for the entire prediction market industry. Manipulation on such platforms undermines their core value — reliability as an indicator of public expectations. Kalshi has demonstrated toughness, but the industry as a whole should consider stricter mechanisms for verifying and monitoring major players. Otherwise, trust in these markets will be eroded, and regulators will have another reason to tighten oversight.