I saw the video.

It doesn't look good.

I can imagine the phone conversations on all sides.

I can't say there's ever been a video like that of a presidential candidate or president. 

Haven't seen much discussion of it on Twitter.

I can imagine people don't know what to say.

Or they don't want to say what they think.

For once I feel the need to say something but I don't know what.

We don't know what happened.

Update: Yes GHW Bush had an episode. The video wasn't as good or as real-time and this was before widespread use of the Internet. And he didn't get re-elected. Not saying this was the cause but it certainly didn't help. On the other hand, his opponent was a young vigorous man, and HRC's opponent is not.