SAN FRANCISCO (Diya TV) — Google co-founder Sergey Brin has stepped into California politics with a force rarely seen from the tech billionaire class. Brin is donating $20 million to a new political effort, marking the largest and most visible political contribution of his career. The move comes just weeks after he took steps to leave California ahead of a proposed wealth tax targeting billionaires.
The donation positions Brin as a major player in the 2026 midterm election cycle and signals that California’s wealthiest residents are preparing to spend heavily to shape the state’s political future.
Brin’s $20 million donation is the cornerstone of a $35 million campaign by wealthy donors to fund ballot initiatives across California. The contribution, disclosed in recent campaign filings and obtained by The New York Times, far exceeds any political donation Brin has previously made.
At 52, Brin has largely avoided public political battles. Over 25 years in the spotlight, he has never backed a campaign or ballot effort with funding on this scale. His latest move, however, reflects growing concern among billionaires about proposals that could reshape California’s tax system.
The funding flows through a newly formed nonprofit group called Building a Better California. The organization was incorporated in January as a social welfare nonprofit and quickly launched an affiliated political action committee.
The group’s first spending does not directly oppose the proposed Billionaire Tax Act. Instead, it backs two ballot initiatives focused on California’s housing crisis. One proposal would create a down payment assistance program for middle-class buyers, funded by $25 billion in bonds. Another would speed up housing and infrastructure construction by easing parts of the California Environmental Quality Act.
California’s median home price now exceeds $850,000. Supporters say the measures could help make the state more affordable and boost housing supply.
“We support forward-looking policies aimed at making the state more livable and affordable,” said Abby Lunardini, a spokeswoman for Building a Better California. She added that protecting innovation and entrepreneurship remains a key goal.
The political backdrop centers on the 2026 Billionaire Tax Act. The proposal, backed by a health care workers’ union, would impose a one-time 5% tax on the assets of billionaires. Most of the revenue would fund health care services. Supporters argue the tax would help offset deep cuts to health care funding. Opponents warn it could drive wealthy residents and investment out of California.
Brin moved to the Nevada side of Lake Tahoe before a Jan. 1 deadline tied to the proposed tax. While Building a Better California says it has not taken a position on the wealth tax, the timing has raised eyebrows.
Several alternative ballot measures filed by a prominent law firm could weaken the tax if voters approve them. These proposals address issues like retroactive taxation and residency rules. While the group says it did not draft them, it may support them if they advance.
Brin is not acting alone. Other major donors to Building a Better California include investors John Doerr and Michael Moritz, Stripe CEO Patrick Collison, crypto entrepreneur Chris Larsen, and former Google CEO Eric Schmidt. All donations arrived within a 16-day window.
The influx of cash could shape which measures reach the ballot. Signature gathering in California has become a high-stakes business. Campaigns pay per signature, and prices have climbed sharply. Well-funded efforts often crowd out rivals by driving costs higher. Recent filings show the group already spent $11 million on housing-related initiatives. That spending could make it harder for the billionaire tax proposal to qualify for the ballot.
Brin has kept a low profile since stepping back from Alphabet’s daily operations in 2019. In the past, he supported climate and clean energy measures with far smaller donations. He also founded a nonprofit, Catalyst4, focused on climate and disease advocacy.
His return to political relevance has drawn attention, in part due to his personal life and recent appearances at White House events. Still, allies say his focus remains on California’s economic and housing challenges.
With an estimated net worth of $266 billion, Brin’s $20 million donation may only be the beginning. As the 2026 midterms approach, his move sends a clear message. California’s billionaire class is ready to fight for influence, and the battle over taxes, housing, and affordability is just getting started.
