President Donald Trump is continuing to try to shore up support in the Senate for his massive tax and immigration package as he feuds with Elon Musk over the impact the legislation will have on the national debt.

A rift exploded Thursday between President Trump and Elon Musk, with the two trading insults, threats and accusations. Musk claimed Mr. Trump would have lost the election without him, while the president threatened to terminate billions in government subsidies and contracts that go to Musk's companies.