I don’t know about the policies, but on electoral politics “Orange Man Bad” should be the primary message as long as Trump is the leader of the GOP and the rest of them are following him like a bunch of lemmings.
Policies are policies and Dems have to deliver on them and defend them. But nothing is as potent for Democratic base turnout as “Orange Man Bad” and for good reason. He and his henchmen are authoritarian monsters attempting to destroy democracy. That transcends all policy.