The push would block members of Congress from using crypto and event prediction markets as scrutiny grows over whether political insiders could trade on nonpublic information.
Congress is moving toward restricting lawmakers from participating in prediction markets such as Polymarket and Kalshi, with insider trading concerns at the center of the debate. The issue is that elected officials can have access to market-moving, nonpublic information through legislative work, briefings, or committee activity, creating a conflict if they trade contracts tied to political outcomes. Prediction markets let users buy and sell contracts based on the likelihood of an event, and in crypto-linked venues that structure can make questions about surveillance, disclosure, and enforcement more acute. The fact that platforms themselves are described as supportive suggests operators may see a ban as a credibility measure that could reduce regulatory and reputational risk while reinforcing the argument that these markets should be treated as legitimate information tools rather than vehicles for political profiteering.