Legal

Michigan judge casts doubt on legal theory underpinning prediction markets

Published Jun 19, 2026

A Michigan judge expressed skepticism about the legal theory underlying prediction markets during a sharply worded court session, according to Casino.org. The ruling threatens the legal framework that event-contract platforms have relied on. Polymarket and Robinhood, competitors to Kalshi, reportedly saw the writing on the wall and sued pre-emptively. The judicial challenge in Michigan adds another front to the regulatory uncertainty facing the sector.

Why this matters?

Kalshi and its rivals must now litigate on multiple fronts while the CFTC's own rulemaking is still open for comment. A Michigan ruling that invalidates core legal assumptions would force platforms to restructure or suspend contracts before the federal permitting process even concludes.

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

Related Stories

See More
Legal

CFTC proposes first formal prediction market rules, allows sports bets and bans war wagers

Legal

Novig's Ludlow Exchange wins CFTC approval as designated contract market

Legal

Kentucky AG Coleman sues Kalshi and Polymarket over alleged illegal sports betting

Legal

CFTC proposes permissive sports event contract rules, drawing state and tribal fire

Legal

CFTC approves first U.S. bitcoin perpetual futures for Kalshi and Coinbase

Legal

CFTC sues Minnesota and Walz to block nation's first felony prediction market ban