While Sanders and Warren have similar programs, their voters are quite different: Bernie’s tend to be young, male, and poorly educated; while Warren’s are predominantly older, female, and better educated. Why?
Two words–socialism and identity. Bernie’s socialist past is a big liability with older voters. As to the rest, it makes perfect sense that women and the better-educated would support the brainy female Harvard professor, and that men and the poorly-educated would identify with the gruff community activist.
Can either of the two cross over? It won’t be easy, and that represents a problem for the left. As long as the fundis remain divided, the likelihood of a realo candidate, probably but not certainly Biden, prevailing is pretty high.
And for that, we all should be grateful.