A White House official called Elon Musk‘s proposal for a new America Party that would run a balanced federal budget a “libertarian delusion”.

Musk has reignited his feud with former ally President Donald Trump over the One, Big, Beautiful Bill. The billionaire CEO of Tesla and SpaceX thinks the bill is an unacceptable multi-trillion-dollar expansion of U.S. government debt.

He touted forming a new party and ousting Congressional Republicans who support cutting government spending, but also vote for the bill, in primaries. Senate and House Republicans are working to send the bill to Trump’s desk by a July 4 deadline.

“The libertarian delusion is that there is a large political constituency for their ideology,” Stephen Miller, White House deputy chief of staff for policy and homeland security advisor, posted to X, formerly Twitter, responding to Musk’s call for a new party.

“It does not exist. Libertarians have never performed nationally above a number rounding to zero. And when libertarians run for president within the GOP, they are the first ones out.”

This is a developing article. Updates to follow.