New Jersey is taking its fight against prediction market operator Kalshi straight to the U.S. Supreme Court. What’s at stake? Potentially a landmark ruling on whether prediction markets can operate legally across America. Funny, really. The state that forced open the doors to legal sports betting nationwide may now be the catalyst for equally consequential guidance on an entirely different frontier of innovation.

The Path to the Supreme Court

Both Kalshi and New Jersey’s attorneys have filed a joint status report asking the lower court to pause proceedings while the Supreme Court considers whether to hear the case. The Third Circuit Court of Appeals already ruled 2-1 in Kalshi’s favour, arguing that federal law preempts state gambling restrictions and that the company’s markets operate on solid legal ground. One dissenting judge disagreed, countering that because Kalshi is facilitating gambling, states retain the right to regulate it.

Sound familiar? This mirrors the path sports betting took. After years of legal persistence, New Jersey convinced the Supreme Court to hear its challenge to the federal sports betting prohibition. That 2018 ruling transformed the entire industry, allowing states to legalize sports wagering and fundamentally reshaping the American gaming market.

Expert Opinion Splits on Likely Outcome

Legal observers are divided on how the Supreme Court might rule. Daniel Wallach, a leading voice in prediction market litigation, puts the odds at 70-80% that the court rules against the markets. Kayvan Sadeghi from Jenner & Block supports this view, noting that the court’s conservative majority has historically been sympathetic to states’ rights arguments.

Melinda Roth, though, sees it differently. The law professor believes it’s more of a coin flip, particularly given support for prediction markets from the Trump administration and some Republican quarters. She also estimates it’ll be at least another year before the Supreme Court hears arguments, and she cautions that the 2018 sports betting decision won’t necessarily dictate how judges approach prediction markets.

A Circuit Split Could Accelerate Timeline

Things could move faster if Nevada’s case against Kalshi creates conflicting rulings between federal circuits. A Ninth Circuit hearing on Nevada’s challenge is expected to deliver a ruling within weeks. If the court sides with the state, that split could push the Supreme Court to intervene sooner.

Markets on Polymarket currently give just an 18% chance the Supreme Court accepts the case by year’s end. Whether prediction markets survive in their current form, though, could ultimately depend on how the justices rule. For an industry that’s already proven its staying power through regulation and innovation, the next chapter in this legal saga will be decisive.