Congress demands probe of prediction market trades placed before Iran war launched

Prediction markets are online platforms where users buy and sell contracts tied to the probability of real-world events. Kalshi and Polymarket are the two largest U.S.-accessible platforms. By early 2026, they collectively processed more than $5 billion in monthly contract volume across politics, elections, sports, and current events.

Blockchain analytics firm Bubblemaps identified six newly created crypto wallets on Polymarket that collectively made $1.2 million betting the U.S. would strike Iran on Feb. 28. All six wallets were funded within the 24 hours before the attack; all six accounts were created in February 2026. A Polymarket account called 'Magamyman' alone made more than $553,000 — placing its first trade 71 minutes before the strikes were publicly reported, when the market had the event at only a 17% probability. Bloomberg separately confirmed $529 million in total contract volume on Iran strike timing across Polymarket.

A nearly identical pattern appeared in January 2026, when a previously unknown Polymarket account made $436,000 betting on Venezuelan President Nicolás Maduro's capture just hours before U.S. forces detained him. Congressional investigators cited both episodes as evidence of a recurring pattern rather than isolated coincidences, arguing that the same anonymity and regulatory gap enabled profitable insider positions in both operations.

The identities of the traders who placed the pre-war positions were not publicly known. Both Kalshi and Polymarket allow account creation using cryptocurrency wallets, which are pseudonymous. Tracing a wallet to a real person requires either voluntary disclosure, a court order, or blockchain forensics — none of which had been completed as of March 3.

Federal securities law prohibits insider trading using material non-public information to trade securities. Prediction market contracts are not securities — they are commodity contracts regulated by the Commodity Futures Trading Commission. No law currently bars a federal employee from trading on prediction markets using knowledge gained from their government work. The STOCK Act prohibits Congress members from trading securities on non-public information but does not cover prediction market contracts.

The CFTC's jurisdiction over political event markets was itself a recent and contested legal development. Kalshi sued the CFTC in 2023 after the agency tried to block political event contracts. Kalshi won in both federal district court and the 🏛️D.C. Circuit Court of Appeals in 2024, cementing prediction markets as lawful commodity products under CFTC oversight — and removing state-level gambling prohibitions as a backstop.

Donald Trump Jr. sits on Polymarket's advisory board and his venture capital firm 1789 Capital invested tens of millions into the platform. Both the DOJ and the Consumer Financial Protection Bureau had active investigations into Polymarket before Trump took office; both were dropped after his return to the White House. Trump also nominated a former Kalshi board member, Brian Quintez, to chair the CFTC — the agency regulating Kalshi — producing a layered conflict of interest between the regulated industry and its regulators.

Kalshi CEO TMTarek Mansour responded to the Khamenei death-betting controversy by issuing partial refunds under the platform's death carveout rule and posting: 'We don't list markets directly tied to death.' The decision infuriated traders who had correctly predicted the outcome but were denied full $1 payouts. Kalshi separately confirmed it had suspended and fined two users for insider trading on unrelated markets — including a visual effects editor who had traded on advance knowledge of a reality TV show's outcome.

Six Democratic senators sent CFTC Chairman MSMike Selig a letter before the war launched demanding he prohibit contracts tied to war, assassination, and terrorism — categories already technically prohibited under Commodity Exchange Act provisions. Rep. Mike Levin and Sen. Chris Murphy both called for immediate congressional investigations after the trades surfaced. Murphy pledged legislation to ban war-related prediction market contracts. Citizens for Responsibility and Ethics in 🌲Washington filed public records requests for all White House and NSC communications related to prediction market activity in the seven days before the war launched.

Bloomberg's editorial board called for Kalshi and Polymarket to stop offering contracts related to war, military operations, and regime change entirely — arguing that beyond the moral dimension, war betting created a national security risk. If insiders could signal classified operations through prediction market price movements visible to foreign intelligence services, the markets themselves could become an intelligence leak vector. The Bloomberg editorial said: 'Given that handing such information to an enemy would be an act of treason, should risking intelligence leaks through price signals be seen as any less traitorous?'