The world's richest man is making his views on a variety of subjects well known in Washington as he returns his attention to his many businesses, including Tesla and SpaceX.

The Trump administration honored Elon Musk as the billionaire's tenure at the White House comes to an end. President Donald Trump awarded Musk a "key to the White House" in honor of his last day.

Ethics Watchdog Nomination: Trump nominated Paul Ingrassia, a former far-right podcast host, to a new important role: head of the Office of Special Counsel, an independent corruption-fighting agency that safeguards federal whistle-blowers and enforces some ethics laws.

Elon Musk is leaving Washington after a short but turbulent stint in government and getting back to his numerous businesses, each with their own set of issues for the billionaire to address.

Elon Musk is pushing lawmakers to help clear a path for driverless vehicles, according to people familiar with the matter, part of a broader effort behind the scenes to lobby for a key priority of Tesla Inc.

Live updates and the latest news as Trump and Elon Musk hold a White House press event and a federal appeals court pauses a lower court block on tariffs.

Musk said this week that he’s leaving his job as a senior adviser, an announcement that came after he revealed his plan to curtail political donations and he criticized the centerpiece of Trump’s legislative agenda.

Elon Musk confirmed that he's ending his time in politics and returning to his companies. Here's what led to this point.