'Unlikely Bedfellows': Left-Leaning Groups Join Newsom-Backed Effort to Sink California Billionaire Tax
“This is not going to be, ‘Billionaires killed this wealth tax’ if it appears on the November ballot,” said Newsom's chief of staff. “It’s going to be Planned Parenthood, doctors, teachers, and labor killed it.”
It comes as no shock that Silicon Valley oligarchs and other plutocrats are trying to keep a proposed billionaire tax backed by California governor and presumptive Democratic presidential aspirant Gavin Newsom off November's ballot. But the participation of progressive groups as "unlikely bedfellows" in the effort to kill the wealth tax has surprised many observers.
Introduced by the Service Employees International Union-United Healthcare Workers West (SEIU-UHW), the California Billionaire Tax would impose a one-time 5% levy on people worth $1 billion or more, to be paid in annual installments of 1% over five years. Proponents say the tax would raise roughly $100 billion in revenue.
The proposal requires the state to spend 90% of revenue from the tax on healthcare and the rest on food assistance and public education. Opponents counter it could drive wealthy residents and investment from California.
Supporters of the billionaire tax have submitted more than 1.5 million signatures, far more than the roughly 875,000 valid signatures required to qualify for November's ballot. The signatures are still being verified, and the office of California Secretary of State Shirley Weber has until June 25, 2026 to determine whether the initiative qualifies.
The measure is backed by numerous progressive groups including the Teamsters union, California Democratic Socialists of America (DSA), and Our Revolution, as well as individual progressives like Sen. Bernie Sanders (I-Vt.), Rep. Ro Khanna (D-Calif.), and Democratic congressional candidate Connie Chan, who is running to replace retiring longtime San Francisco congresswoman Nancy Pelosi.
However, opponents are trying to stop the proposal from qualifying for the ballot, while preparing for a fight in the likely event that it does.
Newsom, the California Democratic Party, and a growing list of groups—including the California Teachers Association (CTA), Planned Parenthood Affiliates of California (PPAC), and the State Building and Construction Trades Council of California—are publicly opposing the tax and are urging SEIU-UHW to pull the proposal before June 25.
Republicans, the California Chamber of Commerce, and other capitalist interests oppose the billionaire tax, as do both candidates for California governor, Democrat Xavier Becerra and Republican Steve Hilton, and Chan's opponent in the San Francisco congressional race, state Sen. Scott Wiener (D-11).
Newsom said that the proposed tax "makes no sense" and would be "really damaging to the state."
CTA argues that the tax is a one-time revenue source, while California schools and healthcare programs need permanent, recurring funding. To that end, the union is backing a separate ballot measure—the Children's Education and Health Care Protection Act—which would permanently extend Proposition 55, California's existing high-income-earner tax, set to expire in 2030.
Jodi Hicks, PPAC's president, recently said that the California Billionaire Tax's "uncertain impacts on the state budget and lack of specificity on healthcare allocations will do more harm than good in the long term."
PPAC and aligned groups including California Medical Association and California Primary Care Association also support extending Prop 55.
Meanwhile, tech billionaires and Silicon Valley executives—including Google co-founder Sergey Brin, former Google CEO Eric Schmidt, PayPal and Palantir co-founder Peter Thiel, and Ripple co-founder Chris Larsen—have raised tens of millions of dollars for Building a Better California, a political action committee dedicated to defeating the proposed tax at the ballot box.
Building a Better California is also backing separate initiatives designed to weaken or nullify the billionaire tax, including a ban on retroactive wealth taxation, restrictions on how any new tax revenue can be allocated, and the imposition of new auditing requirements.
Newsom and his allies have a useful weapon to deflect claims that he's helping billionaires who are trying to defeat the proposed tax.
“This is not going to be, ‘Billionaires killed this wealth tax’ if it appears on the November ballot,” Nathan Barankin, Newsom’s chief of staff, told The New York Times Wednesday. “It’s going to be Planned Parenthood, doctors, teachers, and labor killed it.”
SEIU-UHW accused opponents of the proposed tax of “carrying water for a few of the world’s most controversial billionaires."
“Their complicity with billionaires at the expense of patient interests is no surprise,” SEIU-UHW chief of staff Suzanne Jimenez told the Times.



