Obama's well-prepared speech had a message of unity, but Glenn believes an ad-libbed joke showed some real anger. "I have no more campaigns to run" he said, before sharply joking "I know, because I won both of them."
"That part where he just snapped and got all dark and ugly. My gosh. Because our fact checkers were following the script. And obviously that was not in the script. Right in the middle of him saying, and you know what, I just love everybody and we all have to work together, he takes a shiv," Glenn said.
During last night's coverage, Glenn called attention to the president's body language and how quickly his head snapped across the room after he told the joke.
"He was pissed," Glenn said.
Watch the moment below (via Mediaite):
Get Glenn's full analysis below: