Here's what to know about the feud between Donald Trump and Elon Musk over the president's "Big Beautiful Bill."

An intense public feud erupted on Thursday between President Donald Trump and his one-time ally, billionaire Elon Musk, with an argument about Trump’s massive tax and domestic policy bill raging across social media and in the Oval Office.

President Donald Trump and billionaire Elon Musk are showing no signs of reconciling on Friday, but Republicans are increasingly urging them to settle their dispute.