https://www.politico.com/news/2019/12/26/can-bernie-sanders-win-2020-election-president-089636

A few things:
1. I'll never understand why he is running under the same party that screwed him last time.
2. Bernie is the type to run more squarely on ideals than party (this is part of why he claims Independent as Senator) yet changes affiliation JUST TO RUN.
3. If Bernie gets the nomination or election, it's a dangerous pendulum swing in the complete opposite direction. Feels more like retribution than correction. Groom AOC for organic change over time.