OCTOBER TERM, 1961. Opinion of the Court. 369 U. S. jurisdiction existed, whilst the opinion of the court as to the want of merit in the cause of action might have furnished ground for dismissing for that reason, it afforded no sufficient ground for deciding that the action was not one arising under the Constitution and laws of the United States." Swafiord v. Templeton, 185 U. S. 487, 493. "For it is well settled that the failure to state a proper cause of action calls for a judgment on the merits and not for a dismissal for want of jurisdiction." Bell v. Hood, 327 U. S. 678, 682. See also Binderup v. Pathe Exchange, 263 U. S. 291, 305-308. Since the complaint plainly sets forth a case arising under the Constitution, the subject matter is within the .federal judicial power defined in Art. III, § 2, and so within the power of Congress to assign to the jurisdiction of the District Courts. Congress has exercised that power in 28 U. S. C. § 1343 (3): "The district courts shall have original jurisdiction of any civil action authorized by law 18 to be commenced by any person . . . [t]o redress the deprivation, under color of any State law, statute, ordinance, regulation, custom or usage, of any right, privilege or immunity secured by the Constitution of the United States .... ." 19 18 42 U. S. C. § 1983 provides: "Every person who, under color of any statute, ordinance, regulation, custom, or usage, of any State or Territory, subjects, or causes to be subjected, any citizen of the United States or other person within the jurisdiction thereof to the deprivation of any rights, privileges, or immunities secured by the Constitution and laws, shall be liable to the paTty injured in an action at law, suit in equity, or other proper proceeding for redress." ' 19 This Court has frequently sustained Distrit Court jurisdiction under 28 U. S. C. § 1343 (3) or its predecessors to entertain suits to redress deprivations of rights secured against state infringement by the Equal Protection and Due Process Clauses of the Fourteenth

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