; and (bb) any other metric identified by the Commission. (II) Discretion of the Commission For purposes of defining grossly excessive price , the Commission may reduce the percentage described in matter (aa) at its discretion. (g) Enforcement by state attorneys general (1) In general If the attorney general of a State has reason to believe that any person has violated or is violating this section, the attorney general, in addition to any authority it may have to bring an action in State court under the laws of such State, may bring a civil action in any appropriate United States district court or in any other court of competent jurisdiction, including a State court, to— (A) enjoin any further such violation by such person; (B) enforce compliance with this section; (C) obtain a permanent, temporary, or preliminary injunction; (D) obtain civil penalties; (E) obtain damages, restitution, or other compensation on behalf of residents of the State; or (F) obtain any other appropriate equitable relief. (2) Rights of the Commission (A) Notice to the Commission (i) In general Except as provided in clause (ii), before initiating a civil action under paragraph (1), the attorney general of the State involved shall provide to the Commission a written notice of such action and a copy of the complaint for such action. (ii) Exception If the attorney general determines that it is not feasible to provide the notice described in clause (i) before initiating a civil action under this subsection, the attorney general shall provide written notice of the action and a copy of the complaint to the Commission immediately upon initiating the civil action. (B) Intervention The Commission may— (i) intervene in any civil action brought by the attorney general, official, or agency of a State under this subsection; and (ii) upon intervening— (I) be heard on all matters arising in the civil action