Yes they can.
The best way is to make Keith Ellison head of the DNC and drive the dems further left.
The only reason why some dems voted for Trump, was that he and Hillary were sooooo much alike, but they hated Hillary, so voted for Trump.
If the dems would have had a different candidate, more liberal than Hillary, they surely would have one.
You’re absolutely right, and I keep screaming it out loud. GO HARD LEFT!! It’s what the American people want!