Well, we saw a *big* move to partisanship in judges with the Clintons. Clinton-appointed judges began having regular Clinton-appointee-only meetings to discuss cases and to assign ‘sensitive’ cases amongst themselves, leaving out even other Democrat-appointed judges.
That goes even beyond the expected leanings that would result in a judicial candidate being appointed by a President with activist views.
Too bad the non-Clinton judges did not threaten and if necessary file judicial misconduct complaints. I know of an instance some years ago in which a state supreme court justice made such a threat when such a faction developed on his court. Within days, the faction stopped their intrigues and manipulations. Of course, the threat worked because the justice who made the threat had the stones to carry it out if he had to.