Sergey Brin confronted Gavin Newsom at a treehouse party — then launched a political war

Main Idea: Sergey Brin turned against a proposed California billionaire tax after confronting Gavin Newsom at a holiday party, then poured millions into a political campaign to stop it.

Key Points:

• Brin and Newsom clashed at a Christmas party in a treehouse, where the governor was told Brin was planning to leave California over the tax plan.
• Brin later moved to Nevada and became the biggest donor to a new group fighting the wealth tax and backing pro-business politics in California.
• The article says Brin has spent more than $58 million in four months, while other wealthy donors have also poured money into California races.
• Newsom says the tax would hurt schools and public safety, while Brin and other tech leaders argue they are pushing for business-friendly reforms.