President Donald Trump bid farewell to Elon Musk in the Oval Office. The billionaire entrepreneur is ending his work in the administration on Friday.

In an Oval Office send-off capping off his role with the Trump administration, Elon Musk did not respond when asked about a New York Times report alleging he's a near-daily user of ketamine.

Elon Musk 's time at the right hand of Donald Trump began with, uh, energetic on-stage appearances during which he performed a very Nazi-like salute and waved around a chain saw. But it ended in far more chastened fashion,