and immunities provided in the Federal Trade Commission Act. (iii) Authority persevered Nothing in this section shall be construed to limit the authority of the Commission under any other provision of law. (2) Enforcement by States (A) In general In any case in which the attorney general of a State has reason to believe that an interest of at least 1,000 residents of that State has been or is threatened or adversely affected by the engagement of any person in a practice that violates this section or a regulation promulgated under this section, the attorney general of the State, as parens patriae, may bring a civil action on behalf of the residents of the State in a district court of the United States of appropriate jurisdiction— (i) to enjoin that practice