U.S. House Oversight Chair Launches Probe Into Kalshi and Polymarket Over Insider Trading

According to CNBC, House Oversight Committee Chair James Comer announced investigations into prediction platforms Kalshi and Polymarket over potential insider trading tied to elections and geopolitical events. Comer requested information on identity verification, geographic restrictions, and suspicious trade detection by June 5, citing concerns that government insiders could profit from non-public information through prediction markets.