Kalshi and Polymarket Challenge Minnesota Prediction Market Ban

Kalshi and Polymarket Challenge Minnesota Prediction Market Ban – Kalshi and Polymarket have filed a lawsuit against Minnesota to prevent the enforcement of a new statewide law banning prediction market platforms. The firms assert their offerings are federally regulated products, while Minnesota defends the law as a measure against gambling risks.

What Happened

Two prediction market firms, Kalshi and Polymarket, have initiated legal action against the state of Minnesota. This lawsuit seeks to block the implementation of a new state law that prohibits prediction market platforms within Minnesota’s borders, according to Markets Insider. The new legislation, signed into law by Governor Tim Walz on May 18, is scheduled to become effective on August 1.

The core of the dispute centers on the nature of prediction market contracts. Kalshi and Polymarket contend that the contracts they provide are lawful financial instruments falling under federal regulation. Conversely, Minnesota argues the law is necessary to address emergent forms of gambling and to safeguard consumers and minors, a position advocated by proponents such as Democratic Representative Emma Greenman (Markets Insider).

Key Details

• Minnesota’s new law criminalizes the operation, hosting, or advertising of prediction markets within the state, reportedly making it a felony (Markets Insider).
• This legislation is the first in the U.S. to explicitly ban such platforms, encompassing contracts related to entertainment, elections, sports, weather, public health, and armed conflicts (Markets Insider).
• Kalshi and Polymarket filed their case in the U.S. District Court for the District of Minnesota, requesting a temporary injunction to halt the law before its August 1 effective date (Markets Insider).
• Both firms argue that their event contracts are subject to the exclusive jurisdiction of the Commodity Futures Trading Commission (CFTC) (Markets Insider).
• The CFTC has also filed a separate lawsuit against Minnesota, maintaining that event-based contracts should be regulated at the federal level rather than by individual states (Markets Insider).
• A federal judge in Minneapolis heard arguments on July 2 but did not issue an immediate ruling (Markets Insider).

Why It Matters

This legal challenge carries significant implications for the regulatory landscape of prediction markets in the United States. The outcome of the case could establish precedent regarding the extent of state authority to regulate these platforms, particularly concerning their categorization as either financial products or gambling instruments, as stated by Markets Insider. The firms also assert that a ban could inadvertently direct users towards unregulated or offshore platforms, potentially undermining U.S. regulatory oversight (Markets Insider).

Originally reported by: Markets Insider. Published: 7/3/2026, 5:45:09 PM.