"This isn't the USSR." It is in the dreams of the left. But they have a huge problem.
Which ever group on the left wins, that winner will use the lefts Antifa Anarchist wing to destroy their partners.
History shows the Communist, Islamist and Socialist can not co exist.
As for the few Liberals and Democrats left in the party, they will need to shut up and go with the flow or leave/get kicked out the party.