Jon Stewart explained to the former New York City mayor how, when you get called out for saying President Obama does not love this country, playing the 9/11 card only makes matters worse.

Giuliani said: “You know, President Obama didn’t live through September 11 — I did. President Obama didn’t almost have a building fall on him. Myself and my police commissioner and my fire commissioner did. ”

Stewart advises: “Shut up. You know you’re not the Mayor of 9/11, right? You don’t own 9/11. You don’t own anything but the unique willingness to crassly exploit it.”