Washington vs. the World: How the CFTC’s Lawsuit Against Three States Could Reshape Sports Betting

The federal government just picked a fight it has never picked before. On April 2, 2026, the Commodity Futures Trading Commission and the Department of Justice filed simultaneous lawsuits against Arizona, Connecticut, and Illinois — marking the first time Washington has ever sued states directly over prediction markets. This is not a regulatory skirmish. This is a constitutional battle over who gets to decide whether platforms like Kalshi can operate in your state, and the outcome could fundamentally reshape the sports betting landscape across the country.

What the Federal Government Is Actually Arguing

The CFTC’s core position is straightforward, even if the legal fight is anything but. Under the Commodity Exchange Act, the commission argues it holds exclusive jurisdiction over CFTC-regulated exchanges, meaning state gambling laws are “unconstitutional and invalid” when applied to federally licensed platforms. CFTC Chair Selig put it bluntly: the commission has “exclusive regulatory authority” and will not tolerate “overzealous state regulators” stepping on federal turf.

The timing matters. Arizona had filed 20 criminal misdemeanor charges against Kalshi executives on March 17 — the first criminal charges ever brought against a prediction market operator. The federal lawsuits followed just two weeks later. The message was clear: Washington was done watching states act unilaterally.

The Courts Are Already Moving — and the Results Are Mixed

The judiciary has been moving faster than most expected. On April 7, the 3rd Circuit Court of Appeals ruled 2-1 in favor of Kalshi — the first federal appeals court ruling on this issue. The court found that the CFTC does have exclusive jurisdiction, a significant early win for prediction markets. But the war is far from over.

On April 16, the 9th Circuit is scheduled to hear oral arguments in a separate case involving Kalshi, Robinhood, and Crypto.com against Nevada. Nevada currently has a court-enforced ban on Kalshi sports contracts, and the state is fighting hard to keep it. Here is the critical legal dynamic: if the 9th Circuit sides with Nevada and the states, that creates a direct circuit split with the 3rd Circuit’s ruling. A circuit split on a federal regulatory question of this magnitude almost certainly goes to the Supreme Court. Legal experts who have followed this case closely say it is no longer a question of “if” the Supreme Court gets involved — it is a question of “when.”

The Political Backdrop Is Complicated

This fight does not break cleanly along traditional political lines. The Trump administration dropped the original Kalshi CFTC appeal back in May 2025, a move widely read as a signal of support for prediction markets. Donald Trump Jr. is a strategic advisor to both Kalshi and Polymarket, giving the industry a direct line to the White House. CFTC Chair Selig’s aggressive posture aligns with that backing.

States are pushing back with equal force. Connecticut Attorney General Tong dismissed the federal arguments as “recycled industry arguments.” Illinois Governor Pritzker’s office went further, accusing the CFTC of “carrying water for companies driving well-documented and lucrative insider trading schemes.” These are not mild objections — they reflect genuine policy concerns from states that have spent years building regulated sports betting frameworks and have no interest in watching a federally licensed exchange operate outside those rules.

What This Means If You’re Actually Trying to Bet

For bettors, the practical reality right now is a patchwork that changes depending on where you live. Nevada users have already lost access to Kalshi sports contracts — the court-enforced ban is active. Massachusetts restrictions remain on hold pending further litigation. Arizona, Connecticut, and Illinois are now the subjects of active federal lawsuits, which creates legal uncertainty about what enforcement actions those states can take in the interim.

The bottom line for bettors in affected states: the product you can access on Kalshi — or whether you can access it at all — may look different from what someone in another state sees. Until the courts resolve the jurisdictional question, possibly all the way to the Supreme Court, the availability of prediction market sports contracts will continue to differ by zip code. That is a genuinely unusual situation in American sports betting, and it is only going to get more complicated before it gets cleaner.

The Bigger Picture

Prediction markets are not going away. The volume numbers make that clear, and so does the political backing behind the major platforms. But the legal architecture that governs where and how they can operate is being built in real time, case by case, circuit by circuit. The CFTC’s decision to sue three states simultaneously was a deliberate escalation — a signal that the federal government intends to settle this question once and for all rather than let it play out state by state over the next decade. Whether the Supreme Court ultimately agrees with Washington or the states will determine what the prediction market landscape looks like for everyone who bets on sports in America.