2026-11-10 · contested story

California voters reject Prop 40 billionaire wealth tax, 52.8% to 47.2%

California voters rejected Proposition 40, a first-in-the-nation one-time 5% wealth tax on the state's roughly 200-250 billionaires, by a margin of about 52.8% to 47.2% (some outlets cited 53-55% opposition before the final count). The measure, sponsored by the healthcare union SEIU-United Healthcare Workers West, would have raised an estimated $100 billion—mostly for healthcare to offset federal Medicaid cuts under Trump's 'One Big Beautiful Bill.' The fight became the most expensive ballot-measure battle in California history, with opponents led by Google co-founder Sergey Brin (who contributed over $100 million) outspending supporters roughly 10-to-1 (and by 250-to-1 on advertising specifically). The measure also split Democrats, with Gov. Gavin Newsom and Gov.-elect Xavier Becerra opposing it while Sen. Bernie Sanders and Rep. Ro Khanna championed it. Two competing 'poison pill' measures (Props 41 and 42) were designed to nullify Prop 40 even if it passed; Prop 42, banning future wealth taxes, was poised to succeed.

How each side frames it

left
"Oligarchs in California spent $379 million against Prop 40, a 5% billionaire wealth tax, outraising supporters 250-1. They'd rather poor kids die than pay a little more in taxes. Obscene."
"If you spend enough on ads, you really can get people to vote against their own interests"
"The playbook for defeating the tax was simple: Stoke economic fears and confuse Californians."
"Millionaires threatened to leave New York if Zohran Mamdani was elected mayor. But historically this has always been an empty threat. The wealthy have the means to absorb tax increases."
"So whether it's Prop 40 or Prop 42, California's billionaire class may, after all, be crying wolf again."
center
"Those who backed the measure had argued it would help ensure that the ultra-wealthy were contributing their fair share... Newsom... had expressed concerns that the measure could cause the wealthy to leave the state and drive out their crucial income tax revenue."
"The loss of just six billionaires drastically reduced estimates of how much the wealth tax would've raised in revenue while also cutting forecasts for how much revenue California could generate from income taxes in the future."
"Zucman blames the corrosive influence of money for Prop 40's failure... 'Popular opinion on wealth taxes is clearly not as strong as proponents thought,' Rauh says."
"I don't mind paying taxes; the more you make, the more taxes you pay, so I'm okay with that"
"SEIU-UHW had projected that the tax would generate about $100 billion... But a recent study by economists at Stanford University's Hoover Institution, a conservative think tank, estimated that Prop. 40 would collect only about $30 billion, while costing California $39 billion"
right
"Californians may have spared themselves a costly experiment. The measure would have imposed a tax that numerous European countries have tried and abandoned after finding its economic costs too difficult to justify."
"After running 100,000 simulations using different assumptions, the two researchers report that '85 percent of plausible outcomes produce a negative' result in state revenue."
"It's part of a disturbing trend toward socialism in the U.S., wherein people misunderstand basic incentives and how taxes that target the wealthy end up harming everyone."
"A lot of messaging went around this: 'You're next.' And I think that messaging resonated with people. This is most likely not a one-time tax. It's not going to just stick to billionaires"
"an allegedly one-time 5 percent tax"

What each side left out

The right left out — covered by the CBS News & Common Dreams & Daily Kos & Gizmodo
The right left out — covered by the Vox & NPR
The left left out — covered by the CalMatters & NPR & New York Post & National Review
The left left out — covered by the Reason & NBC Los Angeles & CalMatters
The center left out — covered by the Common Dreams & Democracy Now!
The right left out — covered by the Common Dreams & Gizmodo & NBC News

What's actually true?

[verified] Proposition 40 was rejected by California voters, approximately 52.8% to 47.2%
[verified] Google co-founder Sergey Brin contributed more than $100 million (reported figures of $102M to $132M) to defeat the measure
[verified] Opponents outspent supporters roughly 10-to-1 overall, with over $300 million raised by the opposition versus about $33-35 million by proponents
[verified] On advertising specifically, opponents outspent proponents 250-to-1 ($148 million vs $572,000)
[verified] The California Legislative Analyst's Office estimated the tax would raise 'tens of billions of dollars' (not the $100 billion proponents projected) and could reduce ongoing state income tax revenue by up to $1 billion per year
[contested] A Stanford/Hoover Institution study by Jaros and Rauh estimated the tax would raise only ~$30 billion while costing California ~$39 billion net due to billionaire flight; seven billionaires had already left before Jan 1 removing ~$540 billion (nearly 30%) of the tax base
[verified] Gov. Gavin Newsom opposed Prop 40, favoring instead a national billionaire/wealth tax, arguing a state-level tax would drive the wealthy out
[verified] Nvidia CEO Jensen Huang supported paying the tax, calling it 'a privilege' and saying he could afford $8 billion over five years

