10/28/2026
California's Proposition 40, a one-time 5% tax on residents worth over $1 billion, triggered an unprecedented defense campaign: ultra-wealthy opponents have poured more than $300 million into defeating it, with tech co-founder Sergey Brin alone spending $102 million. The math is stark and revealing. A $20 billion net worth would mean a roughly $1 billion tax liability under the measure. Spending $50 million to $100 million in campaign ads to kill it isn't charity—it's a calculated investment with a return measured in hundreds of millions of dollars saved. When billionaires can casually write nine-figure checks to protect their fortunes from taxation, they've already answered the question about whether they can afford to contribute to the state that made them rich. The campaign isn't really about California's budget, though Prop 40's revenue is earmarked for safety-net programs gutted over decades: Medi-Cal expansion, K-12 and higher education, food assistance. The fight is about precedent. If California proves that taxing accumulated wealth—not just annual income—actually works, the model spreads to other states and potentially Congress. For the ultra-wealthy, preventing that domino from falling is worth any price. What unfolds is a masterclass in how concentrated capital translates into political power, and how the wealthy protect their fortunes not despite having the money to pay taxes, but because they have so much money that the math of political spending to avoid taxation is irresistible..
