Home / PoliticsPoliticsCNBCPoliticsCNBC·Jun 5, 2026·1 min readPrediction market firms face growing scrutiny as Congress weighs regulationRep. Bryan Steil, R-Wisc., is working on a bill to ban Congress members and their staff from certain bets on prediction markets such as Kalshi and Polymarket.View original source — CNBC ↗ShareCopy linkShare on XShare on FacebookRelated storiesPoliticsCNBCPoliticsJun 18, 2026 · 1 minGOP Rep. Steil pushes bill curbing members of Congress from prediction market bettingCNBCWorldBloombergWorldJun 9, 2026 · 1 minKorea Readies On-Site FX Inspections to Curb Won SpeculationBloombergWorldCBCWorldJun 18, 2026 · 1 minHot bet summer? Soon Canadians will be able to trade on prediction marketsCBCWorldBloombergWorldJun 18, 2026 · 1 minPolymarket Insider Trading Fears GrowBloomberg
PoliticsCNBCPoliticsJun 18, 2026 · 1 minGOP Rep. Steil pushes bill curbing members of Congress from prediction market bettingCNBC
WorldBloombergWorldJun 9, 2026 · 1 minKorea Readies On-Site FX Inspections to Curb Won SpeculationBloomberg
WorldCBCWorldJun 18, 2026 · 1 minHot bet summer? Soon Canadians will be able to trade on prediction marketsCBC