I provide this without further comment, because I can't add anything to it. Bernie knows the stakes. I hope we all do.
Bernie explains why he will not run as a third-party candidate, and will throw his support behind the eventual Democratic nominee, even if it's not him:
"What I did not want to do is run as a third party candidate, take votes away from the Democratic candidate and help elect some right-wing Republican. I did not want responsibility for that. So what I said at the beginning of the campaign is that I was not going to run as an independent. And I say it now, that if I do not win this process I will not run as an independent."