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:
HARRINGTON v. CALIFORNIA.
No. 750.
Argued April 23, 1969.
Decided June 2, 1969.
Roger S. Hanson, by appointment of the Court, 393 U. S. 1075, argued the cause and filed briefs for petitioner.
James H. Kline, Deputy Attorney General of California, argued the cause for respondent. With him on the brief were Thomas C. Lynch, Attorney General, and William E. James, Assistant Attorney General.
Briefs of amici curiae urging affirmance were filed by William J. Scott, Attorney General, and James R. Thompson, James B. Haddad and James B. Zagel, Assistant Attorneys General, for the State of Illinois, and by Louis J. Lefkowitz, Attorney General, Samuel A. Hirshowitz, First Assistant Attorney General, and Amy Juviler and Brenda Soloff, Assistant Attorneys General, for the State of New York, joined and supported by John D. LaBelle for the State of Connecticut, Paul J. Abbate, Attorney General, for the Territory of Guam, and by the Attorneys General for their respective States as follows: Gary K. Nelson of Arizona, Joe Purcell of Arkansas, Duke W. Dunbar of Colorado, David P. Buckson of Delaware, Earl Faircloth of Florida, Bert T. Kobayashi of Hawaii, Theodore L. Sendak of Indiana, Richard C. Turner of Iowa, Kent Frizzell of Kansas, John B. Breckinridge of Kentucky, Robert H. Quinn of Massachusetts, Douglas M. Head of Minnesota, Joe T. Patterson of Mississippi, Robert L. Woodahl of Montana, Clarence A. H. Meyer of Nebraska, James A. Maloney of New Mexico, Robert B. Morgan of North Carolina, Helgi Johanneson of North Dakota, Paul W. Brown of Ohio, Daniel R. McLeod of South Carolina, Gordon Mydland of South Dakota, George F. McCanless of Tennessee, Vernon B. Romney of Utah, Robert Y. Button of Virginia, and Slade Gorton of Washington.
Mr. Justice Douglas
delivered the opinion of the Court.
We held in Chapman v. California, 386 U. S. 18, that “before a federal constitutional error can be held harmless, the court must be able to declare a belief that it was harmless beyond a reasonable doubt.” Id., at 24. We said that, although “there are some constitutional rights so basic to a fair trial that their infraction can never be treated as harmless error” (id., at 23), not all “trial errors which violate the Constitution automatically call for reversal.” Ibid.
The question whether the alleged error in the present case was “harmless” under the rule of Chapman arose in a state trial for attempted robbery and first-degree murder. Four men were tried together — Harrington, a Caucasian, and Bosby, Rhone, and Cooper, Negroes— over an objection by Harrington that his trial should be severed. Each of his three codefendants confessed and their confessions were introduced at the trial with limiting instructions that the jury was to consider each confession only against the confessor. Rhone took the stand and Harrington’s counsel cross-examined him. The other two did not take the stand.
In Bruton v. United States, 391 U. S. 123, a confession of a codefendant who did not take the stand was used against Bruton in a federal prosecution. We held that Bruton had been denied his rights under the Confrontation Clause of the Sixth Amendment. Since the Confrontation Clause is applicable as well in state trials by reason of the Due Process Clause of the Fourteenth Amendment (Pointer v. Texas, 380 U. S. 400), the rule of Bruton applies here.
The California Court of Appeal affirmed the convictions, 256 Cal. App. 2d 209, 64 Cal. Rptr. 159, and the Supreme Court denied a petition for a hearing. We granted the petition for certiorari to consider whether the violation of Bruton was on these special facts harmless error under Chapman.
Petitioner made statements which fell short of a confession but which placed him at the scene of the crime. He admitted that Bosby was the trigger man; that he fled with the other three; and that after the murder he dyed his hair black and shaved off his moustache. Several eyewitnesses placed petitioner at the scene of the crime. But two of them had previously told the police that four Negroes committed the crime. Rhone’s confession, however, placed Harrington inside the store with a gun at the time of the attempted robbery and murder.
Cooper’s confession did not refer to Harrington by name. He referred to the fourth man as “the white boy” or “this white guy.” And he described him by age, height, and weight.
Bosby’s confession likewise did not mention Harrington by name but referred to him as a blond-headed fellow or “the white guy” or “the Patty.”
Both Cooper and Bosby said in their confessions that they did not see “the white guy” with a gun, which is at variance with the testimony of the prosecution witnesses.
Petitioner argues that it is irrelevant that he was not named in Cooper’s and Bosby’s confessions, that reference to “the white guy” made it as clear as pointing and shouting that the person referred to was the white man in the dock with the three Negroes. We make the same assumption. But we conclude that on these special facts the lack of opportunity to cross-examine Cooper and Bosby constituted harmless error under the rule of Chapman.
Rhone, whom Harrington’s counsel cross-examined, placed him in the store with a gun at the time of the murder. Harrington himself agreed he was there. Others testified he had a gun and was an active participant. Cooper and Bosby did not put a gun in his hands when he denied it. They did place him at the scene of the crime. But others, including Harrington himself, did the same. Their evidence, supplied through their confessions, was of course cumulative. But apart from them the case against Harrington was so overwhelming that we conclude that this violation of Bruton was harmless beyond a reasonable doubt, unless we adopt the minority view in Chapman (386 U. S., at 42-45) that a departure from constitutional procedures should result in an automatic reversal, regardless of the weight of the evidence.
It is argued that we must reverse if we can imagine a single juror whose mind might have been made up because of Cooper’s and Bosby’s confessions and who otherwise would have remained in doubt and unconvinced. We of course do not know the jurors who sat. Our judgment must be based on our own reading of the record and on what seems to us to have been the probable impact of the two confessions on the minds of an average jury. We admonished in Chapman, 386 U. S., at 23, against giving too much emphasis to “overwhelming evidence” of guilt, stating that constitutional errors affecting the substantial rights of the aggrieved party could not be considered to be harmless. By that test we cannot impute reversible weight to the two confessions.
We do not depart from Chapman; nor do we dilute it by inference. We reaffirm it. We do not suggest that, if evidence bearing on all the ingredients of the crime is tendered, the use of cumulative evidence, though tainted, is harmless error. Our decision is based on the evidence in this record. The ease against Harrington was not woven from circumstantial evidence. It is so overwhelming that unless we say that no violation of Bruton can constitute harmless error, we must leave this state conviction undisturbed.
Affirmed.
All four were found to have participated in an attempted robbery in the course of which a store employee was killed. Each was found guilty of felony murder and sentenced to life imprisonment.
“All persons aiding and abetting the commission of a robbery are guilty of first degree murder when one of them kills while acting in furtherance of the common design.” People v. Washington, 62 Cal. 2d 777, 782, 402 P. 2d 130, 133.

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: 6
2