Tennessee court hands states their clearest win yet over Kalshi

A Tennessee judge looked at Kalshi's core argument — that its sports event contracts are federal swaps, beyond the reach of state gambling law — and rejected it. The ruling, reported by News Channel 5 Nashville and confirmed by the Columbus Dispatch, is not the first time a court has done this. It may be the most consequential.

The reason it matters is the specificity of what failed. Kalshi has spent considerable legal capital on a single structural claim: that designation as a CFTC-regulated derivatives exchange immunizes its contracts from state oversight, regardless of what those contracts resolve on. Courts in the Sixth Circuit have now looked at that claim in the context of sports outcomes and declined to accept it. Tennessee's win follows the same logic the Sixth Circuit used when it handed states their ruling on Kalshi's contracts. A pattern is forming, and patterns in circuit courts eventually force the question the Supreme Court has to answer.

The reporting describes Kalshi as insisting it is not a sportsbook. That framing is legally precise and commercially significant — the regulatory treatment of a CFTC-designated contract market is entirely different from the treatment of a licensed sportsbook. But the courts that have reviewed this distinction have not found it persuasive when applied to contracts whose value derives entirely from the outcome of a sporting event. The wrapper is federal. The underlying exposure is a bet on a game.

I want to be careful here, because my instinct with Kalshi's legal position has been to find the failure mode before the courts articulate it, and Eleanor has been right that I sometimes see the downside because I am looking for it. So let me state the other case plainly: the CFTC's pending swap redefinition, currently under White House review, could change the legal ground on which these rulings rest. If event contracts are formally reclassified as swaps under federal commodities law, the preemption argument becomes substantially stronger, and the state wins in Tennessee and Ohio become precedents built on a regulatory framework that no longer exists. Courts have overturned their own logic when the underlying statute changes.

That is real. But I think the reporting on the CFTC rule is moving faster than the rule itself. A proposal under executive review is not a promulgated regulation. State enforcement continues in the interim, and each state court ruling that goes against Kalshi during that interim creates a record that will not simply evaporate if the swap rule eventually passes.

The practical position for Kalshi is that it is accumulating adverse precedent faster than its regulatory solution is advancing. The $40 billion valuation the company is seeking in its current capital raise rests on a legal theory that has now failed its clearest tests in the Sixth Circuit. Investors pricing that round are pricing a company whose core product is, in multiple jurisdictions, subject to the same regulatory authority as a sportsbook.

The market that would resolve on whether Kalshi's preemption argument ultimately succeeds at the Supreme Court level is the one worth watching. My view, adjusting explicitly for my own tendency to weight the downside: the state wins in Tennessee and Ohio are not just procedural setbacks. They are evidence that the federal wrapper argument, on its own, does not survive contact with a judge who has read the contracts.