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:
CROWELL, SECRETARY OF STATE OF TENNESSEE, et al. v. MADER et al.
No. 78-1780.
Judgment vacated and case remanded October 1, 1979—
Rehearing granted and case decided February 19, 1980
Per Curiam.
The petition for rehearing is granted.
In Kopald v. Carr, 343 F. Supp. 51 (MD Tenn. 1972), the District Court applied this Court’s earlier holding in Baker v. Carr, 369 U. S. 186 (1962), to invalidate two senatorial dis-tricting plans. That decision resulted in the formulation of a so-called court ordered “Kopald Plan.” That plan was superseded by a 1973 legislative plan.
In this litigation the District Court invalidated the 1973 legislative plan. It enjoined the defendants from conducting any elections pursuant to that plan and retained jurisdiction to review whatever substitute the Tennessee General Assembly might enact prior to June 1, 1979, or, if necessary, to reinstate the 1972 “Kopald Plan.” The court further ordered a hearing to award fees to plaintiffs’ counsel.
In response to the State’s appeal to this Court, appellees pointed out that the legislature had enacted a new plan effective on June 6, 1979, argued that the controversy over the validity of the 1973 legislative plan had therefore become moot; and requested that the appeal therefore be dismissed. This Court, following a practice that is appropriate when an entire case has become moot but which is inappropriate when only the issues raised on appeal have been resolved, entered an order directing that the judgment of the District Court be vacated and that the entire action be dismissed as moot. Post, p. 806.
The recent legislation did not moot the entire case, but only the issues raised on appeal. Appellees may still wish to attack the newly enacted legislation or apply for attorney’s fees. We therefore vacate our prior order. In lieu thereof, we direct that the judgment of the District Court be vacated without prejudice to such further proceedings in the District Court as may be appropriate. See Diffenderfer v. Central Baptist Church, 404 U. S. 412 (1972).
It is so ordered.

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: 2