What happened to Elon, appears he has a black eye on his right,” one account speculated of the tech billionaire’s appearance.

Elon Musk appeared in the Oval Office during his last day as a White House employee sporting a noticeable black eye, which he said was caused by his 5-year-old son X Æ A-12.

The world’s richest man is leaving his job having accomplished far less than he set out to do, although his tumultuous tenure ...