Gov. Gavin Newsom (D-CA) said the creation of a national billionaires tax is necessary during a press conference in Sacramento on June 26, 2026 [1].

The proposal highlights a tension between federal fiscal goals and state-level tax policy, as Newsom is simultaneously opposing a wealth-tax ballot measure within California.

Newsom said the federal government should implement a tax targeting the wealthiest citizens to ensure they pay a fair share of the nation's obligations. He said the U.S. government should take equity stakes in artificial intelligence companies. This approach would allow the federal government to profit from the growth of the AI sector while maintaining a regulatory role in its development.

"We need a national billionaire tax to make sure the richest pay their fair share and to give the country a stake in the AI economy," Newsom said [3].

The governor's position creates a distinct contrast in his approach to wealth taxation. While he advocates for a broad federal mandate to capture wealth from the top tier of earners, he has fought against the implementation of a similar wealth tax at the state level in California [3].

Newsom's push for federal AI equity suggests a shift toward a more interventionist economic model. By holding ownership in these firms, the government could potentially offset the costs of AI-driven economic disruptions, such as job loss, using the returns from those same companies [2].

The call for a national tax seeks to prevent a "race to the bottom" where states compete to attract wealthy residents by offering lower taxes. A federal standard would theoretically eliminate the incentive for billionaires to move between states to avoid wealth taxes [2].

"We need a national billionaire tax to make sure the richest pay their fair share and to give the country a stake in the AI economy."

Newsom's strategy reflects a calculated effort to shift the political and economic burden of wealth redistribution to the federal level. By advocating for a national standard and federal AI equity, he seeks to capture the economic upside of emerging technology for the public treasury without implementing a state-specific tax that could trigger a flight of capital and high-net-worth individuals from California.