Honestly, I'm not sure I get why these latest revelations matter all that much.
Yes, Trump seems to be admitting to sexual assault and that's a very bad thing. And he has no respect for women or the sanctity of marriage, and that's all pretty bad, too.
But all of the things that he's said and done that are more obviously relevant to his ability to hold public office, to negotiate with others, to have basic empathy, all of these things that we've known for months just didn't matter. Instead, this video is the source of his downfall.
If this were any other politician, then I could see how this video might lead to his downfall. But Trump has weathered storm after storm, scandal after scandal, and this one just doesn't seem to be any worse than what has come before.
No matter. If this is what sinks his campaign, then that's good.