"John Dickerson is a fair-minded journalist, and one of the most competent people who will ever walk into your office, and you treat him like that," the late-night host said during his monologue.
Colbert then unleashed on the Trump:
"Mr. President, you're not the POTUS, you're the 'gloat-us.' You're the glutton with the button. You're a regular 'Gorge Washington.' You're the 'presi-dunce,' but you're turning into a real 'prick-tator," Colbert said.'
He continued:
"Sir, you attract more skinheads than free Rogaine. You have more people marching against you than cancer. You talk like a sign-language gorilla that got hit in the head. In fact, the only thing your mouth is good for is being Vladimir Putin's c--k holster."
Colbert wasn't finished. Watch the entire monologue below:
The takedown follows a weekend of media-bashing from Trump, as he addressed his supporters in Harrisburg, Pennsylvania - the same night that journalists and dignitaries mingled at the White House Correspondents' Association Dinner in Washington; an event Trump chose not to attend.
Tonight: Stephen tells the President everything journalists, restrained by their dignity, wish they could say. #LSSC pic.twitter.com/FHG4jvF8fv
- The Late Show (@colbertlateshow) May 1, 2017