In an interview with NBC News, the president also said he assumes his relationship with the tech billionaire is over following their recent falling out.

U.S. President Donald Trump, in an interview with NBC News on Saturday, said there would be "serious consequences" if billionaire Elon Musk funds Democratic Party candidates to run against Republicans who vote for Trump's sweeping tax-cut bill.

They’re the Washington couple at the center of power in the Trump administration. They’re also straddling opposing sides of an explosive breakup between President Donald Trump and billionaire Elon Musk.

Elon Musk and Donald Trump are embroiled in a public feud on X and Truth Social. Online creators large and small want a piece of the action.

Donald Trump's former allies say the political battlefield is littered with the scorched remains of those who have had a falling-out with him.

Trump’s team is asking federal employees to develop rationales for funding cuts to the state, including citing noncompliance with the president’s executive orders.

The Trump administration is preparing to cancel a large swath of federal funding to California, an effort which could begin as soon as Friday, according to multiple sources.

The threat to cut off California follows a 315-page report published by the Federal Railroad Administration that claims California has missed several deadlines related to the high-speed rail and has failed to identify how it will secure $7 billion in funding to build a segment of rail between Merced and Bakersfield,