Behind Nevada’s $87 million, one very large name

One name dominates the Nevada records. The biggest recipient backed two campaigns that could block a billionaire tax.

CalAccess Insights · September 29, 2026 · 3 minute read
AI-assisted research, writing and graphics. January–June 2026 transactions, September 28 snapshot.

In our previous look at out-of-state campaign money, Nevada stood out: nearly $87 million in contributions to California committees in the first half of 2026—more than half the reported out-of-state total. This follow-up asks who was behind that number.

In the newer snapshot used here, $86 million appeared under Google co-founder Sergey Brin’s name with a Reno address. The largest recipient, Building a Better California, received $82 million. Separately, that committee sent $97.5 million to two ballot campaigns that could help block a proposed billionaire tax.

One Reno reported name/location group labeled Sergey Brin accounts for $86 million, or 98.95% of Nevada’s $86.91 million signed total. Two separate Crystal Bay Brin-labeled groups add $78,400; all other groups account for $830,484.84. — January–June 2026 monetary receipts; reported Nevada addresses; September 28 snapshot. Exact figures and scope below.

Six receipts, $82 million

Six contributions put $82 million into Building a Better California between January and May. One committee received almost all of the Reno total.

The committee had other donors. Its contributions to the six committees below total $117.6 million. Those are pooled funds, not a dollar-for-dollar tracing of Brin’s contributions.

Separate panels show Nevada records naming Brin contributing $82 million to Building a Better California, $3 million to JOBSPAC, $1 million to Deliver for California, and $39,200 each to Hilton and Bianco committees. The second panel shows $117.6 million in matched Building a Better California contributions to six committees. Individual donor dollars are not assigned to those contributions. — Committee contributions, not final campaign spending. Each panel has its own scale. The schools amount is net of a $2.4 million partial refund. January–June 2026; September 28 snapshot.

What the propositions would do—and who got the money

Building a Better California’s matched contributions went to committees supporting these measures:

Building a Better California contributions to proposition committees
Measure	What it would do	Contribution
Prop. 42	Prohibit new state taxes on ownership of financial assets and other personal property; limit retroactive taxes.	$49.25m
Prop. 41	Require audits around new or increased special taxes; restrict exemptions from the state spending limit.	$48.25m
Prop. 45	Speed environmental review and court challenges for specified projects, including housing, water and transportation.	$10m
Prop. 37	Create a loan program for eligible buyers of newly built homes.	$6m
Prop. 1	Authorize $11.25 billion in bonds for housing affordability programs.	$1m

Another $3.1 million net went to Californians to Protect Our Schools. Together, the six destinations account for $117.6 million.

The billionaire-tax connection

Committees backing Props. 41 and 42 received $97.5 million—about 83% of these six transfers, not all committee spending. Both could obstruct Proposition 40, the proposed one-time tax of 5% on the net worth of billionaires who were California residents on January 1, 2026. Most proceeds would fund health care; real estate, pensions and retirement accounts would generally be excluded.

The catch is in the vote count and the courts: if 41 or 42 passes with more yes votes than 40, a court finding that the measures conflict could stop the billionaire tax, even if voters approve it. These campaigns could shape the tax’s fate without “No on 40” in their names. Official analysis.

The candidate branches

Brin’s Reno records also show $3 million to JOBSPAC, which separately gave $15.25 million to California Is Not for Sale, No on Steyer for Governor, opposing Tom Steyer.

Even “Not for Sale” needs campaign financing.

JOBSPAC’s first transfer preceded Brin’s first contribution; we cannot trace his dollars through it. Another $1 million went to the Mahan-supporting Deliver committee.

An address is not a biography

Two more Brin-labeled receipts to Mahan’s own campaign list Mountain View, California. They fall outside Nevada.

An address field tells us what a filing reported—not legal residence or where the money ultimately originated. Here, it reveals a remarkable concentration of giving, with the largest recipient putting $97.5 million into two campaigns that could alter California’s tax rules.

Editorial note: This article examines public campaign-finance disclosures. It does not express PubSys’s views of the individuals or organizations mentioned, or endorse or criticize their political positions.

Sources and scope — exact figures, limitations and accessible chart data

This is a newer-snapshot follow-up to the original outside-money article. Nevada’s current signed total is $86,908,884.84, $904.98 above the frozen September 14 result. The cause remains unresolved. We have not exactly reconstructed the original article’s population or changed its figures.

The selection includes January 1–June 30, 2026 Schedule A monetary receipts in the selected-amendment CalAccess mart, with reported contributor state NV. It excludes loans, nonmonetary contributions and late-contribution schedules. This state filing population is not a complete census of local or federal giving. September 28 source files were refreshed September 29.

Nevada’s signed total combines $86,975,342.81 in positive entries with −$66,457.97 across six negative entries. Percentages use that signed total; negative entries are not automatically refunds. Nine Reno receipts under one reported name/location key total $86 million, or 98.95%; six of those receipts sent $82 million to Building a Better California. Name/location keys are reporting groups, not independently verified identities. Two separate Crystal Bay Brin-labeled groups and other candidate-related paths are retained in our reviewed research evidence, including filing identifiers and the full JOBSPAC chronology.

Nevada funding context
Funding context	Amount
Nevada signed monetary receipts	$86,908,884.84
Reno records naming Sergey Brin	$86,000,000.00
Of those Reno receipts, received by Building a Better California	$82,000,000.00

The following outgoing contributions match separately aggregated incoming recipient records. Current proposition names identify the campaigns. Their amounts are separate from the donor-receipt figures above.

Matched first-half Building a Better California contributions
Recipient	Amount
Yes on 42	$49,250,000
Yes on 41	$48,250,000
Yes on 45	$10,000,000
Yes on 37	$6,000,000
Californians to Protect Our Schools	$3,100,000 net
Yes on Prop 1	$1,000,000
Six traced destinations	$117,600,000

The last four rows sum to $20.1 million. The schools amount includes a −$2.4 million entry described as a partial refund. The $97.5 million share is 82.91% of the six matched paths. These aggregates do not allocate individual donor funds, establish donor control or motive, or measure electoral effect.

Source: California Secretary of State raw campaign-finance disclosures. Official proposition analyses and the FPPC election contributor list are linked in the article. The tables above provide the figures shown in the graphics; underlying selected-amendment queries are retained by the publisher.

Byline: PubSys CalAccess

Accountable editor: Todd Fulton

Publisher: Britto

PubSys CalAccess is operated by Britto, Inc. It is not affiliated with the California Secretary of State.

Prepared with AI assistance for analysis, writing, visualization and review. Todd Fulton is responsible for publication and corrections.

Corrections

To suggest a correction, include this article URL, the official source URL, and relevant record IDs. No response time is promised. info@britto.io.