Prediction markets face legal crossfire as states, feds clash

The emergence of state-level bans and legal challenges against prediction markets began in earnest with Minnesota enacting the nation’s first felony ban on these platforms, criminalizing their operation and advertising. This bold move prompted Kalshi to sue Minnesota, challenging the state's authority to criminalize prediction markets and marking the start of a broader federal-state regulatory conflict. Simultaneously, Arizona escalated enforcement by filing 20 criminal charges against Kalshi, accusing the company of running an illegal gambling business and unlicensed election wagering, signaling aggressive state-level legal actions that questioned the federal regulatory claims of platforms like Kalshi.

Arizona Attorney General Kris Mayes underscored the state's firm stance by asserting that no company can unilaterally decide which laws to follow, emphasizing state sovereignty over gambling regulations. However, this state-level enforcement faced immediate pushback when the Commodity Futures Trading Commission (CFTC) intervened, leading a federal judge to halt Arizona’s criminal case against Kalshi. The CFTC warned that such state actions risk undermining federal oversight and creating dangerous precedents, highlighting the intensifying clash between state authority and federal regulatory jurisdiction over prediction markets.

By spring 2026, the conflict had expanded into a coordinated wave of legal actions, with at least five states—including Wisconsin, New York, Illinois, Connecticut, and Arizona—filing lawsuits against major prediction market platforms for allegedly operating unlicensed gambling operations. Minnesota’s felony ban and Arizona’s criminal prosecutions exemplified the early aggressive state measures, prompting the CFTC to respond with lawsuits against six states to assert its exclusive jurisdiction under the Commodity Exchange Act. This multi-state offensive, largely led by Democratic attorneys general, marked a significant escalation in the federal-state regulatory battle over the governance of prediction markets.

As the legal battles intensified, prediction market operators like Kalshi and Polymarket found themselves embroiled in a sprawling, multi-jurisdictional fight that now involves over a dozen states. The dispute centers on whether these platforms constitute regulated commodity exchanges under federal oversight or illegal betting operations subject to state gambling laws. This unresolved tension has led to prolonged litigation, with states enforcing bans and criminal charges while platforms assert federal preemption, setting the stage for landmark court rulings that could define the future regulatory landscape of prediction markets across the United States.

Since early 2026, the Commodity Futures Trading Commission (CFTC), led by Chairman Michael Selig, has aggressively asserted exclusive federal jurisdiction over prediction markets, challenging state-level regulatory attempts that classify these platforms as gambling. The agency has taken unprecedented legal actions, including filing lawsuits against multiple Democratic-led states such as Wisconsin, Illinois, Arizona, Connecticut, New York, Rhode Island, Minnesota, Kentucky, and New Mexico, to block state bans and taxes on platforms like Kalshi, Polymarket, Crypto.com, Coinbase, and Robinhood. Chairman Selig has publicly emphasized that states cannot override federal law governing financial markets, warning that allowing states to circumvent federal oversight risks creating a fragmented regulatory patchwork that undermines market integrity and investor protections.

The CFTC has not only relied on litigation but also invoked rarely used emergency powers under Section 8A9 to order federally registered exchanges like Kalshi to maintain orderly trading and continue operations despite aggressive state lawsuits and shutdown attempts, such as New York’s $36 billion damages suit. This extraordinary regulatory intervention underscores the agency’s commitment to federal preemption and preventing market disruptions that could push users toward unregulated offshore platforms. Historically invoked only six times, with two recent uses for Kalshi, these emergency actions mark a significant escalation in the federal-state regulatory battle over prediction markets.

Beyond legal battles, the CFTC under Selig is actively shaping the regulatory landscape by proposing new rules to clarify the scope of its authority over event contracts, including those related to sports, politics, and emerging areas like clinical trials and FDA approvals. The agency has solicited over 1,500 public comments on these proposals, signaling a move toward a durable, transparent framework that balances market integrity with responsible innovation. This regulatory initiative is complemented by expanded enforcement efforts targeting insider trading risks, reflecting the CFTC’s broader strategy to solidify exclusive federal oversight and preempt conflicting state gambling laws.

The CFTC’s assertive stance has garnered political backing, notably from former President Donald Trump, who supports maintaining the commission’s exclusive regulatory power over prediction markets. This federal push contrasts sharply with states’ attempts to impose bans, taxes, and shutdowns, creating a high-stakes clash that may ultimately require Supreme Court intervention to resolve jurisdictional conflicts. The agency’s strategic use of amicus briefs, direct lawsuits against states, and public communications, including social media outreach, reflects a comprehensive effort to establish clear federal primacy in this rapidly evolving financial sector.

