Elon Musk is under investigation by the U.S. Secret Service for a controversial tweet suggesting that no one has attempted to assassinate President Joe Biden or Vice President Kamala Harris, in light of a recent assassination attempt on former President Donald Trump. Musk made the remark in response to a Twitter user questioning the motivations behind threats against Trump, but later deleted the post, claiming it was intended as a joke. The Secret Service acknowledged awareness of Musk's post and stated that they investigate all threats related to their protectees, although they did not comment on specific cases. Freedom of Information Act requests for documents regarding the tweet were denied by the Secret Service, citing ongoing law enforcement purposes. Critics argue that the investigation may reflect poorly on the Secret Service's priorities, while supporters of Musk claim the tweet was merely an attempt at humor. Musk emphasized that jokes often lose context when presented in plain text on social media.