Republican Lawmaker Seeks to Extend Congressional Stock Ban to Prediction Markets
Restrictions designed to curb insider trading by members of Congress may soon stretch beyond traditional stocks and into the world of online prediction markets.
Rep. Bryan Steil, a Republican from Wisconsin who chairs the House Administration Committee, said on Thursday that he intends to broaden a pending congressional stock trading ban so that it also applies to platforms like Polymarket and Kalshi. His comments, reported following a roundtable with journalists, signal a growing concern on Capitol Hill that speculative trading on political events could create new avenues for conflicts of interest.
Steil argued that the public expects lawmakers to be held to strict standards not only when trading conventional financial assets but also when placing bets on elections or policy outcomes.
“In my conversations with members and just the broad public, I don’t think anyone believes that members of Congress should be making trades on elections or making trades on public policy,” he said, underscoring the perception issue as much as the legal one.
The Stock Ban Bill: H.R. 7008
The underlying legislation, known as H.R. 7008, is aimed at eliminating the appearance-and potential reality-of insider dealing by federal lawmakers. As currently drafted, the bill would prohibit members of Congress, their spouses, and their dependent children from buying individual publicly traded stocks.
In addition to banning new purchases, the bill envisions tighter guardrails around the types of financial interests lawmakers can hold. While details continue to be debated, the general thrust is to push members away from actively managed positions in individual companies and toward more neutral vehicles like broad-based funds or blind trusts. The goal is to limit opportunities for members to profit from non-public information obtained through their official duties or to shape policy in ways that might benefit their personal portfolios.
Steil’s new push would add prediction markets to the universe of covered activities, putting them on par with more traditional securities for the purpose of ethics rules.
Why Prediction Markets Are in the Crosshairs
Prediction markets such as Polymarket and Kalshi allow users to buy and sell contracts tied to real-world outcomes-who will win an election, whether a piece of legislation will pass, or what an economic indicator will show on a particular date. Prices reflect the collective market view of how likely a given event is to occur, with contracts typically paying out if the event happens and expiring worthless if it does not.
For ordinary traders, these platforms are framed as tools for speculation, hedging, or even crowd-sourced forecasting. For elected officials, however, they pose a uniquely fraught ethical issue. Members of Congress often possess early insights into legislative timelines, policy shifts, or political dynamics that are not yet fully appreciated by the public. Placing bets on those outcomes-even if technically legal in some contexts-would look to many voters like monetizing privileged access.
Steil’s move suggests lawmakers are increasingly aware that restricting stock trades alone may not be enough. As new markets emerge where political and policy outcomes themselves become tradable instruments, ethics frameworks are struggling to keep pace.
From Insider Trading to “Insider Betting”
The longstanding concern around members of Congress trading individual stocks is that they might gain an unfair advantage from briefings, classified information, or early access to regulatory decisions. The same logic now applies to prediction markets, but with an added twist: the asset being traded is often directly tied to the lawmaker’s own work.
A member of Congress who sits on a key committee, for instance, might be well positioned to know whether a major bill is likely to advance, stall, or be amended. If that person were allowed to place a bet on the bill’s passage on a prediction market, the conflict of interest would be even more direct than in a traditional stock trade. They would not only be trading based on inside information-they would be betting on the outcome of their own institution’s actions.
Even without clear-cut insider information, the optics are troubling. To many observers, a lawmaker wagering on an election result, a policy decision, or a regulatory ruling would appear to be treating public service as a speculative game rather than a civic responsibility.
Platforms Like Polymarket and Kalshi Under Scrutiny
Mentioning Polymarket and Kalshi by name highlights the specific targets of the proposed expansion. Both platforms have gained prominence by offering politically and economically themed markets that attract traders interested in turning predictions into profit.
Polymarket, which operates largely in the crypto ecosystem, has become known for a wide range of event contracts-from election outcomes and global conflicts to cultural and sports predictions. Kalshi, meanwhile, has pursued a more regulated path, seeking approval for certain event contracts through formal channels in the United States.
For lawmakers, the regulatory status of these platforms matters less than the core ethical question: should the people writing laws and overseeing federal agencies be allowed to stake money on the very outcomes they influence? Steil’s answer, and likely that of many of his colleagues, appears to be no.
Ethics, Public Trust, and Political Optics
The push to include prediction markets under H.R. 7008 is as much about public trust as it is about financial compliance. Even if some forms of event betting might be technically permissible today, the perception that members of Congress are financially invested in specific election or policy results can further erode already fragile confidence in government.
Supporters of broad restrictions argue that public service should be visibly insulated from any appearance of self-dealing. By closing off both stock trading and political betting, they hope to signal that lawmakers’ decisions are not shaped by personal financial stakes.
Critics of sweeping bans, however, sometimes contend that too-aggressive restrictions could deter qualified people from seeking office or unfairly limit the financial autonomy of lawmakers’ families. These debates are likely to intensify as the bill’s language around prediction markets is drafted and scrutinized.
The Regulatory Gray Area Around Event Contracts
Another complexity is that prediction markets sit at the intersection of several regulatory regimes, including securities law, commodities regulation, and in some cases gambling rules. Different agencies have drawn different lines about what constitutes a permissible financial instrument and what looks more like unregulated betting.
By moving to expressly bar members of Congress, their spouses, and dependents from using such platforms, lawmakers would be sidestepping some of that ambiguity-at least for themselves. The question would not be whether a given market is fully sanctioned, but whether officials covered by ethics rules are allowed to participate at all.
That approach mirrors how ethics codes often operate: they do not attempt to redefine every underlying legal category but instead establish a stricter standard for people in positions of public trust.
Potential Impact on Lawmakers’ Financial Behavior
If H.R. 7008 passes with the expanded language Steil has proposed, it would mark a significant reshaping of how federal legislators manage their personal finances. Between a ban on individual stock purchases and restrictions on prediction markets, many members would likely need to migrate their holdings into diversified funds, blind trusts, or other passive arrangements.
For spouses and dependent children, the rules could be even more disruptive, particularly if they work in finance or are accustomed to more active trading strategies. The bill’s proponents argue that this inconvenience is a necessary trade-off for restoring confidence in Congress.
In practical terms, enforcement would depend on disclosure rules, compliance checks, and possibly audits to ensure that no one is quietly placing bets on political outcomes via digital wallets or lesser-known platforms. That enforcement challenge will be part of the debate as the bill moves forward.
A Test Case for Modernizing Ethics Rules
Steil’s call to fold prediction markets into the stock ban reflects a broader reality: the financial landscape is evolving faster than many ethics frameworks. Crypto-based platforms, tokenized assets, and event contracts blur the lines between investment, speculation, and gambling in ways that existing rules did not anticipate.
Whether Congress can craft a clear, enforceable prohibition that keeps pace with these innovations will serve as an early test of its ability to regulate not just traditional markets, but also digital-native financial tools that directly intersect with politics.
For now, Steil’s message is straightforward: if lawmakers are barred from profiting from inside knowledge in the stock market, they should not be allowed to do so by betting on elections or policy decisions either. As H.R. 7008 advances, the final contours of that principle-and how broadly it applies to emerging platforms-will be closely watched both inside Washington and across the rapidly growing prediction market industry.