w:Supreme Court of the United States

Summary

w:Supreme Court of the United States Poe v. Ullman — Opinion of the Court

Eighty years of Connecticut history demonstrate a similar, albeit tacit agreement. The fact that Connecticut has not chosen to press the enforcement of this statute deprives these controversies of the immediacy which is an indispensable condition of constitutional adjudication. This Court cannot be umpire to debates concerning harmless, empty shadows. To find it necessary to pass on these statutes now, in order to protect appellants from the hazards of prosecution, would be to close our eyes to reality.
Source: Wikisource

w:Supreme Court of the United States Poe v. Ullman — Opinion of the Court

Whenever, in pursuance of an honest and actual antagonistic assertion of rights by one individual against another, there is presented a question involving the validity of any act of any legislature, State or Federal, and the decision necessarily rests on the competency of the legislature to so enact, the court must, in the exercise of its solemn duties, determine whether the act be constitutional or not
Source: Wikisource

w:Supreme Court of the United States Poe v. Ullman — Opinion of the Court

Insofar as appellants seek to justify the exercise of our declaratory power by the threat of prosecution, facts which they can no more negative by complaint and demurrer than they could by stipulation preclude our determining their appeals on the merits. Cf. Bartemeyer v. State of Iowa, 18 Wall. 129, 134-135, 21 L.Ed. 929. It is clear that the mere existence of a state penal statute would constitute insufficient grounds to support a federal court's adjudication of its constitutionality in proceedings brought against the State's prosecuting officials if real threat of enforcement is wanting.
Source: Wikisource

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