I married a 24 year overstay during Trumps first term. Once I dumped the Lawyer everything went smoothly(he filed expired versions of I485). Make sure your paperwork is in order, plenty of evidence and have all your ducks in a row. You are not what he is hunting down. Millions came over the boarder in the last few years and dont belong here, Those are his priority and by the time he gets that done your partner should be a citizen. Good luck and dont stress about that. Plenty of other obsticals coming your way.
Good Luck