California's billionaire tax has become the defining issue of the midterms, pitting Democrats against Democrats and drawing hundreds of millions of dollars from Silicon Valley. The proposal, known as Proposition 40, would levy a one-time 5% tax on billionaires living in the state as of January 1, 2026, to fund healthcare and education programs.
The idea was born a year ago as a bold response to Donald Trump's healthcare cuts. When Trump signed the One Big Beautiful Bill Act, which slashed a trillion dollars from Medicaid and Affordable Care Act funding over the next decade, California faced the prospect of 3.4 million residents losing coverage, including millions of children.
Dave Regan, president of SEIU-United Healthcare Workers West and the divisive architect of the tax, said the union was willing to do something many called 'crazy.' 'To us, what's crazy is doing nothing and watching millions of people lose coverage,' Regan said. Now, with the midterms less than a week away, voters will decide whether to pass the measure.
What Is Proposition 40 and How Would It Work?
Proposition 40 would impose a one-time 5% tax on billionaires residing in California as of January 1, 2026. The revenue would be directed toward healthcare programs and some education initiatives, though the exact allocation is still being debated.
Supporters argue that the tax targets only the wealthiest residents and could raise billions for essential services. Opponents, including many in the tech industry, warn that it could drive billionaires out of the state and hurt the economy.

Why the Billionaire Tax Became a Midterm Flashpoint
The measure has drawn national attention and sparked a fierce battle among Democrats. Some see it as a necessary tool to address inequality and fund vital services, while others fear it could set a dangerous precedent and alienate wealthy donors.
Hundreds of millions of dollars have poured into campaigns for and against the proposition, with Silicon Valley heavyweights lining up on both sides. The fight has become a proxy war for the broader debate over how to fund healthcare in the face of federal cuts.
The Union Leader Behind the 'Crazy' Idea
Dave Regan, president of SEIU-UHW, has been the driving force behind the billionaire tax. He acknowledges that many considered the idea crazy, but he insists it was a desperate answer to Trump's healthcare cuts.
Regan's union represents healthcare workers who would be directly affected by the funding cuts. For him, the tax is a matter of survival for the state's healthcare system. 'We were willing to do something that lots of people said was crazy,' he said.

Key Takeaways from the Proposition 40 Debate
- One-time 5% tax on California billionaires as of January 1, 2026.
- Revenue would fund healthcare programs and education.
- Prompted by federal healthcare cuts that could leave 3.4 million Californians uninsured.
- Fierce Democratic infighting and hundreds of millions in campaign spending.
- Voters decide in midterms less than a week away.
How Proposition 40 Compares to Other Revenue Proposals
California has considered various tax measures in recent years, but Proposition 40 stands out for its narrow focus on billionaires. Here's how it compares to other proposals: The background to this story is set out in Fauci Journal Reveals Trump's 'Rambling, Crazy' Pandemic. A related thread runs through Senator Slams Trump's MMR Vaccine Claims as 'Crazy, Stupid'. Earlier coverage in Fauci Called Trump Rambling and Crazy in Secret Journals shows how the argument developed.
| Proposal | Tax Type | Target | Estimated Revenue |
|---|---|---|---|
| Proposition 40 | One-time 5% wealth tax | Billionaires | Not specified |
| Previous millionaire's tax | Income tax surcharge | High earners | Varies |
| Corporate tax increase | Corporate income tax | Businesses | Varies |
What's at Stake for California's Healthcare System
If Proposition 40 fails, California could face a significant funding gap for healthcare programs. The federal cuts are set to take effect in January, and without new revenue, millions could lose coverage. A closer look at the same subject appears in Fauci Described Trump as Rambling Crazy in Private Journal. Anyone following the wider picture can start with Business: latest articles. The same theme surfaces in Key State Ballot Initiatives in Midterms: Billionaire Tax and Trans, which takes a different angle.
Supporters argue that the billionaire tax is the only viable solution on the table. Opponents counter that it's a short-term fix that could have long-term economic consequences. Context on how this played out before sits in Trump DOJ Opens Criminal Probe Into California Noncitizen Voting.
FAQ
What is Proposition 40?
Proposition 40 is a California ballot measure that would impose a one-time 5% tax on billionaires living in the state as of January 1, 2026. The revenue would fund healthcare and education programs.

Who is behind the billionaire tax?
The tax was proposed by Dave Regan, president of SEIU-United Healthcare Workers West, as a response to federal healthcare cuts. The union represents healthcare workers who would be affected by the cuts.
Why is the billionaire tax controversial?
The tax is controversial because it targets a small group of wealthy individuals and could potentially drive them out of the state. It has also sparked infighting among Democrats and drawn massive campaign spending.
What happens if Proposition 40 passes?
If passed, the state would collect a one-time 5% tax from billionaires, generating revenue for healthcare and education. The exact amount is uncertain and depends on how many billionaires are affected.
The battle over Proposition 40 reflects a broader debate about economic inequality and the role of government in funding essential services. As voters head to the polls, the outcome could set a precedent for other states grappling with similar challenges.

For those following youth unemployment issues, the situation in New Zealand offers a parallel. The New Zealand youth unemployment crisis has also become a defining election issue, highlighting how economic pressures shape political landscapes.
Meanwhile, the healthcare funding debate in California is far from over. Regardless of the outcome, the conversation about how to sustainably fund healthcare in the face of federal cuts will continue.
As the midterms approach, all eyes are on California. The result of Proposition 40 could have ripple effects across the nation, influencing how other states approach taxation and healthcare funding.