Donald Trump has reignited his simmering feud with Elon Musk with a vengeance, warning that the billionaire might have to “head back home to South Africa” if government subsidies dry up.

"If this insane spending bill passes, the America Party will be formed the next day," Musk wrote in an X post on Monday.

Elon Musk, the world's richest person, reignited his criticism Monday of the Trump-backed One Big Beautiful Bill Act.