Iowa judge cites Congressional silence to deny Kalshi preemption bid

Judge Stephen Locher's decision in the Iowa case arrived the same week the 10th Circuit turned away Kalshi's emergency appeal in Utah, and the geography of the problem is becoming difficult to argue around.

Locher denied Kalshi's preliminary injunction request, which would have blocked Iowa from applying its gambling statutes to the platform's sports event contracts. He did not rule against Kalshi on the merits entirely. He found that on the threshold preemption question — the one Kalshi needs to win everywhere — the Commodity Exchange Act simply does not say what Kalshi needs it to say.

The operative sentence from Locher's decision: "If Congress intended to pre-empt state gambling laws when it enacted and amended the Commodity Exchange Act, it should have been clear about that pre-emption. The text of the Commodity Exchange Act does not meet the mark."

This is the statutory construction argument that has been waiting to crystallize, and Locher's framing of it is clean enough to travel. Federal preemption, under the Supremacy Clause, does not flow from regulatory overlap alone. Express preemption requires Congress to have said so. Field preemption requires a scheme so comprehensive that state law has no room to operate. Conflict preemption requires compliance with both to be impossible, or state law to stand as an obstacle to federal objectives. Locher is saying none of those conditions are met here, at least not clearly enough to grant emergency relief — and in preemption doctrine, ambiguity cuts against the party seeking to displace state authority.

The CFTC's jurisdiction under the Commodity Exchange Act runs to swaps and contracts of sale of a commodity for future delivery. Locher concluded that sports event contracts are not obviously within that mandate, and that Congress, when it amended the CEA through Dodd-Frank, gave the CFTC authority to review event contracts — including power to prohibit them — without ever stating that this supervisory role displaced state gaming law underneath.

That reading is conservative and textually defensible. Kalshi reads the same provisions as creating an exclusive federal lane. Both readings are available in the statute. That is precisely the problem.

The Iowa order also noted that Kalshi's own marketing language — describing its products in terms that sound like betting — has entered the record. Courts do not typically treat marketing copy as dispositive, but when a company is arguing its products are categorically different from what state gambling law covers, its own promotional descriptions become friction.

What Underdog's senior vice president Stacie Stern said publicly this week makes the same point from the other direction: with divergent rulings accumulating across jurisdictions, the industry itself is now arguing that only a Supreme Court decision will resolve the structural question. That is not a litigation posture adopted from a position of strength. It is an acknowledgment that the lower courts are not converging.