Google Co-Founder Sergey Brin Spends $45m in Fight Against California Billionaire Tax

Sergey Brin gives $25m on top of $20m he's already given to a Super PAC trying to block the state's proposed 5% wealth tax. The Google founder has more than doubled his financial contribution to the fight against the tax measure. This massive expenditure highlights the intense battle between tech wealth and state-level progressive taxation policies.