Prediction markets aren't sure whether California Gov. Gavin Newsom can stop the state's proposed billionaire tax. Newsom previously vowed to fight California's so-called billionaire tax before it reached the ballot. His efforts are down to the wire, as there is a June 25 deadline to certify whether the proposal will be on the November ballot. As of Wednesday, June 17, Kalshi and Polymarket showed it was just under a coin flip on whether the tax would make the ballot. Both prediction markets