"This BFF situation has now turned into a soap opera that remains an overhang on Tesla's stock," bemoaned one Wall Street analyst.

Elon Musk’s feud with President Donald Trump has reignited, with the tech billionaire threatening to launch a new political party and Trump suggesting Musk could be punished for his opposition.

After Musk attacked his signature spending bill, the U.S. president threatened to turn Musk's own government agency, DOGE, into a "monster" that would "go back and eat" him.