Former China ambassador Jon Huntsman was full of one-liners in Tuesday night’s Washington Post/Bloomberg News debate. In one memorable exchange, he took a dig at Texas Gov. Rick Perry for his association with a controversial pastor.

Asked to pose a question to one of the other candidates, Huntsman chose former Massachusetts governor Mitt Romney.

“Since this discussion is all about economics, Governor Romney, I promise this won’t be about religion,” Huntsman said. He paused, then added, “Sorry about that, Rick.”

Perry has taken heat for refusing to disavow the comments of evangelical pastor Robert Jeffress, who introduced the governor at last weekend’s Values Voter summit and later called Mormonism a “cult.”

Both Huntsman and Romney are Mormons.

Romney called on Perry to “repudiate” the remarks earlier today.