Google co-founder Sergey Brin is spending $82 million to defeat California's Proposition 40, a one-time 5% wealth tax on billionaires. Senator Bernie Sanders slammed the move as a "moral obscenity," saying Brin would rather see low-income Americans suffer. But policy analyst Patrick Hedger defended him, crediting Brin's search engine with helping find a doctor who saved his vision after four others failed.
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