Trump says he was serious about ending Elon Musk's government contracts —and would do so if he thought it was in the interest of the country.

Musk has launched a campaign against the sweeping Republican bill to advance Trump's agenda, and the president is considering how to respond, according to a White House official.

Why are Elon Musk and Donald Trump fighting? A timeline of their bitter feud and fallout - The pair’s relationship has spectacularly imploded in the past 10 days