I hope they say, "Comply with the subpoena or we will jail you." Then do it; Clinton should get as much deference as tRump did when he was an ex-president.
Then, order the DOJ to comply with the court order to stop slow-walking the release of the Epstein files. Penalize them for non-compliance up to this juncture. If they continue to stonewall, then begin with Bondi, and start jailing them as well for defying the law. But I know you will have a problem with this second part, because... the law is only good when employed against your enemies.