Silicon Valley billionaires fund $333M ad blitz against California Prop 40 wealth tax

A coalition of Silicon Valley billionaires has formed a $333 million political advertising machine to oppose California's Proposition 40, a wealth tax on the November ballot. The scale of spending marks an unprecedented direct intervention by tech elites in state fiscal policy, signaling high-stakes contest over progressive taxation. Outcome uncertain; polls will determine whether wealth tax gains traction.

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