In general— As soon as is reasonably practicable during the transition period, all open investigations, studies, litigations, matters, or other proceedings being supervised by an FTC antitrust unit and relating to the antitrust laws or unfair methods of competition under section 5 of the Federal Trade Commission Act (
15 U.S.C. 45), as in effect on the day before the effective date, shall be transferred to and assumed by the Attorney General.