; and (C) any attorney general of a State shall enforce this Act in the same manner, by the same means, and with the same jurisdiction, powers, and duties as though all applicable terms of the Sherman Act ( 15 U.S.C. 1 et seq. ) and the Clayton Act ( 15 U.S.C. 12 et seq. ) were incorporated into and made a part of this Act. (2) Commission independent litigation authority If the Commission has reason to believe that a person violated this Act, the Commission may commence a civil action, in its own name by any of its attorneys designated by it for such purpose, to recover a civil penalty and seek other appropriate relief in a district court of the United States. (3) Parens patriae Any attorney general of a State may bring a civil action in the name of such State for a violation of this Act as parens patriae on behalf of natural persons residing in such State, in any district court of the United States having jurisdiction of the defendant for any form of relief provided for in this section. (4) Enforcement in federal district court The Commission, Department of Justice, or any attorney general of a State shall only be able to enforce this Act through a civil action brought before a district court of the United States. (5) Preponderance of the evidence The Department of Justice, the Commission, or the attorney general of a State shall establish a violation of this section by a preponderance of the evidence. (6) Remedies (A) In general The remedies provided in this paragraph are in addition to, and not in lieu of, any other remedy available under Federal or State law. (B) Civil penalty Any person who violates this Act shall forfeit and pay to the United States a civil penalty in an amount that is sufficient to deter violations of this Act, but not greater than 10 percent of the total United States revenue of the person for the period of time the violation occurred. (C) Injunctions (i) In general The Department of Justice, the Commission, or the attorney general of any State may seek, and the court may order, relief in