It's Time to Permanently Ban Elected Politicians from Trading on Polymarket

When a sitting senator can log into a prediction market and place a bet on whether a war will start, whether a bill will pass, or whether a foreign leader will fall — and then walk onto the floor and help decide exactly those outcomes — something has gone badly wrong. The fix is not complicated, and it is not partisan. Elected officials should be permanently barred from trading on Polymarket and every platform like it. A temporary rule is not enough. This needs to be law.

The problem is no longer hypothetical

For years, the case against politicians profiting from their positions centered on the stock market — the well-worn image of lawmakers buying shares ahead of news only they could see. That fight is still going on. But prediction markets have opened a second, arguably worse, front.

Platforms like Polymarket and Kalshi let users buy "event contracts" — bets that pay out if a specific thing happens: an election result, a piece of legislation, a military strike, a government action. The platforms have exploded since launching to U.S. users, and the political bets are no longer a sideshow. They are catnip for anyone with access to nonpublic information about what the government is about to do.

The examples are not subtle. A Polymarket trader reportedly made around $300,000 correctly betting that President Biden would issue specific last-minute pardons. Multiple accounts created shortly before U.S. military action earned roughly $1 million betting that the United States would strike Iran — some of the wagers placed mere hours before the strikes began. One account reportedly won $553,000 on a bet tied to the death of Iran's Supreme Leader. An Army Special Forces sergeant has been criminally charged with allegedly using classified information to win nearly $410,000 on Polymarket bets connected to the U.S. operation that captured Venezuela's Nicolás Maduro.

And it reaches into electoral politics directly. Campaign staffers have told reporters that betting on their own candidates — using unreleased internal polling to buy cheap contracts before the public sees the numbers — is simply commonplace. Kalshi has already suspended and fined candidates caught betting on their own races. One law-professor analysis estimated that roughly $143 million was earned on Polymarket over two years using apparent insider information, flagging more than 200,000 suspicious bets.

This is the environment in which elected officials currently retain the legal ability to trade. That is indefensible.

Why prediction markets are uniquely dangerous for politicians

A politician trading individual stocks has a conflict of interest. A politician trading on a prediction market has something closer to a financial incentive to shape events themselves.

Consider the difference. If a lawmaker owns shares in a defense contractor, they profit indirectly and diffusely when policy favors that company. But if a lawmaker holds a "yes" contract on "Will Congress pass Bill X?" or "Will the U.S. take military action against Country Y this month?", the payout is direct, binary, and tied to a specific outcome the lawmaker may personally help determine. The market doesn't just reward foreknowledge. It rewards influence over the result.

That inverts the entire relationship between a representative and the public. A senator deciding how to vote on a war authorization should be weighing the national interest and the lives at stake — full stop. The moment that senator could collect a five- or six-figure payout depending on which way the vote breaks, the public can no longer be sure which calculation is driving the decision. Even if the senator is scrupulously honest, the appearance alone is corrosive. And in a system where trust in government already sits near record lows — congressional approval has been measured around 17% — appearances are not a small thing.

There is also a structural problem the platforms cannot fix on their own. Polymarket operates largely offshore and outside the full reach of U.S. regulation. Its markets are pseudonymous. By design, the system is hard to police and easy to exploit by anyone holding information the rest of us don't have. Politicians and senior officials are, almost by definition, the people most likely to hold exactly that information.

"We already have insider-trading laws" is not an answer

Defenders of the status quo argue that misusing confidential information is already a crime, so no new ban is needed. This misunderstands the gap.

Existing insider-trading law generally hinges on breaching a duty of confidentiality. But a member of Congress betting on whether a bill will pass often has no clear duty of confidentiality they are violating — the information is theirs to act on. Legal experts looking at candidates betting on their own elections have repeatedly run into the same wall: who, exactly, does a candidate owe a duty to? The conduct can be obviously improper and still fall outside what current statutes cleanly prohibit. Existing federal conflict-of-interest statutes that bar officials from acting on personal financial stakes also carve out exceptions — notably for the President and Vice President — creating an uneven standard at the very top.

In other words, the law was written for a world that didn't have liquid, anonymous, real-money markets on government action. Relying on it here is relying on a lock built for a different door.

The momentum is already there — it just needs to become permanent

The encouraging news is that this is not a fringe position. It is one of the rare issues with genuine bipartisan and bicameral support.

The U.S. Senate has already moved, passing a rule barring senators and their staff from trading on prediction markets, effective immediately. In the House, a resolution has been introduced to amend the rules and prohibit members and staff from placing bets on prediction-market platforms such as Polymarket and Kalshi. Lawmakers from both parties have introduced proposals to bar individuals from trading in markets where they hold a conflict of interest or material nonpublic information. Government-ethics organizations have urged Congress to prohibit covered officials, their spouses, and dependents from trading event contracts tied to policy, elections, and political outcomes.

But chamber rules can be quietly rewritten by a future majority. A resolution can lapse. The Senate's own action, welcome as it is, is an internal rule — not a statute. If the goal is to actually restore public trust rather than to manage a news cycle, the prohibition has to be durable. That means legislation, signed into law, that survives changes in who holds power.

What a real ban should look like

A serious, loophole-resistant prohibition would include several elements:

It should cover all elected federal officials and candidates — members of Congress, and ideally the President and Vice President — along with their spouses and dependent children. The history of stock-trading reform shows that bans which stop at the lawmaker, while leaving spouses and family free to trade, simply relocate the conflict rather than ending it.

It should prohibit the trading itself, not merely require disclosure after the fact. Telling the public about a conflict a week later does not remove the conflict; it just documents it.

It should carry penalties with teeth — disgorgement of any profits to the Treasury and fines large enough that they cannot be treated as a cost of doing business.

And it should close the obvious workarounds: trading through trustees, through accounts nominally held by family members, or through proxies. A ban that an aide can sidestep on a lawmaker's behalf is not a ban.

The platforms themselves have begun adding "guardrails" against insider activity, and that is fine as far as it goes. But voluntary self-policing by offshore, pseudonymous betting platforms is no substitute for a clear legal line drawn by the people's representatives — around the people's representatives.

The simple principle at the heart of it

Strip away the mechanics and the argument is straightforward. We do not let referees bet on the games they officiate. We do not let judges hold a financial stake in the verdict. The reason is not that every referee or judge is corrupt. It is that the integrity of the outcome must be beyond suspicion, and you cannot have that when the decision-maker has money riding on the result.

An elected official is a referee of public life. They write the rules, fund the wars, confirm the appointments, and pass the laws. The instant they can also hold a bet on those very outcomes, they have a personal stake in a game they are supposed to be calling fairly for the rest of us.

Public service is not supposed to be a trading desk. If you want to serve, serve. If you want to bet on the news, choose a different job. It really is that simple — and it is time to write it into law.

This article is an opinion piece intended for general information and public-interest commentary. It is not legal advice. Policy details, pending legislation, and platform rules described here were accurate as of mid-2026 and may have since changed.