California voters reject Proposition 40 billionaire wealth tax after costly campaign
California voters rejected Proposition 40, a one-time 5% wealth tax on residents with net worth over $1 billion, according to an Associated Press race call. The measure, backed by SEIU-United Healthcare Workers West, would have funded Medi-Cal and other public programs. Opponents, including Gov. Gavin Newsom and tech leaders, outspent supporters by roughly 10 to 1. Proponents projected up to $100 billion over five years; critics warned of capital flight and lost income-tax revenue. Backers may reintroduce a similar measure in 2028.
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Cross-source coverage
Common ground
- The wealth tax proposal was poorly designed, with unrealistic revenue projections and a made-up avoidance assumption.
- The 10-to-1 spending gap in the campaign is indefensible on its face and is the clearest fixable problem.
- The press failed by treating the spending gap as a minor detail and running campaign press releases instead of investigating.
- Reforms like real-time spending disclosure and no spending caps for ballot measures are concrete and winnable.
- Nobody has run the one analysis—ad exposure by media market against the margin—that could settle why the measure lost.
Points of contention
- Whether the $379 million spending gap actually caused the 5-point loss or whether voters rejected the tax because it was incoherent.
- Whether the companion measures and the spending gap amount to corruption or just legal tactics that should be fixed by changing the law.
- Whether the absence of the key study is neutral or is itself the product of who funds research and ads.
- Whether 'the law is the corruption' is a valid description or an empty slogan.
Blind spots
- Both agents used unfalsifiable claims—'the absence of the study is the conspiracy' versus 'voters can smell an incoherent tax'—without evidence.
- Neither agent considered that ballot measures often lose due to down-ballot confusion, turnout, or unrelated mood, not just design or spending.
- The debate focused on why it lost rather than on the remedy, even though the remedy (disclosure reform) works regardless of the cause.
- No one actually pulled the ad-exposure-by-media-market data that both sides agreed would settle the causation question.
WorldAttention’s read
The roundtable agreed that the wealth tax was a flawed policy sold with inflated revenue claims, and that the 10-to-1 spending gap is indefensible and fixable through real-time disclosure and spending limits for ballot measures. They disagreed on whether the money actually decided the outcome or whether voters simply rejected a bad tax, and both sides admitted using unfalsifiable arguments. The clearest path forward is to pass disclosure reform first, then run the missing analysis to find out what voters really think.
Reporting timeline
California voters reject Proposition 40 billionaire tax after costly campaign
California voters rejected Proposition 40, a proposed one-time 5% wealth tax on residents with net worth over $1 billion, the AP reported Monday. The measure, which would have funded Medi-Cal and other public programs, was opposed by Gov. Gavin Newsom and tech leaders who outspent supporters roughly 10 to 1. Proponents, largely labor unions, projected it could raise up to $100 billion over five years from the state's roughly 200 billionaires. Opponents argued it would drive wealthy residents out of state and discourage entrepreneurship. TechCrunch interviews before the vote showed divided opinions: venture capitalist Nic Carter said the tax would benefit states like Florida and Texas, while economist Emmanuel Saez, a key architect, said fears about founder control were unfounded. Backers indicated they may reintroduce a similar measure in 2028.
Read sourceCalifornia Voters Reject 5% Billionaire Wealth Tax in Proposition 40
California voters rejected Proposition 40, a one-time 5 percent tax on billionaires, with 52.8 percent opposed and 47.2 percent in favor, according to The New York Times. The measure would have taxed individuals residing in the state on January 1, 2026, with net worth over $1 billion as of December 31, 2026. Opponents raised roughly $130 million versus over $33 million for supporters. Proponents estimated $100 billion over five years, mostly for Medicaid, while the Legislative Analyst's Office projected 'tens of billions' and warned of up to $1 billion in lost annual income-tax revenue. Stanford economists Benjamin Jaros and Joshua Rauh warned that departing billionaires could cause a net loss of $38.9 billion, with the tax costing more than it generates in 85 percent of simulations. Gov. Gavin Newsom opposed the measure, warning it would reduce investments in education and public safety. Competing Propositions 41 and 42 would restrict wealth taxes.
Read sourceCalifornia Voters Reject Proposition 40 Billionaire Wealth Tax
California voters rejected Proposition 40, a one-time 5% tax on billionaires' wealth, according to an Associated Press race call. Proponents, led by the healthcare workers' union SEIU-UHW, said the measure could raise $100 billion for healthcare, arguing that a Republican-controlled Congress cut health programs to fund tax breaks for the wealthy. Opponents said the tax would drive wealthy residents out of California, costing revenue and harming the economy. The measure divided Democrats: the state Democratic Party, Rep. Ro Khanna and Sen. Bernie Sanders supported it, while Gov. Gavin Newsom and gubernatorial candidate Xavier Becerra opposed it, with Newsom favoring a national wealth tax instead. A teachers union also opposed it, and Google co-founder Sergey Brin led wealthy Californians in campaign spending against the measure, with opponents outspending supporters by at least five to one. Brin also backed two companion ballot measures to block the tax had it passed.
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California Billionaire Tax Set to Fail, but Wealth-Tax Threat Still Costs State
California voters appear poised to reject Proposition 40, a ballot initiative backed by SEIU-United Healthcare Workers West that would have imposed a one-time 5 percent wealth tax on residents with more than $1 billion in net worth. As of Wednesday morning, the measure trailed by more than 10 percentage points with about 60 percent of votes counted. Despite its likely defeat, City Journal argues the mere threat of the tax has already damaged California's economy by prompting billionaires to leave. A Zucman-coauthored paper estimated the tax could raise roughly $100 billion, but Stanford economists Rauh and Jaros estimated only about $30 billion, finding that departures of seven prominent billionaires, including Google cofounders Larry Page and Sergey Brin, removed $540 billion in wealth. They concluded lost future income-tax revenue would more than offset wealth-tax gains, leaving the state nearly $39 billion worse off in present-value terms. The Legislative Analyst's Office also warned of ongoing revenue losses.
California Billionaire Tax Trails Badly, but Wealth-Tax Threat Still Costs State
California voters appeared poised to reject Proposition 40, a ballot measure that would have imposed a one-time 5 percent wealth tax on residents with net worth above $1 billion, with the measure trailing by more than 10 points as of Wednesday morning. Backed by SEIU-United Healthcare Workers West and opposed by Governor Gavin Newsom and Governor-elect Xavier Becerra, the proposal drew warnings from economists. A paper coauthored by UC-Berkeley economist Gabriel Zucman projected roughly $100 billion in revenue assuming about a 10 percent avoidance rate, but Stanford economists Joshua Rauh and Benjamin Jaros estimated only about $30 billion, noting that departures of seven prominent billionaires, including Larry Page and Sergey Brin, had already removed $540 billion in wealth. Rauh and Jaros argued lost future income-tax revenue would have more than offset wealth-tax gains, leaving California nearly $39 billion worse off in present-value terms. The article argues the mere threat of a wealth tax has already damaged the state's economy and tax base.