Minnesota Bans Prediction Markets: A Legal War Erupts Over Kalshi and Polymarket

Minnesota has just launched the most aggressive crackdown in the United States against prediction market platforms. Governor Tim Walz has signed a landmark law that bans prediction market sites from operating within the state, effectively targeting popular platforms like Kalshi, and Polymarket. The move has immediately triggered a high-stakes legal battle, as the Trump administration and the Commodity Futures Trading Commission (CFTC) have sued to block the law.

Understanding the Minnesota Ban

The new legislation defines a prediction market as any system that allows consumers to place a wager on a future outcome. The scope of the ban is broad, covering wagers on everything from sports and elections to world affairs, live entertainment, and even the specific word choices of public figures.

Crucially, the law doesn’t just target the platforms themselves; it extends to the services that support them. This includes virtual private networks (VPNs) that users might use to disguise their location to circumvent the ban. Companies that fail to leave the state or cease operations could face felony charges.

Minnesota Representative Emma Greenman, the Democrat who introduced the measure, framed the law as a matter of state sovereignty and protection. “We as a state should decide how best and what regulations we think should attach to gambling, to protect public safety, to protect our kids,” Greenman stated.

The Federal Fight: CFTC vs. Minnesota

The federal government has moved quickly to intervene. The Commodity Futures Trading Commission (CFTC) filed a lawsuit to block the law before it takes effect, asserting that federal officials—not state regulators—should have exclusive oversight of the prediction market industry.

CFTC Chairman Michael Selig criticized the move, stating, “This Minnesota law turns lawful operators and participants in prediction markets into felons overnight.” Selig specifically highlighted the impact on the agricultural sector, noting that Minnesota farmers have long relied on weather and crop-related hedging products to mitigate financial risks. He argued that Governor Walz “chose to put special interests first and American farmers and innovators last.”

The Weather Exception

In response to pressure from the agricultural industry, which uses futures trading on weather as a hedge against storms and harvest-threatening inclement weather, an updated version of the bill was introduced to allow trading on weather. This exception was expected to pass on Saturday.

“Event Contracts” vs. Gambling

At the heart of this legal clash is a fundamental disagreement over what prediction markets actually are. While Minnesota views these platforms as gambling—an activity that is largely illegal in the state outside of tribal-owned casinos—the Trump administration regulates them as “event contracts.”

This distinction is vital because event contracts are treated as financial instruments rather than bets. However, the reality of the platforms often blurs this line. On Kalshi, for example, more than 85% of trading activity is tied to sporting events, including “parlays”—high-risk wagers where multiple outcomes (such as points scored or fouls) must all occur for the bet to win.

A Growing National Trend

Minnesota isn’t alone in its skepticism of these platforms. According to the National Conference of State Legislators, bills seeking to crack down on the prediction market industry have been introduced in seven other states. Hawaii and North Carolina currently have pending bills that would implement statewide bans.

The legal uncertainty is widespread. More than 20 lawsuits have already been triggered over whether states or the federal government hold authority. In Nevada, a judge recently found Kalshi’s offerings to be “indistinguishable” from state-regulated sports gambling, leading the company to pause its sports betting in that state.

Industry Response: “Too Massive to Fail?”

Industry leaders argue that banning these markets is futile and harmful. Elisabeth Diana, a spokeswoman for Kalshi, called the ban a “blatant violation” of the law, comparing the act to “trying to ban the New York Stock Exchange.” Diana warned that such restrictions reduce competition and drive trading activity to offshore platforms.

A spokesperson for Polymarket echoed these sentiments, stating that the ban contradicts the federal government’s “established framework” for regulation.

Despite the legal turmoil, experts suggest the industry’s momentum may be unstoppable. Melinda Roth, a professor at Washington and Lee University’s School of Law, suggests that prediction markets have already become too mainstream to be easily suppressed. “They’ve embarked on a too big to fail strategy,” Roth noted, adding, “It will be hard to put that genie back in the bottle.”

Looking Ahead

As the August deadline approaches, the battle over prediction markets will likely serve as a bellwether for the future of online betting and financial derivatives in the U.S. With billions of dollars in weekly trades and ongoing concerns regarding insider trading and market manipulation, the resolution of the Minnesota case will determine if states can successfully reclaim authority over “event contracts” or if federal jurisdiction will prevail.