Biden said that he "was just thankful my mother couldn't hear it or see it," though he admitted that the incident "was a little embarrassing."
He also described how, after the press conference, he and the President were in a limo going to another event, and Obama "was laughing like the devil. I said, 'What's so funny? I don't see anything funny about this.'"
Obama replied: "When you said that to me, everybody could hear it."
Barbara Walters joked that it's not the first time Biden has made a similar gaffe, and Biden agreed: "That's true. It's not the first time."