Federal Preemption Clash Puts Prediction Markets in Legal Crosshairs
The burgeoning prediction market industry, led by platforms like Kalshi, is confronting a fundamental legal challenge that pits federal regulators against state authorities. At issue is whether contracts allowing users to wager on political, economic, and global events constitute illegal gambling under state law or are legitimate financial derivatives under the exclusive jurisdiction of the federal Commodity Futures Trading Commission (CFTC).
A Battle Over Jurisdiction
This is a classic federalism fight. Kalshi and the CFTC argue the Commodity Exchange Act grants the commission exclusive oversight, preempting a patchwork of state gambling regulations. States like Nevada and New Jersey, with massive commercial gambling industries, contend these are simple bets and fall under their purview. The legal outcome will determine whether prediction markets are regulated like grain futures or Super Bowl wagers.
The conflict is escalating in parallel court battles. On the East Coast, the U.S. Court of Appeals for the 3rd Circuit recently allowed Kalshi to operate in New Jersey during its appeal, with Judge David Porter writing the state's regulation creates the very "patchwork" Congress sought to replace by creating the CFTC. Meanwhile, a federal judge in Nevada sided with the state, with Judge Andrew Gordon invoking Justice Potter Stewart's famous obscenity test, writing, "These are sports wagers and everyone who sees them knows it." That case now moves to the 9th Circuit.
Stakes Rise With Trading Volume
The legal warfare coincides with explosive growth for prediction markets. Monthly trading volume ballooned from $1.2 billion in early 2025 to $20 billion by January, according to TRM Labs. This surge has attracted major media partnerships, including a deal for Fox Corp to integrate Kalshi data across its news networks, further mainstreaming the platforms.
CFTC Chairman Michael Selig has forcefully backed federal control, stating on CNBC that the commission's broad definition of "commodity" includes derivatives on sports, politics, and "virtually everything else." He argued state lawsuits against CFTC-designated exchanges compelled the agency to intervene. The commission has taken direct action, filing its own preemption lawsuits against several states.
Ethical Questions Loom Beyond Courtroom
While the immediate lawsuits focus on jurisdiction, they unfold against a backdrop of intense ethical scrutiny. Platforms have faced criticism for allowing contracts on sensitive topics, including military conflicts. For instance, bets on the fate of a downed U.S. pilot prompted condemnation from Rep. Seth Moulton, who publicly denounced the practice.
The ethical firestorm intensified during the U.S.-Iran conflict. Just before Iran's Supreme Leader was killed in an Israeli airstrike, an account reportedly profited over $550,000 betting on the nation and its leadership, raising alarms about potential insider trading on geopolitical events. This occurred as escalating rhetoric and military action roiled global markets and as the Justice Department provided legal reviews for potential strikes amid war crime allegations.
Kalshi maintains it has safeguards against insider trading, citing February disciplinary action against a YouTube editor and a political candidate. However, the core legal fight currently sidesteps these content moderation issues, focusing squarely on the power struggle between Washington and state capitals.
With the 9th Circuit hearing Nevada's case before a panel of three Trump-appointed judges, and the 3rd Circuit's favorable ruling for Kalshi, the stage is set for a potential circuit split that could force the Supreme Court to decide the future of a multibillion-dollar industry operating at the intersection of finance, gambling, and information.
