Elon Musk has slept on Tesla's factory floor and instructed SpaceX employees to walk out of meetings where they aren't adding value.

Former Republican presidential candidate Vivek Ramaswamy will co-lead the newly created department that Trump indicated will operate outside the confines of government.

President-elect Donald Trump and Elon Musk have big ambitions for making the federal government leaner and more efficient by reviewing its budget and operations from top to bottom.