d 10/23/23 Page 4 of 5 action was pursuing "public interests separate and distinct from those of the private litigants"); Kerr-McGee Chem. Corp. v. Hartigan, 816 F.2d 1177, 1181 n.4 (7th Cir. 1989) (state attorney general was not bound by private litigation, "to assume that private individuals can be pro