A Massachusetts congressman has imposed a blanket ban on his staff using prediction markets, marking what appears to be the first policy of its kind on Capitol Hill. Seth Moulton announced this week that employees across his office are prohibited from accessing platforms like Kalshi and Polymarket for trades on political outcomes, policy decisions, or global events.

The move comes as prediction markets expand rapidly beyond traditional political forecasting into territory that raises some serious ethical questions. When congressional aides can potentially profit from information they encounter in their day jobs, the line between market participation and insider trading gets uncomfortably blurred.

Concerns Over Insider Access

Moulton framed the decision as basic ethics, really. Congressional offices exist to serve constituents, not to wager on events they may directly influence. His concern is shared by growing numbers of observers who’ve watched suspicious trading patterns emerge around geopolitical developments in Venezuela and Iran.

The timing of certain trades has fueled speculation that participants are acting on privileged information rather than public knowledge.

Leading platforms have introduced measures to limit insider activity, including restrictions on participants who might influence outcomes. Critics question whether self-regulation goes far enough when the stakes involve government policy and classified information.

Regulatory Response Takes Shape

Congress has responded with a wave of proposals aimed at tightening rules around prediction markets. Some bills would ban wagering on classified operations outright. Others would prevent elected officials and federal employees from participating in any political markets. The approach varies, but the momentum is building.

Rather than wait for legislation to catch up, Moulton implemented his own solution. The policy gives him immediate control over a potential conflict while broader regulatory frameworks take shape. It also helps him sidestep a legal grey area where prediction markets operate as regulated financial instruments but often resemble traditional betting.

Different Animal to Sports Betting

The comparison to sports betting is instructive but incomplete. A punter placing a bet on a football match has no influence over the outcome. A congressional aide trading on legislation their boss is drafting occupies entirely different territory.

That overlap creates conflicts that pure sports wagering never encounters.

Even the appearance of conflict can undermine public trust in institutions that depend on it. Moulton’s position is straightforward: his office will not engage in trades that run counter to principles of clean government. Whether other offices follow suit may depend on how quickly Congress can decide where prediction markets fit and how they should interact with government officials.

The prediction market industry has grown into something substantial, offering contracts on an expanding range of events beyond elections. That growth has brought innovation and liquidity, granted. But it’s also created situations where the wrong participants trading on the wrong information could cause real damage to market integrity and public confidence.

What the team thinks

Philippa Ashworth says:

This feels less like a regulatory precedent and more like reputation management theatre. The real story here is how quickly prediction markets have legitimised themselves enough to warrant formal workplace policies, which suggests institutional acceptance is outpacing the ethical frameworks needed to govern conflicts of interest. If anything, Moulton’s ban inadvertently validates these platforms as serious financial instruments rather than dismissing them as fringe betting products.