I for one look forward to Democrats in the southern states saving us from nominating Sanders in 2020 much like they did in 2016.
Bernie Sanders doesn’t need to win any Southern Blacks to win the Democratic nomination, LOL. For example let’s say once the Democratic primary’s start the field has condensed to Bernie Sanders, Cory Booker, Kamala Harris, and Kirsten Gillibrand. In this scenario Bernie Sanders will win most White Millennials and Working Class Whites for 40% of the National Primary Vote and 31 state primaries and caucuses (all 12 Midwest States, all 6 New England States, plus OR, WA, AK, HI, ID, UT, CO, WY, MT, OK, KY, WV, and PA), Cory Booker will win most Blacks for 30% of the National Primary Vote and 14 state primaries and caucuses (LA, AR, TN, MS, AL, FL, GA, SC, NC, VA, MD, DE, NJ, and DC), Kamala Harris will win most Hispanics and Asians for 20% of the National Primary Vote and 5 state primaries and caucuses (CA, NV, AZ, NM, and TX), and Kirsten Gillibrand will win the niche clientele of Wealthy White Liberals and the #metoo crowd for 10% of the National Primary Vote and 1 state Primary (NY). The outcome of this result would be a contested Democratic National Convention in which the superdelegates would give Bernie Sanders the nomination due to him winning a clear plurality of pledged delegates.