Prediction MarketsBusinessA Former Top Trump Official Is Going After Prediction MarketsBy Kate KnibbsBusinessOpenAI Fires an Employee for Prediction Market Insider TradingBy Kate KnibbsBusinessKalshi Suspended a California Politician and a YouTuber for Insider TradingBy Kate KnibbsRegulationThe War Over Prediction Markets Is Just Getting StartedBy Kate KnibbsRegulationSenators Urge Top Regulator to Stay Out of Prediction Market LawsuitsBy Kate KnibbsGearSports Betting Is Skyrocketing. Will It Take Over the Olympics?By Ben DowsettBusinessDonald Trump’s Truth Social Is Launching a Polymarket CompetitorBy Joel KhaliliBusinessMeet the Guys Betting Big on AI Gambling AgentsBy Kate KnibbsBusinessVolodymyr Zelensky’s Clothing Has Sparked a Polymarket RebellionBy Joel Khalili and Kate KnibbsPoliticsKalshi CEO Tarek Mansour On Prediction Markets’ Big Night: ‘We Even Overtook Pornhub’By Kate KnibbsPoliticsThe Polymarket Bubble: Everyone Is Betting on the US ElectionBy Makena Kelly