Though we’re several years out, we nonetheless already have a sense of the basic shape of the 2020 presidential contest. On the one hand, we’ll have a polarizing Republican incumbent who’s struggled with pushing through a domestic agenda. On the other will be his principal challenger, who will come from the Bernie Sanders wing of a Democratic Party that’s moved decidedly leftward, likely embracing positions like single payer that were until recently seen as non-starters in American politics. If all that happens, another path to the presidency will have suddenly opened up.
http://www.cbsnews.com/news/commentary-between-trump-and-dems-a-center-lane-opens/