McCain calls Charles Barkley 'clueless,' offers wager on Romney win

"Mitt Romney, listen man. We’re gonna beat you like a drum in November," Barkley said during the TNT broadcast of Sunday night's Celtics game. "Don’t take it personally. I like you, you seem like a nice guy. But you’re going down, bro."

The former Philadelphia 76ers and Phoenix Suns star previously hinted that he would like to run for governor of Alabama as a Democrat in 2014.

Romney, the former governor of Massachusetts, sat about 12 rows back from center court with his wife and former colleague Bob White, according to the Associated Press. The Celtics beat the Hawks handily, 101-79, to take a 3-1 advantage in the first round playoff series.

More in National Security

McCain slams Cruz's call for religious test for refugees

Read more »