New Jersey attorney general asks Supreme Court to block Kalshi

New Jersey Attorney General Jennifer Davenport stood at a podium Tuesday and made two arguments at once. The first was about responsible gambling: new regulations requiring online operators to monitor player behavior, flag problem patterns, and provide real-time intervention resources. The second was about Kalshi.

Davenport's decision to pair those two announcements was not accidental. Consumer protection language travels better than jurisdictional theory, and she knows it.

The responsible-gaming rules themselves are straightforward. State-licensed online operators must now track players against specific behavioral criteria, offer live chat or phone access for elevated-risk cases, and intervene when the data warrants it. The framework applies only to online operators and sets uniform standards across the licensed field, so a problem pattern triggers the same response regardless of which platform a player uses. That is the policy goal and it is reasonable.

What Davenport attached to it is more consequential. New Jersey has asked the U.S. Supreme Court to review a Third Circuit ruling that found the Commodity Exchange Act preempts state regulation of sports event contracts on prediction market platforms. The Third Circuit held that Kalshi, Polymarket, and similar platforms answer to the CFTC, not to state gaming authorities. New Jersey argues this reading would hollow out state oversight of sports betting entirely and expose licensed operators to Wire Act liability — a federal criminal statute — while their unregulated competitors operate freely.

The circuit split is real. The Ninth Circuit reached the opposite conclusion on Nevada's attempt to prohibit sports event contracts, expressing doubt that Congress intended to override state gaming law when it passed Dodd-Frank in 2010. Two federal circuits, two incompatible answers, and the Supreme Court has so far declined to weigh in. New Jersey's filing, joined by a substantial majority of states, is an attempt to force that resolution before the lower-court divergence compounds further.

Here is where I depart from the consensus framing: the responsible-gaming announcement is not decoration for the legal filing. It is the argument. Davenport is constructing a record that shows the consumer harm from the regulatory gap — a gap Kalshi occupies. Every intervention a licensed operator is now required to make is one Kalshi is not. That asymmetry is easier to explain to nine justices than a Dodd-Frank preemption question.

The CFTC's carve-out rule, published October 19th, drew the line between house-priced licensed gambling and exchange-style event contracts. That line formally excludes prediction markets from state gambling frameworks at the federal regulatory level. New Jersey is asking the Supreme Court to draw a different line, in a different forum, using a different legal theory. Whether the Court takes the case determines whether that CFTC boundary holds against direct constitutional challenge — or whether states get a second instrument with which to contest it.