And so @michaelredmond just said.

“CHANGE THE NARRATIVE. Get on top of the news cycle. Nail down a message and hammer it. All Trump needed was four words on a hat.“

And I agree.
Come we are smart people. What is the 4 or 5 word slogan, the Democrats could use ?

Change for the people.
Give honesty a chance.
Your health depends on it.
No one left out.
Stop the madness.
Take back the money.

(Please fire up you creative juices, and add to this list !)