Newsom pitches AI 'public equity fund' and billionaire tax

The interesting bit of Gavin Newsom's Substack essay is not the billionaire tax, which is a familiar Democratic pitch. It is the proposal that the federal government take an equity stake in the AI boom itself and use the returns to underwrite workers the technology is expected to displace. Politico frames it as the California governor road-testing an economic-populism turn ahead of a likely 2028 presidential run.

The mechanics, as CBS News summarizes them, are a national public equity fund that would take a major stake in the AI economy, with revenues funding severance, portable benefits, and enhanced unemployment insurance for displaced workers. Alongside it Newsom wants a minimum tax on individuals with net worth above $100 million, an end to the 'tax-free lifestyle loan' of borrowing against stock instead of realizing income, and a return to pre-2017 corporate tax rates.

Why this matters if you are not a tax lawyer: it reframes the political ceiling for frontier AI labs. Regulation is one thing. A Democratic candidate arguing that Washington should be a shareholder in the industry, rather than only a rulemaker, is a different conversation. Newsom writes that 'every American owns a stake in the future being built by AI through a national public equity fund,' and describes the money as underwriting 'a real transition for the laid-off factory worker in Ohio or the 25-year-old coder in San Francisco.' That is a message aimed squarely at people who fear AI will take their job, not at people building it.

The honest caveat is that this is an essay, not a bill. The reporting does not spell out how the fund would actually acquire stakes in AI companies, which firms would be in scope, or how payouts to Americans would work in practice. Newsom is also simultaneously opposing California's own 5% billionaire wealth tax on this November's ballot, arguing the fight 'belongs at the federal level' — a stance that fits a presidential lane cleanly but leaves state-level implementation politically stranded.

The forward-looking question is whether 'public equity in AI' outlives Newsom's campaign framing. Even as a slogan it hands Democratic candidates a way to talk about the technology that is neither pure boosterism nor pure regulation. If a 2028 primary field ends up arguing over the terms of federal ownership rather than whether to have it, that is a genuine shift in how Washington relates to the frontier labs.