Whether Mendoza-Martinez's declaratory-judgment action had to be heard by a three-judge District Court because it challenged the constitutionality of an Act of Congress.
Holding
No. A single District Judge properly heard the case because the action, as tried and decided, sought and produced declaratory rather than injunctive relief.
Reasoning
The three-judge-court statute applied when a court was asked to enjoin the enforcement of a federal statute on constitutional grounds. Although Mendoza-Martinez's amended complaint included language requesting an injunction, the parties' trial stipulation, the District Court's opinion, and its judgment all showed that the case was actually litigated as one seeking a declaration of citizenship and of the statute's invalidity.
Congress created the three-judge procedure to prevent one federal judge from immediately disabling an entire federal regulatory program through a broad injunction. A declaratory judgment in this case did not coercively bar the Government from enforcing the statute while appellate review proceeded. Because the dangers Congress meant to address were absent, convening a three-judge court was unnecessary.