Like in the story of the naked emperor, everyone knew but nobody dared say it.
If even Mitt Romney can look eminently acceptable in the face of Barack Obama, then Barack has had it.
In our modern world, the media feed the images and narratives to the public's eyes and ears. Until tonight, many of them had no earthly clue how decrepit and empty Obama is. After tonight, they do.
I'm sure that some network producer is crying his eyes out that he was responsible for removing the (carefully constructed) blinders off the people's eyes.