If the Democratic Party can't win with 1) the actual truth and 2) a billion dollars at their disposal (which I would spend on combatting the Trump misinformation) then the Democratic party apparatus needs to be remade from the ground up. That is, if we even have another election anytime in the near future
And if we somehow do manage to, the first thing they need to do is to stop hiring people who've lost their elections to head the DNC (e.g., Tom Perez, Jaime Harrison). Find a David Plouffe or David Axelrod type instead who can actually win.