Legal dispute erupts between CFTC and military service member over Polymarket prediction market regulations
Following a court's decision to pause the CFTC's civil proceedings against a service member accused of trading on insider information via Polymarket, the regulatory agency is attempting to intervene in the parallel criminal prosecution.
A military service member named Gannon Ken Van Dyke, who stands accused of generating profits exceeding $400,000 by utilizing confidential information to execute trades involving event contracts on the Polymarket prediction market platform, is mounting resistance against the US Commodity Futures Trading Commission (CFTC) and its attempts to insert itself into his ongoing criminal prosecution.
Through a court submission filed Monday in the US District Court for the Southern District of New York, legal representatives for Van Dyke registered their opposition to the CFTC's attempts to submit an amicus brief concerning assertions made in his legal proceedings. The correspondence highlighted that attorneys for the commodities regulatory body had submitted a notice seeking court authorization to present their perspective on numerous aspects of Van Dyke's defense arguments, including the contention that event contracts available on platforms such as Polymarket should not be classified as "swaps" falling within the CFTC's regulatory jurisdiction.
"The CFTC is no sheep 'friend of the Court' here. It is a regulatory wolf, with its own case against Mr. Van Dyke that it refuses to pursue itself. Rather, like a true coursing predator, the CTFC seeks to advance its own interests through the back door of an amicus brief instead of facing its own case against Mr. Van Dyke head on. This Court should not countenance the CFTC's litigation gambits."
Defense attorneys for Gannon Ken Van Dyke
Federal prosecutors brought fraud charges against Van Dyke in April based on allegations that he executed trades on event contracts through Polymarket concerning the potential removal of Venezuelan President Nicolás Maduro in January, a military operation for which he possessed access to confidential information that was not publicly available. This particular incident has emerged as one of the primary cases that legislators and those who criticize prediction markets reference as evidence of the potential for market manipulation on platforms including Kalshi and Polymarket.
A presiding federal judge has already issued an order requiring the CFTC's civil litigation against Van Dyke to be placed on hold "pending the outcome of the criminal proceeding." Van Dyke has entered a plea of not guilty to all charges leveled against him and a criminal trial is expected to potentially commence in late 2026 or early 2027.