It was what's left of Trump's campaign crashing and burning. I was unable to stay up for the whole thing, so I missed the statement of the night, where Trump refused to say if he'd accept the results of the election should he lose. That is rightly the headline in all the papers today, and it has in my opinion destroyed any chance, slim as it was to turn things around. I read an interesting piece today, which I cannot find now, that Trump is running his campaign as if he's still running in the primaries, and is doing nothing to try and appeal to any voter who isn't already part of his base.
While it is always foolish to take anything for granted, I expect the questions now are how wide of a margin will Clinton's win be, and how long are her coattails?