Vice President Biden laughs. (Getty Images)

The early word from the GOP side after Thursday night's debate was that Vice President Biden "embarrassed himself" in the face-off by interrupting his opponent and laughing openly.

"The vice president has found other forums in which to embarrass himself, and I think he found one more forum in which to embarrass himself," said Rep. Jeb Hensarling (R-Tex.), chairman of the House GOP conference.

"I'm talking about the fact that the vice president of the United States, who didn't know his facts, could not decide whether or not to giggle, shout, and he settled for interrupting all evening. ... Maybe he didn't realize there was a split screen and people were taking turns in order to have their views known," he added.

Rep. Aaron Schock (R-Ill.), another House colleague of Ryan's, noted that Biden was "smiling, laughing and grinning at times."

He argued that Americans will "long forget what they said over the hour and a half," but that they would remember both candidates' demeanor. And he defended Ryan's handling of the many questions related to foreign affairs, contending that he "held his own."

"He's not running to be the defense secretary," he said.