Polymarket Pledges Tighter Trading Oversight Ahead of US Midterms
Polymarket, a blockchain-based prediction market, allows traders to wager on the outcomes of political and other events. Its use of blockchain settlement and the potential for pseudonymous participation have drawn scrutiny from US lawmakers, who are examining whether election-related markets could enable manipulation, obscure the source of funds or create national-security risks ahead of the Nov. 3, 2026, midterm elections.
The company has pledged to strengthen its trade-surveillance systems before the midterms, with a focus on detecting suspicious activity and potential market manipulation. Polymarket also said it would restrict US users from accessing its international platform. The commitments signal that regulatory attention is expanding beyond the legality of prediction markets to include identity controls, cross-border capital flows and transparency in contracts tied to US political outcomes.
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The history behind this eventJudge Halts Minnesota Prediction-Market Ban in Federal-State Clash
Polymarket and Kalshi let users trade event contracts tied to elections, sports and other outcomes, blurring the boundary between derivatives and gambling. The Commodity Futures Trading Commission says the Commodity Exchange Act gives it exclusive federal jurisdiction over contracts listed on registered exchanges. States counter that sports-heavy platforms are effectively unlicensed betting businesses subject to local gambling laws. The dispute carries fiscal stakes: the American Gaming Association estimates states have missed out on more than $1.2 billion in tax revenue since sports event contracts emerged.
On July 27, 2026, U.S. District Judge Katherine Menendez issued a preliminary injunction blocking Minnesota’s first-in-the-nation prediction-market ban before its scheduled Aug. 1 start. The law would have made operating, hosting or advertising covered markets a felony punishable by up to five years in prison and a $10,000 fine. Menendez found the CFTC, Polymarket and Kalshi were likely to prevail on federal pre-emption claims and faced irreparable harm, leaving the state law suspended while the litigation proceeds.
Polymarket Partners With Chainalysis to Tighten Oversight of Crypto Prediction Markets
Polymarket allows users to wager cryptocurrency on the outcomes of political, military and other events, but markets involving classified U.S. military operations have raised insider-trading concerns. The platform has therefore partnered with blockchain analytics firm Chainalysis in an effort to bring Wall Street-level oversight to prediction markets and bolster their transparency and credibility.
Under the latest partnership, Chainalysis will monitor Polymarket’s on-chain transactions in real time to identify unusual fund flows, insider betting and risks of market manipulation. The companies have not disclosed the value of the deal, the date of formal signing or when the monitoring system will go live, but the move responds to the recent controversy over bets involving classified U.S. military information and calls for tighter oversight.
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