Donald Trump Jr. offered some unsolicited ethics advice to Joe Biden, and it didn't go over well.

The president's eldest son turned the facts of Biden's diplomatic efforts in Ukraine on their head, accusing the former vice president of pressuring the foreign government to oust a corrupt prosecutor to protect his son -- when, in fact, that law enforcement official had not wanted to investigate an energy company associated with Hunter Biden.

"Why didn't @JoeBiden recuse himself from dealing with Ukraine?" Trump Jr. asked. "His son was on the board of a Ukrainian energy company that had been investigated by the prosecutor who Joe pushed to be fired."

"At the VERY LEAST, there’s the appearance of impropriety," he added. "A clear conflict of interest."

Other Twitter users were gobsmacked by Trump Jr.'s apparent lack of self-awareness.