By early 2026, prediction market platforms like Kalshi had ramped up surveillance and enforcement efforts to combat insider trading, especially ahead of high-profile events such as Super Bowl 60. Kalshi introduced an independent surveillance advisory committee, partnered with security firms, and conducted over 200 investigations in the prior year, referring several cases to law enforcement. Despite these efforts, insider trading incidents involving political insiders, military personnel, and platform employees surfaced, revealing significant risks to market fairness and national security, exemplified by arrests of Israeli army reservists and fines imposed on platform insiders like a MrBeast video editor.

The rise of insider trading in prediction markets has exposed profound challenges in defining and policing non-public information usage, especially as platforms balance open access with integrity concerns. Kalshi's CEO Tarek Mansour highlighted the difficulty in monitoring trades based on information like Super Bowl halftime show set lists, which may not be material or publicly known, while experts debate whether such side bets constitute insider trading warranting government regulation. Meanwhile, a small cohort of accounts exploiting informational edges dominate profits, threatening market sustainability and fairness as many smaller traders lose money rapidly.

High-profile insider trading scandals involving military personnel, such as U.S. Army Special Forces soldier Ganon Ken Van Dyke and a Navy SEAL charged with leveraging classified information on Polymarket, have intensified scrutiny over prediction markets. These cases underscore national security risks and have prompted legislative actions, including resolutions barring members of Congress from trading and calls to ban contracts related to elections, sports, and military actions. The legal battles also reveal regulatory ambiguities, with defenses arguing that prediction market contracts are gambling rather than swaps subject to federal insider trading laws, complicating enforcement efforts.

In response to escalating insider trading risks, prediction market platforms and regulators have adopted advanced technological measures, including AI-driven surveillance tools, to detect suspicious trading behaviors and enforce market integrity. The CFTC has increased daily monitoring, issuing subpoenas and information requests, while platforms like Kalshi and Polymarket have implemented guardrails to restrict trading by politicians, athletes, and others with privileged access. This shift reflects a growing consensus among lawmakers, regulators, and industry leaders that the era of unchecked insider trading in prediction markets is ending, driven by concerns over fairness, national security, and ethical boundaries.

By early 2026, bipartisan congressional efforts coalesced around regulating or banning prediction market contracts tied to sensitive geopolitical and government actions, such as war, terrorism, and assassinations. Spearheaded by figures like Senator Chris Murphy and Representative Greg Casar, the BETS OFF Act emerged in response to allegations that individuals close to former President Trump profited from insider knowledge on platforms like Polymarket, highlighting ethical concerns and calls to bar public officials and their families from participating.

The regulatory landscape is marked by a fierce federal-state jurisdictional battle, with the Commodity Futures Trading Commission (CFTC) asserting exclusive authority to regulate prediction markets as financial derivatives under the Commodity Exchange Act, while over 39 state attorneys general argue these platforms are essentially gambling operations subject to state laws. This conflict has sparked multiple lawsuits, including the CFTC suing Illinois and Connecticut to block state gambling regulations, and states like New York enforcing bans and age restrictions, setting the stage for a landmark Supreme Court decision to clarify regulatory authority.

Insider trading scandals involving prediction markets, such as the case of a U.S. Army soldier charged with using classified information to profit from Polymarket bets on Venezuelan political events, have intensified scrutiny from Congress, regulators, and operators. Platforms like Kalshi and Polymarket have responded by implementing technological guardrails and enhanced market integrity rules to prevent trading by politicians, athletes, and those with access to nonpublic information, while the CFTC has expanded enforcement staff to police insider trading, underscoring the growing recognition of these markets as both a market integrity and national security concern.

The core legal debate revolves around whether prediction market contracts constitute swaps under federal law or gambling under state law, a distinction with profound regulatory and criminal implications. Defendants in insider trading cases argue these contracts are mere gambling wagers, not subject to federal swap regulations, while the CFTC and proponents seek federal designation to preempt state gambling restrictions and enable broader trading. Scholars and courts remain divided, with some advocating for temporary concurrent jurisdiction to empirically assess the best regulatory framework, and others proposing statutory revisions to balance market integrity with the informational value these markets provide.

By early 2026, prediction market platforms have strategically adapted to the fragmented regulatory environment by operating under dual models: federally regulated exchange-based systems and state-licensed gaming frameworks. Companies like Plus500 exemplify this hybrid approach, serving as an infrastructure provider that bridges both worlds—facilitating retail access to Kalshi's CFTC-regulated contracts while acting as the clearing partner for FanDuel Prediction Markets. This dual operation underscores the industry's nimble response to regulatory ambiguity, balancing compliance across divergent jurisdictions.

Despite these adaptive strategies, the future regulatory landscape for prediction markets remains highly uncertain, hinging on ongoing legal battles that could decisively shape the industry's trajectory. The outcomes will determine whether prediction markets are fully integrated into the federal financial system or continue to be governed under disparate state-controlled gaming laws, with profound implications for market structure, economic viability, and regulatory oversight. This unresolved federalism conflict leaves the industry navigating a complex and evolving compliance terrain, where the stakes extend beyond legal definitions to the very viability of prediction markets as mainstream financial instruments.