Propositions 41 and 42 could prevent the wealth tax from taking effect if either passes and receives more yes votes.

Analysis: If Proposition 42 passes by one more vote than Proposition 40, the California billionaire wealth tax, it could ...

The AI boom lifted billionaires to a record 3,795 with $15.1 trillion in wealth, but Bloomberg says the peak has likely been ...

Prop. 42 is one of two propositions (alongside Prop. 41) that are heavily funded by Google co-founder Sergey Brin and a ...

You can usually tell a controversial idea like the “billionaire tax” is bad when proponents start trotting out teams of Nobel ...

The AI investment craze pushed the ranks and richest of the world's billionaire population to nearly 3,800 people and $15.1 trillion in combined wealth in 2025, per a recent report by Altrata. The AI ...

California’s 2026 Billionaire Tax Act (Initiative No. 25-0024) is a citizen-led ballot measure sponsored by SEIU-United Healthcare Workers West. It proposes a one-time 5% excise tax on the global net ...

The world's population of billionaires reached an all-time high in 2025, with the AI investment supercycle and broad equity market gains lifting both headcounts and fortunes to levels that would have ...

Doubling a billionaire’s tax bill sounds like a lot — unless that tax bill is already zero. Former U.S. Labor Secretary ...

AI investment is helping the rich get richer, according to a new report. The billionaire class saw its population grow by 8.2 percent in 2025, fueled in part by the AI investment boom, a new report ...

A new report offers a demographic portrait of the typical billionaire: male, 71 years old, and getting richer by the minute.

The world's richest have amassed an eye-watering stockpile of $15.1 trillion—and their heirs are set to take over a third of the global billionaire fortune in the coming decade. Women and Gen Xers are ...