Tesla stock extended declines from earlier in the week as Trump and Musk traded words over the GOP budget bill, which Musk has described as an "abomination."

Musk has called to “kill” Trump’s policy bill, criticizing the legislation as “massive, outrageous” and “pork-filled.”

US President Donald Trump says he was "very surprised" and "disappointed" with his former ally Elon Musk's criticisms of his centrepiece budget bill. "Elon and I had a great relationship. I don't know if we will anymore," Trump told reporters in the White House on Thursday.