Brin's Billion Dollar Block: How One Donor's Influence is Shaping California's Wealth Tax Debate Sergey Brin's latest $20 million donation to Building a Better California cements his position as the largest financial backer of the campaign opposing Proposition 40, a ballot measure that would impose a one time 5% tax on California billionaires' wealth.
Proponents argue the levy is necessary to address wealth inequality and fund public services, but Brin's generosity raises more questions than it answers.
The $20 million contribution brings Brin's total donations to over $102 million, dwarfing supporters who have raised just over $30 million.