Tesla remains Musk’s best-known business, but its fortunes are less directly tied to the government than SpaceX, his rocket-building company.

And he accused the president of using the bill as a vehicle to defund the ability of courts to enforce contempt orders, making it all but impossible to hold him and his allies accountable for violating the law.

The billionaire SpaceX, Tesla and X owner who catapulted his zealous embrace of President Donald Trump into a powerful position slashing government spending now risks sweeping cuts to his own bottom line after resuming the feud that led to their very public bitter split last month.