I think 2020 would be a whole new Obama from the dems... someone we're not discussing right now.
Bernie, warren, hilary... they'd all be too old.
By then, trump will have gained 20 pounds, Pence will be running the country, there will be no wall, the debt won't be half-erased lol... and "making america great" will be a punchline.
You thought 2016 seen the rise of the progressive left with the ability of Bernie supporters to disrupt the DNC?
Give 4 more years for the best and brightest minds in Silicone Valley to improve upon social media platforms such as Twitter, Facebook, Instagram etc etc.
Give the grievance and social justice warrior sectors more ability to strengthen and multiply in numbers.
These progs will simply become more and more organized and their ability to Unleash the Fury will have increased 5 fold.
You think these people are going to accept ANYTHING but a far leftist??
Democrat Party? LOL, my early money is on a Jill Stein Green Party type or potentially an outright communist to be on stage versus The Donald in 2020.