President Donald Trump said billionaire Elon Musk would face “serious consequences” if he threw his support behind Democrats running against Republican backers of the so-called Big Beautiful Bill. Trump issued the threat in a phone interview with NBC on Saturday,

As tensions escalate between President Donald Trump and Elon Musk, the Tesla CEO warned that Trump’s "big, beautiful bill" will trigger an economic recession. It comes as the Congressional Budget Office reports that Trump's tariffs plan would reduce the deficit but shrink the economy.

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