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Kalshi Takes Another Legal Hit in Iowa

Kalshi has suffered another setback in its growing legal fight with the states. A federal judge in Iowa denied the prediction market exchange's request for a preliminary injunction that would have prevented the state from applying its gaming laws to Kalshi's sports event contracts. The ruling does not resolve the…

Caleb Tallman
Caleb Tallman Editor in chief
09/09/2026
Kalshi Takes Another Legal Hit in Iowa

Kalshi has suffered another setback in its growing legal fight with the states. A federal judge in Iowa denied the prediction market exchange's request for a preliminary injunction that would have prevented the state from applying its gaming laws to Kalshi's sports event contracts. The ruling does not resolve the underlying case, but it adds another unfavorable decision to an increasingly complicated national legal picture.

Kalshi filed its lawsuit before Iowa took enforcement action against the company. The exchange believed action could be coming after discussions with Iowa Attorney General Brenna Bird's office and sought protection in advance. Kalshi argued that federal commodities law gives the CFTC exclusive authority over its exchange and preempts conflicting state regulation.

The Judge Wasn't Sold on Kalshi's Main Argument

U.S. District Judge Stephen Locher concluded that Kalshi was unlikely to succeed on its federal preemption argument. His decision focused heavily on the Commodity Exchange Act and whether Congress clearly intended to prevent states from applying their own laws to sports event contracts. Locher found that the statutory language did not go far enough to support Kalshi's position.

The judge also questioned whether the CFTC's "exclusive jurisdiction" language was meant to eliminate state authority. He suggested it could instead establish the CFTC as the primary federal regulator rather than other federal agencies such as the SEC. That distinction cuts directly into the legal theory Kalshi has repeatedly relied upon in its state battles.

Sports Contracts Remain the Problem

Locher also focused on whether sports outcomes fit within the Commodity Exchange Act's definition of swaps. The statute references events or contingencies associated with potential financial, economic, or commercial consequences. Still, the judge found it harder to conclude that Congress intended that language to include the outcome of a sporting event.

The ruling adds Iowa to a growing collection of important state-level fights for Kalshi:

  • Iowa can potentially move toward enforcement while litigation continues.
  • Utah recently rejected a similar federal preemption argument.
  • Nevada scored an important victory at the Ninth Circuit.
  • New Jersey produced a conflicting Third Circuit decision favoring Kalshi.
  • Other state disputes remain active around the country.

Kalshi's Own Marketing Came Back Into the Case

One particularly uncomfortable part of the ruling involved Kalshi's previous advertising. Locher pointed to an advertisement in which the company had described itself using language that closely connected its product with traditional sports wagering. He argued Kalshi therefore should have anticipated that state regulators could view its sports contracts through that same lens.

That does not decide whether Iowa ultimately has legal authority over Kalshi. Preliminary injunction decisions come earlier and ask different questions than a final ruling on the merits. Still, losing protection means Kalshi does not currently have the federal shield it wanted while the Iowa case proceeds.

The Trade Handle Prediction Markets Take

We think the bigger concern for Kalshi is how frequently this argument is now being tested. One unfavorable ruling can be appealed or treated as an isolated setback, but conflicting decisions across several jurisdictions create a much larger operational problem. You cannot easily run a nationwide exchange when courts disagree about which level of government controls the same sports contracts.

Iowa also reinforces why the national legal fight is becoming so important. Kalshi has won meaningful decisions, most notably at the Third Circuit, but states are collecting victories of their own. Until Congress or the Supreme Court provides a clearer answer, the industry's regulatory map looks increasingly likely to remain fragmented.