Prediction Markets Put Election Odds Up for Sale, and States Are Pushing Back

The midterm elections are over, but the fight over prediction markets is not. Platforms such as Kalshi and Polymarket let people trade contracts on whether a party will win the Senate, who will become governor, or whether a candidate will drop out. Now lawsuits in multiple states call that activity illegal gambling, and the industry’s future is being argued in court rather than settled by one election night.

I understand the appeal. A market price can move as returns come in, and it can feel more immediate than a television graphic. Valerie Cross has said that “election markets provide a real-time read on results.” That is true in a narrow sense. But a fast number is not the same as a trustworthy one.

What is being challenged

State officials have sued prediction-market operators across the country, arguing that their event contracts amount to unlicensed gambling. Utah has filed criminal charges against Kalshi and its co-founders. Arkansas Attorney General Tim Griffin filed suit against Kalshi this week, alleging illegal gambling services and deceptive claims about legality. Other cases involve Polymarket and companies that help customers reach those platforms.

The companies say their products are financial contracts, not casino bets. They point to federal oversight by the Commodity Futures Trading Commission. That dispute is now the center of the argument: are these markets regulated financial instruments under federal law, or wagers that states may police under their gambling laws?

The answer is not obvious, and courts have not spoken with one voice. Federal appeals courts have split on sports-related contracts. Election contracts present their own question, and federal courts have not yet resolved it. That uncertainty matters because it leaves ordinary users guessing about what is lawful where they live.

Why elections are different

Sports markets draw much of the political attention. There is bipartisan interest in regulating them, including legislation focused on sports event contracts. But election markets deserve separate scrutiny.

An election is not a football game. It is a public process with rules, officials, ballots, and consequences that reach every household. When money is placed on the outcome, the question is not only whether the odds are accurate. It is whether the market can be manipulated, whether people with inside information can profit, and whether the public starts treating a civic result as another wager.

Those concerns are not hypothetical. Senators Elizabeth Warren and John Curtis, a Democrat and a Republican, have pressed Kalshi and Polymarket about safeguards against insider trading, market manipulation, and trades based on material nonpublic information. Kalshi has said it conducted 60 investigations into users’ election trading this year. The company also says it blocks candidates and staff from trading in election markets using Federal Election Commission payroll data.

That is a serious response. It is also a sign of the problem. If a platform needs dozens of investigations, an integrity committee, and special screening for political insiders, then the risks are real enough to require constant attention.

The useful part, and the limits

There is something useful in prediction markets. They can aggregate information quickly, and they can give the public a running estimate of an outcome. Cross also cited “fair concerns about thinly traded markets and insider risk.” Those concerns deserve weight.

A thinly traded market can swing because a few large traders move it, not because the public knows something new. Insider risk is worse. A person with early knowledge of a result, a legal decision, or an internal campaign development could profit before voters or journalists see the full picture.

Michelle Kendler-Kretsch, an anti-corruption researcher, has said that a strong election-night performance should not stop efforts to regulate these platforms. I agree with the caution. A correct forecast can coexist with weak safeguards. Accuracy on one night does not answer every question about fairness, access, or manipulation.

What ordinary people should watch

For most people, the practical issue is simple. These platforms are easy to use, and election contracts can make politics feel like a game with a payout. But the legal status varies by state, and the rules are unsettled. A user should not assume that a market available on an app is lawful, protected, or fully supervised in their state.

The larger issue is public trust. Elections already ask people to accept results they may dislike. Adding a financial market on top of that process can make suspicion easier and confidence harder. If a market price moves sharply before returns are official, some people will ask who knew what, and when.

That question deserves an answer before the next election, not after a dispute. Regulators, states, and the platforms should be clear about who can trade, what information is off limits, how manipulation is detected, and what happens when something goes wrong.

Prediction markets may have a role in how people understand elections. But they should earn that role through transparent rules and enforceable protections. A number that moves quickly is interesting. A public that trusts the process is more important.