Elon Musk and Boris Epshteyn clashed at Mar-a-Lago over Trump’s cabinet picks, highlighting tensions within the transition team. Musk’s growing influence is causing friction among Trump’s long-time ...

Attorneys for Amazon and Elon Musk’s SpaceX argued in court that the National Labor Relations Board’s structure is unconstitutional.

A ruling in favor of the companies could immensely diminish – or paralyze – the nearly century-old agency, which is tasked ...