OCTOBER TERM, 1961. Opinion of the Court. 369 U..S. political issues arising from a state's geographical distribution of electoral strength among its political subdivisions." 339 U. S., at 277. We hpld that the District Court has jurisdiction of the subject matter of the federal constitutional claim asserted in the complaint. III. STANDING. A federal court cannot "pronounce any statute, either of a State or of the United States, void, because irreconcilable with the Constitution, except as it is called upon to adjudge the legal rights of litigants in actual controversies." Liverpool Steamship Co. v. Commissioners of Emigration, 113 U. S. 33, 39. Have the appellants alleged such a personal stake in the outcome of the controversy as to assure that corncrete adverseness which sharpens the presentation of issues upon which the court so largely depends for illumination of difficult constitutional questions? This is the gist of the question of standing. It is, of course, a question of federal law. The complaint was filed by residents of Davidson, Hamilton, Knox, Montgomery, and Shelby Counties. Each is a person allegedly qualified to vote for members of the General Assembly representing his county.2" These appellants sued "on their own behalf and on behalf of all qualified voters of their respective counties, and further, on behalf of all voters of the State of Tennessee who 23 The Mayor of Nashville suing "on behalf of himself and all residents of the City of Nashville, Davidson County, . . ." and the Cities of Chattanooga (Haniilton County) and Knoxville (Knox Coqnty), each suing on behalf of its residents, were permitted to intervene as parties plaintiff. Since they press the same claims as do the initial plaintiffs, we find it unnecessary to decide whether the intervenors would have standing to maintain this action in their asserted representative capacities.

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