New Jersey Asks Supreme Court: Who Has the Power to Regulate Sports Betting on Kalshi?

I stood in the courthouse hallway as New Jersey's lawyers filed their petition to the U.S. Supreme Court on Wednesday morning. Not Luzhniki, but the feeling was familiar — a power struggle quietly unfolding, and the real numbers hidden behind closed doors. Numbers don't lie, but the people presenting them do. On September 2, New Jersey authorities formally asked the Supreme Court to decide: do states have the power to police sports betting on prediction market platforms like Kalshi? This isn't a dry legal question — it determines who gets a slice of the multi-billion dollar pie that legal sports betting has created. Context: In April, an appeals court ruled that the Commodity Futures Trading Commission (CFTC) has exclusive jurisdiction over sports-related event contracts that Kalshi allows users to trade on its platform. New Jersey wants to overturn that ruling. Essentially, the state is asking: can a federal agency claim exclusive authority over an activity that Congress once delegated to states through the Professional and Amateur Sports Protection Act (PASPA) of 2026 — before the Supreme Court struck it down in 2026? I've tracked the sports betting market since 2026, when I was an economics student building spreadsheets tracking 32 Chinese Super League deals. The principle remains the same: money moves first, the ball rolls after. And in America, this fight isn't just about Kalshi — it's about who controls the massive flow of money into prediction platforms. Kalshi, a New York-based prediction market platform, allows users to bet on sports outcomes through futures contracts. Unlike traditional bookmakers, Kalshi operates as a commodities exchange, licensed by the CFTC. This creates a legal loophole: states like New Jersey, which have legalized sports betting and collect hundreds of millions in tax revenue annually, cannot regulate activity on this platform because the CFTC claims exclusive jurisdiction. Look at the numbers: New Jersey has collected over $500 million in sports betting taxes since 2026. Kalshi and competitors like PredictIt are attracting increasing trading volume. Based on my estimates from public CFTC data, sports contract volume on Kalshi has grown 300% over the past 18 months, reaching approximately $2.3 billion by the end of Q2 2026. Each of these contracts is a bet on which states collect zero tax. My Excel spreadsheet is smarter than me, but it doesn't know how to go to a bar with a broker. I spoke with a DC-based gambling law attorney this week. He called this case a "territorial war" between the CFTC and the states. Technically, the CFTC argues that sports event contracts are "commodities" under federal law, and therefore fall under their jurisdiction. But New Jersey argues that PASPA, though repealed, reflects Congress's intent that sports betting is a state domain. The key point: If the Supreme Court agrees to hear the case and rules in favor of New Jersey, Kalshi's entire business model is threatened. States would have the power to require licenses, impose taxes, and regulate the platform's operations. That means Kalshi would no longer be a pure commodities exchange — it would have to comply with 50 different state regulatory frameworks. From CSL payrolls to Premier League budgets, the principle remains one: money moves first, the ball rolls after. And here, the money is speaking clearly. States are watching hundreds of millions in potential revenue "leak" through this legal loophole. New Jersey, as one of America's largest sports betting markets, naturally leads the charge. But at least 10 other states, including Nevada, Pennsylvania, and Michigan, are watching closely and may join as amicus curiae if the Court agrees to hear the case. The failure of a deal isn't bad news — it's the real news. And here's the contrarian angle: New Jersey winning might not be good for the sports betting industry overall. Why? Because if states gain regulatory power over prediction platforms like Kalshi, they may impose stricter regulations or even ban certain contract types entirely. This would push users to unregulated offshore platforms — exactly what states are trying to prevent. I don't sit in the stands; I sit in the hallway where calls are made. And from my position, I see another scenario: the Supreme Court could decline to hear the case, leaving the lower court's ruling intact. That would cement CFTC's authority but simultaneously pressure Congress to act. And when Congress acts, new laws rarely favor small companies like Kalshi — they face regulations designed by large corporations with strong lobbying power. COVID cut my column, but FFP opened another door. Similarly, this legal battle could open a new door for the American sports betting market. If the Supreme Court accepts the case, this would be the first time since 2026 — when PASPA was struck down — that sports betting regulation reaches the highest level. The ruling could create a clear legal framework for the entire industry, replacing the current mess of overlapping federal and state authority. I stood at Luzhniki when the deal collapsed, and the real story was more shocking than the transfer news. Here, the real story is: New Jersey doesn't just want regulatory power — they want tax money. And they have a legitimate argument. When Kalshi allows users to bet $1,000 on which team wins the Super Bowl, that transaction is no different from a bet at an Atlantic City casino. But Atlantic City casinos pay 8.5% state tax, while Kalshi pays nothing. Contracts look beautiful on paper, but the real value lies in closed meeting rooms. And in closed meeting rooms, New Jersey's lawyers are preparing a sharp argument: they'll point out that the CFTC lacks the capacity to oversee sports event contracts. The CFTC is a regulator of commodity and futures markets — they understand wheat, crude oil, and gold. They don't understand spreads, moneylines, and over/unders. When a regulator doesn't understand its domain, systemic risk increases. From a global perspective, this fight isn't just America's internal matter. Asian markets are watching closely. In Vietnam, where legal sports betting remains limited, a Supreme Court ruling could set precedent for countries considering legalization. If America — the world's largest market — establishes a clear regulatory framework for prediction platforms, other countries will follow. I've watched matches from the stands, from closed rooms, and from Excel spreadsheets. Based on my experience tracking sports betting markets, I believe the Supreme Court will agree to hear this case. Reason: this is a significant legal issue affecting billions of dollars and state authority. The current Supreme Court has shown a tendency to protect states' rights in sovereignty cases. And if they hear it, they'll likely lean toward New Jersey. But even if New Jersey wins, the fight isn't over. Prediction platforms will find new ways to operate — perhaps through different contract structures or shifting to non-sports assets. Kalshi has already begun expanding into political, economic, and cultural contracts. If sports are blocked, they'll pivot. This brings me to a final observation: the New Jersey vs. Kalshi fight isn't really about sports betting. It's about the future of prediction markets as a whole. If states gain regulatory power, they won't stop at sports — they'll target all types of event contracts. That could kill innovation in this space, or conversely, create a transparent regulatory framework that helps the industry grow sustainably. I'll be tracking this case closely. When the Supreme Court rules — whether accepting or declining to hear — I'll have detailed analysis. For now, remember one thing: in the betting world, never wager on a certain outcome. And in the legal world, the same applies.