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:
BAILEY et al. v. PATTERSON et al.
No. 643.
Decided February 26, 1962.
Constance Baker Motley, Jack Greenberg, James M. Nabrit III and R. Jess Brown for appellants.
Dugas Shands and Edward L. Cates, Assistant Attorneys General of Mississippi, and Charles Clark, Special Assistant Attorney General, for Patterson, Thomas H. Watkins for the City of Jackson, Mississippi, et al., and Junior O’Mara for the Greyhound Corporation et al., appellees.
Per Curiam.
Appellants, Negroes living in Jackson, Mississippi, brought this civil rights action, 28 U. S. C. § 1343 (3), in the United States District Court for the Southern District of Mississippi, on behalf of themselves and others similarly situated, seeking temporary and permanent injunctions to enforce their constitutional rights to nonsegregated service in interstate and intrastate transportation, alleging that such rights had been denied them under color of state statutes, municipal ordinances, and state custom and usage. A three-judge District Court was convened, 28 U. S. C. § 2281, and, Circuit Judge Rives dissenting, abstained from further proceedings pending construction of the challenged laws by the state courts. 199 F. Supp. 595. Plaintiffs have appealed, 28 U. S. C. § 1253; N. A. A. C. P. v. Bennett, 360 U. S. 471. We denied a motion to stay the prosecution of a number of criminal cases pending disposition of this appeal. 368 U. S. 346.
Appellants lack standing to enjoin criminal prosecutions under Mississippi’s breach-of-peace statutes, since they do not allege that they , have been prosecuted or threatened with prosecution under them. They cannot represent a class of whom they are not a part. McCabe v. Atchison, T. & S. F. R. Co., 235 U. S. 151, 162-163. But as passengers using the segregated transportation facilities they are aggrieved parties and have standing to enforce their rights to nonsegregated treatment. Mitchell v. United States, 313 U. S. 80, 93; Evers v. Dwyer, 358 U. S. 202.
We have settled beyond question that no State may require racial segregation of interstate or intrastate transportation facilities. Morgan v. Virginia, 328 U. S. 373; Gayle v. Browder, 352 U. S. 903; Boynton v. Virginia, 364 U. S. 454. The question is no longer open; it is foreclosed as a litigable issue. Section 2281 does not require a three-judge court when the claim that a statute is unconstitutional is wholly insubstantial, legally speaking nonexistent. Ex parte Poresky, 290 U. S. 30; Bell v. Waterfront Comm’n, 279 F. 2d 853, 857-858. We hold that three judges are similarly not required when, as here, prior decisions make frivolous any claim that a state statute on its face is not unconstitutional. Willis v. Walker, 136 F. Supp. 181; Bush v. Orleans Parish School Board, 138 F. Supp. 336; Kelley v. Board of Education, 139 F. Supp. 578. We denied leave to file petitions for mandamus in Bush, 351 U. S. 948, and from a similar ruling in Booker v. Tennessee Board of Education, 351 U. S. 948. The reasons for convening an extraordinary court are inapplicable in such cases, for the policy behind the three-judge requirement — that a single judge ought not to be empowered to invalidate a state statute under a federal claim — does not apply. The three-judge requirement is a technical one to be narrowly construed, Phillips v. United States, 312 U. S. 246, 251. The statute comes into play only when an injunction is sought “upon the ground of the unconstitutionality” of a statute. There is no such ground when the constitutional issue presented is essentially fictitious.
This case is therefore not one “required ... to be heard and determined by a district court of three judges,” 28 U. S. C. § 1253, and therefore cannot be brought here on direct appeal. However, we have jurisdiction to determine the authority of the court below and “to make such corrective order as may be appropriate to the enforcement of the limitations which that section imposes,” Gully v. Interstate Natural Gas Co., 292 U. S. 16, 18; Oklahoma Gas & Elec. Co. v. Oklahoma Packing Co., 292 U. S. 386, 392; Phillips v. United States, 312 U. S. 246, 254. Accordingly, we vacate the judgment and remand the case to the District Court for expeditious disposition, in light of this opinion, of the appellants’ claims of right to unsegregated transportation service.
Vacated and remanded.
The statutes in question are Miss. Code, 1942, Tit. 11, §§ 2351, 2351.5, 2351.7, and Tit. 28, §§ 7784, 7785, 7786, 7786-01, 7787, 7787.5.

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