Elon Musk is like a dog with a bone.What’s made him so successful, an unwavering belief that he is right, can also be his undoing—especially when the world’s richest man becomes emotional about the matter.

White House Deputy Chief of Staff for Policy Stephen Miller blew up on Elon Musk on Tuesday night as the tech billionaire continued to tear into President Donald Trump’s “big, beautiful bill” on social media.

This week, Trump has said Musk would have to "close up shop and head back home to South Africa" if he halted government subsidies to his companies, and then later added that his administration would "have to take a look" at deporting Musk.