IF the Dems were clever (and not only too clever for their own good), they should assemble a Shadow Cabinet now of people with experience, reputation and a track record of policies that helped Americans.
The Message should be that The President needs Good and Competent People to do his/her job, no matter who they are.
Run against all the lickspittle freaks like Miller, Patel, Lutnick, Hegseth, Bessent, Blanche, highlighting how utter unqualified, corrupt, self-serving and incompetent they are, not Trump (been done and failed again and again).
Highlight stars like Lina Khan and their work to make the lives of Americans objectively better.
Ask for Resumes from people now to staff the government depleted by DODGE and occupied by ghouls and vampires - most agencies will have to be utterly purged, and it will require A Lot of people quickly to replace them.
If you think that you or someone in your family might soon be working for the Government, you are more likely to vote for the Party that would make that happen.
Make the Presidency less of a Personality Cult.