The narrative clash

Whether billionaires actually flee in response to wealth/millionaire taxes
Left: That's right. But the important point I want to make is that none of these previous tax proposals have suggested that a small number of people would get tax bills up to $10, $12, or $13 billion... Our experience with taxing millionaires at the state level has been very successful... you get extra revenue and people aren't really moving away.
Right: Their analysis found that the publicly reported departures of just seven prominent billionaires before January 1, including Google cofounders Larry Page and Sergey Brin, had already removed $540 billion in wealth from the state. Those departures alone represented nearly 30 percent of the state's potential billionaire wealth-tax base
How much revenue the tax would actually raise
Left: The tax would raise an estimated $100 billion in revenue, funds that would help offset federal Medicaid cuts and fund California's education system.
Right: the new study estimates that the tax will generate about $30 billion, a far cry from the $100 billion that the tax's supporters expect... the state is likely to lose out... California could end up losing an estimated $39 billion because of the consequences of the wealth tax.
Whether billionaires can pay the tax without losing company control
Left: Two myths down: no, billionaires won't all flee, and yes, they can pay their fair share without losing their companies... Meta is preparing to pay the wealth tax... In January, it will issue a new class of stock... which Mr. Zuckerberg can sell to pay the potential wealth tax without cutting into his 60.6% voting power
Right: the way it would've taxed privately held assets raised fears founders might have to sell controlling stakes in their companies. That concern may have resonated especially across the startups and venture capital firms in Silicon Valley who are not quite billionaires yet
Whether money/advertising determined the outcome vs. genuine policy skepticism
Left: The money spent by the billionaires was critical. Anyone who lives in California has been carpet-bombed by a deluge of ads. One can easily see how this could be pivotal in such a closely contested ballot.
Right: the counties with the largest defections are actually the ones whose residents are most likely to know a billionaire, to work for one, or to have watched one move to Texas or Florida... proximity to the people being taxed... made voters more skeptical of the tax relative to their baseline politics.
Why it lost: bought election vs. genuine public opinion
Left: The tax was popular until $300M+ of billionaire money scared and confused voters into rejecting it.
Right: Support for wealth taxes was always shallower than organizers believed; voters weren't tricked, they were unconvinced.

107 sources analyzed

Common Dreams CNN BBC New York Post City Journal HuffPost Los Angeles Times 13WHAM-TV Reason City Journal Vox The Mercury News Yahoo Just The News City Journal Daily Kos Al Jazeera Fortune Fox Business Fox News Common Dreams NBC News ABC7 New York New York Post Fox News Common Dreams NPR NBC Los Angeles Reason Fox News Common Dreams The Guardian The San Francisco Standard New York Post The New York Sun Vox Los Angeles Times CBS News Just The News freebeacon.com The American Prospect Sacramento Bee 10News.com New York Post The Daily Signal Salon NPR University of California, Berkeley Reason Newsmax The Boston Globe The Washington Post Democracy Now! Reason The Daily Signal The Boston Globe Los Angeles Times Briefs Finance The Center Square National Review Vox Politico The Times of India Manhattan Institute The Federalist Mother Jones Capital & Main Euronews.com Just The News National Review The Daily Beast Business Insider CalMatters Just The News Washington Examiner The New Republic Gizmodo Forbes Cato Institute Newsmax The New Republic CBC Yahoo Finance Reason Magazine The Daily Signal Common Dreams Los Angeles Times ABC News - Breaking News, Latest News and Videos Orange County Register Newsmax The Boston Globe PBS Bloomberg Government News The Dispatch National Review Salon NPR TechCrunch Investor's Business Daily National Review The Daily Beast The Hollywood Reporter The Irish Times RealClearMarkets The Daily Signal Salon NBC 7 San Diego

Perspectivity reads the coverage — not just who published it.

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