Someone like Sherrod Brown or Tammy Baldwin. Midwestern progressives with establishment connections. Cory Booker has no chance with the activist base (Despite the borderline Republican beliefs of Blue Dog Moderate, who seems fine with Democrats being right-wingers). Same goes for people like Manchin (who's nomination WILL trigger a left-wing third party challenge).
But even then, it'd be an uphill battle for them. There are always going to be unsatisfied people.
This sounds about right to me.
I think a Brown or Baldwin type would be the perfect nominee in 2020 for the Democrats, and I've been saying that for a while. Harris also mostly fits the bill (although she's not from the Midwest, so she could still get the brunt of "coastal elite" criticism) of "progressive with establishment connections".
