Billionaires Prepare $87 Million Ad Campaign to Block California Wealth Tax {} A coalition backed by the Google co-founder Sergey Brin and wealthy tech investors is trying to neutralize a proposed one-time tax on the state’s richest residents.

A coalition backed by the Google co-founder Sergey Brin and wealthy tech investors is trying to neutralize a proposed one-time tax on the state’s richest residents. A coalition backed by the Google co-founder Sergey Brin and wealthy tech investors is trying to neutralize a proposed one-time tax on the state’s richest residents.