Google cofounder Sergey Brin is biggest donor to group opposing California’s proposed wealth tax; has spent $102 million to fight it; here’s how much he may lose if the bill is passed

Google cofounder Sergey Brin has emerged as the biggest donor opposing California’s proposed billionaire wealth tax, contribution $102 million to a political group fighting the measure that could leave him facing tax bill of about $13 billion if approved by voters. The development was reported by Fortune, citing state financial campaign records. As per the campaign fillings, Brin has donated a teal of $102 million to building a Better California, a political action committee campaigning against California’s proposed wealth tax while supporting pro-business, housing and infrastructure policies. The contribution makes him the single largest founder of the anti-tax effort. Opposition groups have collectively raised more than $187 million, compared with roughly $32 million raised by supporters of the measure.