The democrat party has heap big problems. They have moved steadily leftward, as their numbers declined.
But whatever they are, they need leaders. Schumer, Kerry, Hillary and others comprise the "establishment."
Warren, Ellison and various others comprise the "farther" left.
Expect them to be trying out their training wheels, of party leadership. Talk, stirring up the masses of "takers," from black-lives-matter-more, to Hispanics, tree huggers, etc.
It is all predictable. The problems arise when players like McCain and Graham take sides with them.