Trump live updates: President says Elon Musk ‘off the rails’ as tech boss hits back over Jeffrey Epstein

President Donald Trump has reignited his feud with Elon Musk, his former friend, ally and patron, over his threat to set up a third political party in the United States.

In a lengthy Truth Social tirade on Sunday, Trump said Musk has gone “off the rails” in recent weeks and become a “trainwreck”, again claiming that his opposition to the president’s “Big, Beautiful Bill” – signed into law on Friday – stemmed from its elimination of incentives beneficial to electric vehicle manufacturer’s like Musk’s company Tesla.

“When Elon gave me his total and unquestioned endorsement, I asked him whether or not he knew that I was going to terminate the EV Mandate – It was in every speech I made,” Trump wrote.

“He said he had no problems with that – I was very surprised!”

Earlier in the day, Trump had branded the world’s richest man “ridiculous” for threatening to found a new party to challenge Republicans and Democrats.

The billionaire has since retaliated by again taunting the president over his friendship with deceased pedophile Jeffrey Epstein.

“What the heck was the point of @DOGE if he’s just going to increase the debt by $5 trillion??” Musk asked in another post on X, reposting a sympathetic response from a fellow user who suggested Trump had behaved ungratefully to the tech boss after accepting $288m from him in campaign donations last year.

Here’s the latest from Andrew Georgeson.