Criminal case prompts federal judge to clarify prediction market rules

Van Dyke criminal case puts prediction market swap definition before a federal judge

A federal judge in the Southern District of New York is now holding a question that the CFTC has spent two years avoiding: whether event contracts on platforms like Polymarket are "swaps" subject to commodity regulation, or something the agency never had authority over in the first place.

The CFTC wanted to offer its answer through an amicus brief in the criminal case against Gannon Ken Van Dyke, the soldier charged with fraud after allegedly pocketing more than $400,000 by trading a Polymarket contract on Venezuelan President Nicolás Maduro's removal — information Van Dyke, according to prosecutors, had access to before anyone else did. His lawyers blocked the attempt Monday, filing a letter that called the CFTC a "regulatory wolf" trying to advance its civil case through a back door after a judge had already stayed that civil proceeding pending the criminal outcome.

The image is blunt and the strategy behind it is sharper. If the CFTC shapes the court's understanding of what event contracts are — inside a criminal proceeding where the regulator has no formal standing — it writes the definitional record without having to survive cross-examination on its own jurisdictional claims. Van Dyke's defense understood this and closed the door.

What remains open is the underlying question, and it is one the whole industry needs answered. The defense argument is that Polymarket contracts are not swaps. If a federal criminal court accepts any part of that framing, even implicitly, it complicates every enforcement posture the CFTC has built around prediction markets. The Van Dyke case was supposed to be a cautionary example of insider manipulation on unregulated platforms. It has become, through the defense's procedural maneuvering, a venue where the regulatory foundation itself is being contested.

I have watched definitional fights like this one resolve in ways that surprised everyone who thought the legal text was settled. The mechanism that matters here is sequencing: the criminal trial could begin as early as late 2026, which means a federal judge issues findings on contract classification before Congress has passed anything and before the Ninth Circuit has finished with Kalshi. That order of events matters. Courts read each other. A criminal court's implicit or explicit treatment of event contracts as outside CFTC jurisdiction gives Kalshi's lawyers a citation they are not currently holding.

The reporting focuses on the amicus ruling as a procedural win for the defense. I think the more durable consequence is that the CFTC now has to wait. It cannot shape this record from the outside. It cannot pursue Van Dyke civilly while the criminal case runs. Its most visible prediction-market enforcement action is sitting in procedural suspension while a federal court works through exactly the definitional question the agency needs answered in its favor. That is a meaningful loss of momentum in a period when state regulators — Nevada, Illinois, Washington — are moving quickly and filling whatever vacuum the federal framework leaves.