House Democrat Moves to Bar Candidates From Betting on Their Own Races

A House Democrat has introduced legislation that would stop federal candidates from trading prediction market contracts connected to their own elections, adding a financial penalty for anyone who breaks the rule.

The bill comes after Kalshi, the regulated prediction market exchange, penalized a rival of the sponsoring lawmaker over trading activity tied to the race. The episode has put a spotlight on a gap that critics say has been left open as event contracts on elections have grown in popularity: nothing in federal law clearly prevents a person on the ballot from taking a position on the outcome.

Under the proposal, a candidate for federal office would be prohibited from buying or selling contracts that reference the result of their own campaign. Violations would trigger a fine. The measure targets candidates themselves rather than the platforms that list the contracts, though it would add pressure on exchanges to police who is trading on their markets.

The concern is straightforward. A candidate has far more influence over an election outcome than any ordinary trader, and also holds information the public does not, from internal polling to decisions about campaign strategy. Allowing that person to wager on the result raises the prospect of insider trading, and even of incentives that cut against the interests of voters and donors. Supporters of the bill argue that the integrity of both the political process and the markets depends on drawing a clear line.

Prediction markets have moved from a niche curiosity to a mainstream product in recent years. Platforms such as Kalshi let users trade contracts that pay out based on real-world events, and election markets have drawn some of the heaviest volume. That growth has brought more scrutiny from lawmakers and regulators, who are still working out how existing rules on insider trading, gambling and commodities apply to these products.

Kalshi has its own rules against trading by people with the ability to influence an outcome, and the penalty against the sponsor's opponent shows the exchange is willing to enforce them. But a platform rule only reaches users of that platform. A federal statute would apply across the board and carry consequences beyond a suspended account.

The bill still faces a long road. It would need to move through committee and win support from both parties, and it is unclear how much floor time the issue will get. Still, it signals that Congress is beginning to weigh in on how prediction markets should operate around elections, and that candidates who trade on their own races may soon face more than a rebuke from an exchange.