I don’t think they have any choice.
The Berniebots are fiercely loyal to him and will not tolerate another 2016. If the DNC screws Bernie this time, they could tear the party apart.
I could also see the higher ups in the DNC allowing it to happen because they know that whoever they run will get annihilated in November. Better Bernie than one of their rising stars.
That would solve their Bernie problem for good.
The 2020 election for the presidency is a lost cause for the Dems. While some, like Carville, realize this salient truth, many Dems are so delusional they honestly believe Trump can, because he must, be dethroned.
In their delusion these same democrats see Sanders as the wave of their future. These mad and angry dems will support him with greater glee than they supported Hillary.
Trump will put on a full court press against socialism. I believe it will be epoch. Trump will not simply coast to victory. He will demolish leftist politics permanently.
Name one.