Donald Trump referred to himself as a king on social media this week, and on Thursday night, Stephen Colbert was quick to put him in his place. According to the CBS host, there's only one true king in America — and it's one who's openly mocked Trump before.

President Trump referring to himself as a king “is the thing presidents are not supposed to do,” Colbert said on Thursday.

Whitehouse on Thursday claimed that Trump was much more of a “royal pain in the a--” than a royal ruler. This is following the president declaring he saved New Yorkers by ridding the city of a $9 “congestion pricing” toll meant to fund improvements to public transportation.