Online prediction markets like Kalshi and Polymarket are facing an intense wave of scrutiny from state lawmakers and federal regulators, sparking a high-stakes battle over the future of digital wagering in the U.S. According to Stateline, state officials at the National Conference of State Legislatures summit in Chicago forcefully criticized these platforms, arguing they operate as unregulated sportsbooks rather than legitimate commodity exchanges.
The clash highlights a growing regulatory fault line between federal oversight and state authority. While platforms permit users to speculate on real-world events ranging from sports outcomes to geopolitical developments, state leaders warn the sites bypass local age restrictions, consumer protections, and tax frameworks.
State Lawmakers Push Back Against Prediction Platforms
State leaders contend that platforms such as Kalshi and Polymarket allow users to skirt state gambling laws under the guise of financial trading. According to Stateline, Iowa Republican state Sen. Dan Dawson told the Chicago summit that a group of high school students in his state easily enrolled in Kalshi to bet on World Cup matches, bypassing Iowa’s legal online sports betting age requirement of 21. Dawson noted that a legislative subcommittee studying the issue could not obtain basic reach data from prediction market operators.
The friction has already spilled into the courts. In March, Kalshi preemptively filed a lawsuit in an effort to block Iowa Attorney General Brenna Bird from taking civil or criminal enforcement action, according to Stateline. States argue that in addition to eroding local sports gambling revenues, the platforms lack consumer oversight, invite potential insider trading, and exacerbate problem gambling.
Federal Jurisdiction and Industry Defense
Industry representatives maintain that prediction markets serve a vital economic purpose and fall outside state jurisdiction. Sara Slane, Head of Corporate Development at Kalshi, told lawmakers in Chicago that prediction markets function as derivatives similar to stock futures and require a unified national standard instead of a fragmented state-by-state regulatory approach, as reported by Stateline. Kalshi is regulated by the Commodity Futures Trading Commission (CFTC).
The CFTC has actively sought to protect its regulatory territory, filing lawsuits against both red and blue states. Meanwhile, a coalition of 44 state attorneys general fired back earlier in the week, writing to the federal agency to argue that it lacks the legal authority to regulate sports-related event contracts governed by state gambling laws, according to Stateline.
Congressional Action Targets Sensitive Wagers
The regulatory tug-of-war has also reached Capitol Hill. According to RG.org, congressional Democrats introduced a new bill aimed at banning prediction market betting on elections, government actions, war, and sports. The proposed legislation represents the most aggressive federal attempt to rein in the sector as critics voice ethical concerns over markets tied to military conflicts and political developments.

Proponents of prediction markets argue the platforms function as efficient forecasting tools that aggregate information faster than traditional polling. According to RG.org, Kalshi has implemented new safeguards—including restrictions preventing politicians and athletes from wagering on relevant markets—to curb insider participation. With federal legislation pending and state lawsuits mounting, the ongoing dispute threatens to redefine the boundaries of online wagering in the United States.
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