A coalition of billionaires, featuring Sergey Brin, is endorsing San Jose Mayor Matt Mahan in his campaign for California governor. Bloomberg posted on X, highlighting the growing support from Silicon Valley for Mahan, who is known for his centrist approach and background as a tech entrepreneur. This backing comes as Mahan aims to challenge the state's liberal establishment, positioning himself as a moderate alternative. His campaign has attracted significant attention from influential figures in the tech industry, reflecting a shift in political dynamics within California.