Newsom endorsed Prop. 15 in September, though did not campaign for the measure. The governor also said recently that he would not support legislation calling for higher income taxes. Whatever the course, the road to more schools funding will likely require broad support among state leaders, education unions, advocacy groups as well as a unified message, said Carrie Hahnel, an independent education researcher and fellow with the Berkeley-based Opportunity Institute. Without federal or state intervention, Hahnel wrote in a recent Policy Analysis for California Education brief, schools are likely to face a downturn like the one they experienced nearly a decade ago. Because California’s public schools are heavily reliant on state income taxes, it makes them more susceptible to volatility amid the peaks and valleys of the state’s economy,