Locher's Iowa ruling gives states a second preemption theory to deploy

Judge Stephen Locher did not simply deny Kalshi's injunction request in Iowa. He handed every state attorney general in the country a working legal argument, written in plain English, that they did not previously have in consolidated form.

The ruling turned on a question of statutory grammar. Kalshi's preemption claim rested on the Commodity Exchange Act's exclusive jurisdiction provision, which Locher read as covering swaps and contracts for future delivery — instruments whose underlying variables are prices, interest rates, the kind of thing that moves in financial markets. A Minnesota Vikings win is not that kind of variable. Locher made the distinction carefully, noting that in ordinary usage a sporting event is not an "occurrence" in the sense the CEA contemplates. Congress wrote the preemption language, he said, with commodity markets in mind. If it had meant to sweep state gambling law aside entirely, it would have said so.

That is the argument Kalshi has been losing in multiple jurisdictions, but Locher's version is tighter and more portable than earlier rulings. Attorneys general in Ohio, Massachusetts, Washington, Wisconsin, and New Mexico — states where Underdog just filed its own round of preemption suits — now have a judicial template with clear textual grounding. A state lawyer drafting a brief today does not need to construct the argument from scratch. Locher did it.

Locher added something the other rulings have not emphasized as sharply: Kalshi launched in Iowa without first establishing whether the attorney general or the Iowa Racing and Gaming Commission considered its contracts illegal gambling. The judge called this a problem of the company's own making. That framing matters. Courts in subsequent cases will read it and notice that the industry's litigation posture has been to operate first and litigate second, treating federal registration as permission rather than as one layer of a multi-regulator system.

The consensus read of this ruling is that it is one more data point in a pattern — Kalshi loses another injunction, the Supreme Court question remains open, the industry waits for resolution. I think that undersells what Locher built here. The preemption cases that came before this one were mostly about the CFTC's regulatory authority as a matter of agency power. Locher reframed the question as one of congressional intent and ordinary language. That framing is considerably harder for the industry to argue around, because it does not depend on how broadly or narrowly you read the CFTC's mandate — it depends on what Congress actually wrote, and Congress wrote about grain prices, not game scores.

Underdog's simultaneous decision to file in five states where Locher's logic now has judicial weight is a structural problem the company may not have fully priced when it abandoned its DFS licenses. It traded a regulated product for a federally registered one and walked directly into a jurisdiction where the federal registration argument just lost in district court with a clearly reasoned opinion attached.