Jon Stewart offers speech advice to 'charisma boy' Rubio

Rubio told Stewart he thought Romney would “give a great speech.”

Stewart asked if RNC officials told Rubio, “Hey, charisma boy, take it down a notch,” so that Rubio wouldn’t upstage Romney. Rubio responded that they just asked him to introduce the former governor and gave him 15 minutes to say whatever he wanted.

For more on Rubio's interview, click here.