California's Billionaire Tax Faces High-Stakes November Vote Amid Massive Ad War and Implementation Concerns
Proposition 40, a one-time 5% tax on California billionaires, is the central issue in the November 2026 election, with polls showing a narrow lead for supporters. Google co-founder Sergey Brin has spent over $100 million to defeat the measure, which aims to raise $100 billion to offset federal cuts to Medi-Cal. While opponents warn of tax flight and implementation challenges, experts note the tax is unique and difficult to predict. The measure has divided Democrats, with Governor Gavin Newsom opposing it in favor of a national wealth tax.
