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:
SACHER v. ASSOCIATION OF THE BAR OF THE CITY OF NEW YORK et al.
No. 307.
Argued March 11, 1954.
Decided April 5, 1954.
Telford Taylor argued the cause and filed a brief for petitioner.
Eli Whitney Debevoise argued the cause and filed a brief for respondents.
Per Curiam.
This is a proceeding brought by respondent bar associations in the United States District Court for the Southern District of New York for the disbarment of petitioner from practice in that court. Petitioner had previously been convicted of contempt in the same court. See Sacher v. United States, 343 U. S. 1.
The District Court, after disallowing eight of the specifications in the petition for disbarment, found as to the others that there was no conspiracy as charged therein and no moral turpitude involved, and that the proven contumacious conduct of petitioner stemmed from an excess of zeal for his clients that obscured his recognition of responsibility as an officer of the court. All of the conduct complained of occurred in one protracted trial involving many defendants and counsel. See Dennis v. United States, 341 U. S. 494. There was no allegation or proof of prior misconduct in petitioner's twenty-four years of practice. The Court of Appeals divided upon the propriety of permanent disbarment, but unanimously questioned the importance of one of the two specifications principally relied on by the trial court.
At the time the District Court made its decision in this case, the contempt judgment was under review on appeal, and it did not know and could not know that petitioner would be obliged to serve, as he did, a six months’ sentence for the same conduct for which it disbarred him.
In view of this entire record and of the findings of the courts below, we are of the opinion that permanent disbarment in this case is unnecessarily severe. The judgment is reversed and the case remanded to the District Court for further consideration and appropriate action not inconsistent with this opinion.
Me. Justice Burton would affirm the judgment of the Court of Appeals.
Mr. Justice Clark took no part in the consideration or decision of this case.

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