18 are “a component of the Executive Branch”); see also 17 U.S.C. § 701(e) (actions by the Register of Copyrights are subject to APA review). IPG did not pursue APA review in the district court, and this court may transfer a case to the lower court for initial review only “if it is in the interest of justice[.]” 28 U.S.C. § 1631.