What follows is an opinion from the Supreme Court of the United States. Your task is to determine the bases on which the Supreme Court rested its decision with regard to the legal provision that the Court considered in the case. Consider "judicial review (national level)" if the majority determined the constitutionality of some action taken by some unit or official of the federal government, including an interstate compact. Consider "judicial review (state level)" if the majority determined the constitutionality of some action taken by some unit or official of a state or local government. Consider "statutory construction" for cases where the majority interpret a federal statute, treaty, or court rule; if the Court interprets a federal statute governing the powers or jurisdiction of a federal court; if the Court construes a state law as incompatible with a federal law; or if an administrative official interprets a federal statute. Do not consider "statutory construction" where an administrative agency or official acts "pursuant to" a statute, unless the Court interprets the statute to determine if administrative action is proper. Consider "interpretation of administrative regulation or rule, or executive order" if the majority treats federal administrative action in arriving at its decision.Consider "diversity jurisdiction" if the majority said in approximately so many words that under its diversity jurisdiction it is interpreting state law. Consider "federal common law" if the majority indicate that it used a judge-made "doctrine" or "rule; if the Court without more merely specifies the disposition the Court has made of the case and cites one or more of its own previously decided cases unless the citation is qualified by the word "see."; if the case concerns admiralty or maritime law, or some other aspect of the law of nations other than a treaty; if the case concerns the retroactive application of a constitutional provision or a previous decision of the Court; if the case concerns an exclusionary rule, the harmless error rule (though not the statute), the abstention doctrine, comity, res judicata, or collateral estoppel; or if the case concerns a "rule" or "doctrine" that is not specified as related to or connected with a constitutional or statutory provision. Consider "Supreme Court supervision of lower federal or state courts or original jurisdiction" otherwise (i.e., the residual code); for issues pertaining to non-statutorily based Judicial Power topics; for cases arising under the Court's original jurisdiction; in cases in which the Court denied or dismissed the petition for review or where the decision of a lower court is affirmed by a tie vote; or in workers' compensation litigation involving statutory interpretation and, in addition, a discussion of jury determination and/or the sufficiency of the evidence.

Opinion:
FRANK, POSTMASTER GENERAL OF THE UNITED STATES, et al. v. MINNESOTA NEWSPAPER ASSOCIATION, INC.
No. 87-1956.
Argued March 22, 1989
Decided April 25, 1989
Paul J. Larkin, Jr., argued the cause for appellants. With him on the briefs were former Solicitor General Fried, Acting Solicitor General Bryson, Assistant Attorney General Bolton, Deputy Solicitor General Merrill, and Irene M. Solet.
P. Cameron DeVore argued the cause for appellee. With him on the brief were Mark R. Anfinson and Marshall J. Nelson.
Briefs of amici curiae urging affirmance were filed for the American Civil Liberties Union et al. by John P. Borger, Robert Hicks, and Steven R. Shapiro; and for the Association of National Advertisers by Burt Near borne and Gilbert H. Weil.
P. Cameron DeVore, Marshall J. Nelson, W. Terry Maguire, René P. Milam, Charles V. Hamm, and Jeanne S. Whiteing filed a brief for the American Newspaper Publishers Association et al. as amici curiae.
Per Curiam.
We initially noted probable jurisdiction of an appeal and a cross-appeal in this matter. 488 U. S. 815 (1988). Appellee filed suit in District Court to bar enforcement of 18 U. S. C. § 1302, based on the First Amendment and the Due Process Clause of the Fifth Amendment. The suit sought declaratory and injunctive relief against the Postmaster General, among others. Section 1302 prohibits the mailing of any “publication of any kind containing any advertisement of any lottery, gift enterprise, or scheme of any kind offering prizes dependent in whole or in part upon lot or chance, or containing any list of the prizes drawn or awarded by means of any such lottery, gift enterprise, or scheme.” The District Court found § 1302 valid as applied to advertisements, but unconstitutional as applied to prize lists, because the statute could prevent the publication of prize lists in news reports. The District Court granted an injunction limited to the latter issue. Minnesota Newspaper Assn., Inc. v. Postmaster General, 677 F. Supp. 1400 (Minn. 1987). Appellants sought review of the ruling on prize lists, and appellee cross-appealed from the ruling on advertisements.
After the Court had noted probable jurisdiction of both appeals, Congress passed two laws affecting the coverage of § 1302. Charity Games Advertising Clarification Act of 1988, §2(a), Pub. L. 100-625, 102 Stat. 3205 (Nov. 7, 1988); Indian Gaming Regulatory Act, §21, Pub. L. 100-497, 102 Stat. 2486 (Oct. 17, 1988). Although the first statute does not take effect until May 7, 1990, the parties agreed to dismiss the cross-appeal under this Court’s Rule 53. Minnesota Newspaper Assn., Inc. v. Postmaster General, 488 U. S. 998 (1989).
In this Court, appellants now take the position that the statute does not apply to the noncommercial publishing of prize lists. Brief for Appellants 12, 14-30. In light of this concession, appellee, the original plaintiff in the case, states its willingness to forgo any further claim to the declaratory and equitable relief sought in its complaint. In these circumstances, we conclude that there is no longer any live controversy on the issue whether the statute is constitutional as it applies to prize lists, and that this appeal is moot. There is no justification for our retaining jurisdiction of a civil case where no real controversy is before us. Deakins v. Monaghan, 484 U. S. 193, 200-201 (1988). We therefore vacate the judgment below and remand for the District Court to dismiss the portions of the complaint remaining at issue on this appeal. See id., at 200; United States v. Munsingwear, Inc., 340 U. S. 36, 39-40 (1950).
It is so ordered.
Justice White and Justice Marshall dissent.

Question: What is the basis of the Supreme Court's decision?

Choices:
judicial review (national level)
judicial review (state level)
Supreme Court supervision of lower federal or state courts or original jurisdiction
statutory construction
interpretation of administrative regulation or rule, or executive order
diversity jurisdiction
federal common law

Answer: 0