7 points
Also worth noting that the material conditions have declined significantly since Sanders ran. A lot more people are now seeing their own living standards declining, making it easier for them to realize the problems in the system.
4 points
The DNC will probably still hang on as a permanent minority party blocking the formation of a viable left party for like 20+ years before anything could replace it. As long as they have donors to pay for ads the party leaders get a cut of, all the existing financial incentives are there for the DNC to just lose a half dozen presidential cycles and not really care because Neera Tanden and Donna Brazil can sill cash a check.