I don't know how I'm supposed to feel about the completely cynical tag teaming that's going on among democrats. Warren is just in the race to syphon Bernie voters, claiming she hopes to steal the election by SD's... she's not dumb enough to believe that will happen herself, so I have to believe she's just taking special interest money to help give Biden the ticket.
Klobuchar is staying in to make sure Bernie doesn't win Minnesota and she'll drop out and endorse Biden after that.
All this work just to make sure the pharma lobby is happy. I no longer can fault anyone for sitting out the next election if Bernie gets the most votes but doesn't get the ticket. I would however fault them for not setting the DNC on fire.