Google co-founder Sergey Brin donates $500,000 to California group leading the campaign against …

After ‘cutting ties’ with the US Silicon Valley, Google co-founder Sergey Brin is now shifting his massive financial weight into San Francisco local politics. According to recent campaign filings, Brin has contributed $500,000 to a political committee fighting a controversial local tax measure dubbed the “Overpaid CEO Tax.” At the same time, the tech mogul is using his wealth to support a competing, more business-friendly tax proposal, as per a report by The New York Post.

The billionaire, whose net worth is estimated at $260 billion, recently moved out of Silicon Valley to a sprawling estate in Nevada.