In the cold open to 'The Late Show' and 'The Tonight Show' on Tuesday, Colbert videochatted with Fallon and discussed the insults at a South Carolina rally.

One day after President Donald Trump slammed three late-night hosts in one rally speech, Stephen Colbert, Jimmy Fallon and Conan O’Brien joined forces and imagined how to reply to the slight on Tuesday on CBS’ The Late Show and NBC’s The Tonight Show.

Trump’s comments followed a brief spat with Fallon on Sunday and Monday, in which the president attacked the NBC host for expressing regrets on a Hollywood Reporter podcast for a Tonight Show episode in which he’d tussled Trump’s hair. Trump continued his verbal assault on late-night at a South Carolina rally on Monday, where he took shots at…