By Justin Sink - 12/03/12 08:36 PM EST
Kerry, perhaps sensitive to the perception he was openly lobbying for the job, returned to the podium — and returned fire at McCain.
"Thank you very much, Mr. President," Kerry quipped, in reference to McCain's failed presidential bids in 2000 and 2008.
"This is what happens when you get two losers up here, folks," Kerry, who lost the 2004 presidential election, continued on. "We're just having fun."