Also while I get the fun of these what ifs. I beat my bottom dollar after Kerry lost in 04 people here probably said they needed some folksy blue dog to win again and look how that went for all we know Trump can do something that shifts the conversation from what it was this year like invade a country, or a recession, or whatever an someone like Cuomo, Booker, or Castro just catches fire with the right message
Well sure, if the economy does what it did in 2008, then even a Tom Steyer/Ivy League humanities professor ticket would beat Trump by 5-10. But the fact that change nothing and wait for the economy to crash worked within 4 years last time doesn't mean it will work this time. Failing to build a big tent also meant that Obama's power was especially fleeting once he got in.