Mr. Trump had claimed the A.I. announcement as an early trophy, taking credit for the companies’ decision to spend up to $500 billion building data centers.

With Ramaswamy gone, Musk’s DOGE will be inside the White House. The size of its ambitions for remaking the federal ...

Hours later, Elon Musk publicly raised questions about whether the joint venture would ever get off the ground.Late Tuesday ...

The Musk-led panel looking for trillions in budget cuts and eliminating as many as a million federal jobs gets off to an evasive, rocky start.

Some have an immediate policy impact. Others are more symbolic. Some already are being challenged by federal lawsuits.