U.S. Congress Eyes Ban on Lawmakers' Bets in Prediction Markets
By John Nada·Jun 6, 2026·6 min read
Congressional action targets lawmakers' ties to prediction markets. Regulation looms as integrity takes center stage.
In the halls of Capitol Hill, a storm is brewing over lawmakers’ wallets. On one side, the age-old practice of trading on insider knowledge is under fire. On the other, prediction markets like Kalshi and Polymarket argue for their legitimacy in the financial ecosystem.
Rep. Bryan Steil, R-Wisc., is leading the charge. His initiative aims to stem insider trading by banning current and former federal lawmakers from betting on elections, according to CNBC Business. It's a move that could reshape how these platforms operate, especially in a landscape where senators are already prohibited from such activities.
Steil isn’t against all prediction markets. He’s clear: non-political bets, like those on sports, don't raise the same red flags. But when it comes to elections, the risks of insider trading loom too large. Steil emphasizes the need for explicit rules as these 'novel markets' gain traction among consumers.
The stakes are high in this regulatory debate as the influence of prediction markets continues to expand. Kalshi and Polymarket, key players in the prediction market space, have already shown support for the Senate's stance against lawmaker bets. Kalshi, for instance, has taken a proactive stance by penalizing political candidates who use insider knowledge for financial gain.
The Commodity Futures Trading Commission (CFTC) claims the exclusive right to regulate the industry, per CNBC Business. Its stance adds a layer of complexity, especially as lawmakers consider rules for markets based outside the U.S. The CFTC's involvement underscores the need for clear regulatory frameworks to manage these burgeoning platforms.
On the legislative front, Steil is bundling his prediction market proposal with a bill to prevent lawmakers from trading stocks, a measure that has cleared committee but awaits a House vote. The political clock is ticking with little legislative time left this year, but Steil isn’t alone. Democrats are eager to push their own restrictions forward, with Minority Leader Hakeem Jeffries expressing confidence that the House will mirror the Senate's actions.
As the debate unfolds, one can’t help but notice: the industry is in a race against time. Polymarket, barred from U.S. users on its main exchange, is striving for a legal presence in the States, a testament to its business stakes in this regulatory tussle.
In this clash of ideals and interests, the scales seem to tip toward regulation. Steil’s arguments, bolstered by existing insider trading laws and supported by Kalshi’s compliance efforts, provide a compelling case. The financial integrity of Congress could hinge on these decisions, setting a precedent for how prediction markets integrate with policy and politics.
Rep. Bryan Steil, who chairs the House Administration Committee, is at the forefront of this legislative battle. His proposed legislation is not just targeting current lawmakers but also extends to former federal lawmakers and candidates for office. This comprehensive approach seeks to eliminate any loopholes that could be exploited by those with access to sensitive information.
Steil's initiative is part of a broader effort to maintain the integrity of the legislative process. By focusing on the potential misuse of insider information, the proposal aims to uphold ethical standards within Congress. The inclusion of former lawmakers in the ban highlights the long-term commitment to ethical governance.
The dialogue between prediction market platforms and lawmakers has been ongoing, with meetings taking place to discuss the implications of the proposed legislation. Officials from Kalshi and Polymarket, along with traders, have been actively engaging with lawmakers to make their case. This interaction underscores the importance of collaboration between regulators and industry players to ensure a balanced approach to regulation.
While the Senate has already implemented rules prohibiting senators and their staffers from participating in prediction markets, the House is working on crafting a more detailed legislative ban. This tailored approach seeks to address the unique challenges posed by prediction markets, particularly in the context of political betting.
Insider trading laws serve as a foundational element in the regulation of prediction markets. However, as Steil points out, the perception of lawmakers profiting from their positions remains a significant concern. By explicitly banning such activities, the proposed legislation aims to restore public trust in the political process.
The potential impact of this legislation extends beyond the U.S. borders, as prediction markets based outside the country are also being scrutinized. The goal is to ensure that any market operating within the U.S. adheres to American regulatory standards and consumer protection values. This alignment is crucial for maintaining the integrity of the financial ecosystem.
The CFTC's assertion of regulatory authority over the industry highlights the need for a unified regulatory approach. By centralizing oversight under a single agency, the regulatory landscape can be streamlined, reducing confusion and ensuring consistent enforcement of rules.
Kalshi and Polymarket's support for the Senate's measures reflects their commitment to compliance and ethical conduct. By penalizing political candidates who exploit insider knowledge, these platforms demonstrate their willingness to align with regulatory expectations and foster trust among users.
Steil's proposed legislation, while focused on prediction markets, is part of a larger effort to regulate financial activities within Congress. By attaching the proposal to a bill banning lawmakers from trading stocks, Steil aims to address multiple facets of financial integrity in one legislative package. This comprehensive approach enhances the likelihood of successful passage through the House.
Democratic support for increased regulation of prediction markets adds a bipartisan dimension to the debate. Minority Leader Hakeem Jeffries has expressed confidence that the House will follow the Senate's lead, signaling a strong likelihood of legislative action in the near future.
The race to implement these regulations is driven by a sense of urgency, as the legislative calendar for the year draws to a close. Despite time constraints, the commitment to enacting meaningful reform remains steadfast among lawmakers.
Polymarket's efforts to establish a legal presence in the U.S. highlight the business implications of the regulatory debate. As the largest prediction market, the company's success in navigating the regulatory landscape will set a precedent for other platforms seeking to operate within the U.S. market.
The ongoing discussions between lawmakers, regulators, and industry players signify a critical juncture for prediction markets. The outcomes of these conversations will shape the future of the industry, influencing how it merges with the broader financial and political landscape.
As regulations take shape, the emphasis on consumer protection and ethical conduct remains paramount. The integrity of Congress and the trust of the public are at stake, driving the push for comprehensive and effective regulatory measures.