CNN's Piers Morgan mentioned Sen. Ted Cruz, R-Texas, during an interview Wednesday with Bill Clinton and preceded to crack up the former president.

"Ted Cruz, for all I know, is still banging on now trying to, you know, get Obamacare defunded and so on, even when most of his party thinks he's crackers."

Clinton interrupted the question by laughing at Morgan's description.

"Once in a while I'm extremely grateful for your British roots," he chuckled. "I couldn't have said that with a straight face and pulled it off, that was great."