[Leaning Right]

I vote for debate possibility #2: She looks confused, flustered, angry.

But the moderators will prevent Trump from taking too much advantage of that.

However, give me good enough odds (maybe 5 to 1) and I’ll go with #1: She backs out. The excuse would either be the “pneumonia” thing, or Hillary will just say that she refuses to debate a hater and a racist.

[CatOwner]

I'm thinking Hillary goes all-in on debate #1, fully rested and fully drugged up. With the media's help, plant several gotchas on Trump, and then announce after the debate (of which she'll be proclaimed the winner by a large margin) that she is backing out of the remainder of the debates for health reasons.

Trump cannot screw up in debate #1. He has to clearly win, and I don't mean with conservatives.