Legal

State gaming lawmakers join push for Supreme Court to hear Kalshi case

Published Sep 24, 2026

The National Council of Legislators from Gaming States (NCLGS) filed an amicus brief urging the U.S. Supreme Court to hear a case involving prediction market platform Kalshi. The lawmakers, representing states with established gaming industries, warned that a ruling preventing states from regulating prediction markets could affect existing gambling frameworks. The filing centers on the regulatory status of Kalshi's event contracts.

Why this matters?

NCLGS adds state legislative muscle to a cert petition pool that already includes New Jersey and bipartisan federal lawmakers. Kalshi, each new voice at the Court makes a grant harder to deny and a denial harder to explain. The justices rarely take cases, but a split between the Third Circuit's Kalshi backing and the Ninth Circuit's twin rejections on tribal lands gives them a textbook reason to intervene.

A grant would freeze the state-by-state enforcement patchwork in Nevada, Connecticut, and California tribal lands. A denial leaves Kalshi fighting parallel state suits with circuit precedent running against it. Legal spend compounds faster than any single case resolves. Traders hold positions whose validity shifts with geography, not regulation. The NCLGS brief signals that states themselves want clarity, not more border-by-border litigation.

The bigger picture

Adds to the petition-side briefs pressing the Supreme Court on Kalshi preemption this quarter, joining New Jersey's state filing.

In this story
Add Prediction News as a preferred source on GoogleGet our prediction-market coverage prioritized in your search results

Related Stories

More in Legal
Legal

CFTC warns prediction markets to drop American-style moneyline odds

Legal

Crypto.com and Robinhood petition Supreme Court to settle sports event contract preemption

Legal

New York sues Polymarket US as illegal gambling business

Legal

Ninth Circuit blocks Kalshi sports contracts on two California tribal lands

Legal

New Jersey and state lawmakers ask Supreme Court to rule on Kalshi sports contract legality

Legal

Kalshi and Montana dismiss federal lawsuits over state gambling authority