My big question is, why hasn't Al Gore stepped into the ring?
I don't think he emotionally could take another loss:
He's waiting for Academy Awards night to announce from the podium while accepting his Oscar for best documentary.
I'm only being partly sarcastic, because I think he will win the Oscar.
Regarding Hillary, I think she will be a formidable candidate and as of right now, has to be considered the favorite to win. But it is not preordained, and a lot can and will happen in the next 20 months. Lincoln said, "only events can make a President."