Massive $79.6M Donations Fuel California Governor’s Race Ahead Of June Primary

Record outside spending reshapes California’s volatile governor’s race ahead of June 2 primary

California’s 2026 gubernatorial election has become a battleground for independent spending, with $79.6 million poured into the race by outside groups ahead of the June 2 primary. The influx—shattering past records—reflects the high stakes of the contest, where billionaire Tom Steyer, former U.S. Attorney General Xavier Becerra, and other candidates face intense pressure from special interests, labor unions, and corporations with direct business ties to the state’s future policies.

The surge in outside spending underscores the influence of independent expenditure committees, which operate under relaxed campaign finance rules following the Supreme Court’s Citizens United decision. These groups can accept unlimited donations and deploy funds to shape messaging, launch negative ads, or bolster favored candidates without direct coordination with their campaigns. The $79.6 million figure, disclosed by the California Secretary of State’s office, includes contributions from corporations, tech titans, labor unions, and Native American tribes—all with vested interests in the state’s regulatory and economic direction.

Tom Steyer, the billionaire environmental activist and leading candidate, has been the primary target of outside spending, facing $32.3 million in attacks despite having contributed $212 million to his own campaign. His rivals, including Xavier Becerra—a former Biden Cabinet member and current U.S. Secretary of Health and Human Services—have seen growing support from independent committees aligned with progressive and labor-backed priorities. The spending spree also extends to lesser-known candidates, with groups deploying resources to sway voter perceptions in a race where policy divides—on housing, climate, and healthcare—remain sharply contested.

The flood of outside money reflects broader trends in U.S. Politics, where independent expenditure committees have become a dominant force in elections. Unlike traditional campaign donations, these funds are not subject to the same contribution limits, allowing wealthy donors, industries, and advocacy groups to amplify their influence. In California, where the governor holds significant authority over environmental regulations, labor policies, and economic incentives, the stakes are particularly high.

Key players in the spending war

• Tom Steyer: Facing the largest share of attack ads, Steyer’s campaign has leveraged his personal fortune to outspend rivals but now confronts a coordinated effort to undermine his candidacy.
• Xavier Becerra: Benefiting from labor and progressive alliances, Becerra’s campaign has seen a rise in outside support, positioning him as a potential alternative to Steyer.
• Steve Hilton (former Republican strategist) and other candidates: Smaller but strategic spending has targeted specific voter blocs, including Latino communities and suburban swing districts.

The race’s volatility stems from California’s top-two primary system, where the top vote-getters—regardless of party—advance to the general election. With no clear frontrunner, outside groups are betting heavily on shaping the narrative before the June 2 vote. Analysts warn that the record spending could distort voter perceptions, with attack ads dominating airwaves in the final weeks before polling day.

What comes next The June 2 primary will determine which candidates advance to the November general election. The influence of outside spending will likely persist, with independent committees continuing to shape the debate. Voters will face a choice between candidates backed by divergent coalitions—from climate-focused billionaires to establishment Democrats and labor-aligned progressives—each vying for control of a state with a $3.5 trillion economy and a pivotal role in national politics.

For now, the race remains a test of California’s electoral dynamics, where money, policy, and partisan divides collide in one of the most expensive governor’s races in U.S. History.

Source: California Secretary of State financial disclosures (May 26, 2026); Los Angeles Times reporting