ALBAWABA - Google co-founder Sergey Brin paid $102 million to a group trying to block proposition 40 in California which aims to tax the ultra-rich.Brin

California's Prop 40 would impose a one-time 5% tax on the net worth of the state's billionaires.

Google co-founder Sergey Brin has donated over $100 million to oppose California's proposed billionaire tax, which could cost him an estimated $13.3 billion in payments.