486 U.S. 153 (1988)
Mark Wheat was charged along with numerous codefendants with participating in a far-flung drug distribution conspiracy. Over a period of several years, many thousands of pounds of marijuana were transported from Mexico and other locations to southern California.1 Wheat acted primarily as an intermediary in the distribution ring; he received and stored large shipments of marijuana at his home, then distributed the marijuana to customers in the region.2
Also charged in the conspiracy were Juvenal Gomez-Barajas and Javier Bravo, who were represented in their criminal proceedings by attorney Eugene Iredale.3 Gomez-Barajas was tried first and was acquitted on drug charges overlapping with those against Wheat.4 To avoid a second trial on other charges, Gomez-Barajas offered to plead guilty to tax evasion and illegal importation of merchandise.5 At the commencement of Wheat’s trial, the District Court had not accepted the plea; Gomez-Barajas was thus free to withdraw his guilty plea and proceed to trial.6 Bravo decided to forgo trial and plead guilty to one count of transporting approximately 2,400 pounds of marijuana from Los Angeles to a residence controlled by Victor Vidal.7
At the conclusion of Bravo’s guilty plea proceedings on August 22, 1985, Iredale notified the District Court that he had been contacted by Wheat and had been asked to try Wheat’s case as well.8 The Government objected to Wheat’s proposed substitution on the ground that Iredale’s representation of Gomez-Barajas and Bravo created a serious conflict of interest.9 The Government’s position was premised on two possible conflicts.10 First, if the plea arrangement for Gomez-Barajas were rejected by the court, Gomez-Barajas would be free to withdraw the plea and stand trial, and Wheat would likely be called as a witness for the Government.11 Second, the Government believed that a portion of the marijuana delivered by Bravo eventually was transferred to Wheat, and it contacted Iredale and asked that Bravo be made available as a witness to testify against Wheat.12
In response, Wheat emphasized his right to have counsel of his own choosing and the willingness of Gomez-Barajas, Bravo, and Wheat to waive the right to conflict-free counsel.13 Wheat argued that the circumstances posited by the Government that would create a conflict for Iredale were highly speculative.14 After hearing argument from each side, the District Court ruled that an irreconcilable conflict of interest existed that could not be waived and denied Wheat’s request to substitute Iredale as attorney of record.15 Wheat proceeded to trial with his original counsel and was convicted of conspiracy to possess more than 1,000 pounds of marijuana with intent to distribute and five counts of possessing marijuana with intent to distribute.16
The Court of Appeals for the Ninth Circuit affirmed Wheat’s convictions.17 Because the Courts of Appeals have expressed substantial disagreement about when a district court may override a defendant’s waiver of his attorney’s conflict of interest, the Supreme Court granted certiorari.18
Whether the District Court erred in declining petitioner’s waiver of his right to conflict-free counsel and by refusing to permit petitioner’s proposed substitution of attorneys?19
The Sixth Amendment guarantees that in all criminal prosecutions the accused shall enjoy the right to have the assistance of counsel for his defence.20 This right includes a qualified right to counsel of one's own choosing.21 The essential aim of the Amendment is to guarantee an effective advocate for each criminal defendant rather than to ensure that a defendant will inexorably be represented by the lawyer whom he prefers.22 Multiple representation of criminal defendants engenders special dangers of which a court must be aware.23 Federal courts have an independent interest in ensuring that criminal trials are conducted within the ethical standards of the profession and that legal proceedings appear fair to all who observe them.24 Where a court justifiably finds an actual conflict of interest, there can be no doubt that it may decline a proffer of waiver and insist that defendants be separately represented.25 District courts must be allowed substantial latitude in refusing waivers of conflicts of interest. This latitude applies not only in those rare cases where an actual conflict may be demonstrated before trial. It also applies in the more common cases where a potential for conflict exists which may or may not burgeon into an actual conflict as the trial progresses.26
No. The District Court did not err in declining Wheat's waiver of his right to conflict-free counsel and refusing to permit the proposed substitution of Iredale as counsel.27 The Government demonstrated a serious potential for conflict arising from Iredale's representation of Bravo, whom the Government intended to call as a witness against Wheat, which would have prevented meaningful cross-examination.28 Additionally, the potential that Gomez-Barajas' plea would be rejected and that Wheat would testify against him created another ethical dilemma for Iredale.29 Given that the motion for substitution was made close to the time of trial, the District Court properly relied on its instinct and judgment based on experience in finding an irreconcilable conflict.30
The court acted within the broad latitude accorded to trial courts when it determined that the presumption in favor of counsel of choice was overcome by the showing of a serious potential for conflict.31
Related opinions on this issue
Justice Marshall dissented from the majority's decision to uphold the District Court's ruling.34 He argued that the trial court's determination regarding the potential for conflict is a mixed question of law and fact that should not receive deference on appeal, particularly given its constitutional significance.35 Marshall maintained that the potential conflicts identified were based on dubious speculation, as the plea agreement for Gomez-Barajas was likely to be accepted and Bravo's testimony did not implicate Wheat or necessitate cross-examination by Iredale.36
He concluded that the Government failed to show a substantial potential for serious conflict.37 The District Court therefore had no authority to deny Wheat his Sixth Amendment right to counsel of his choice, requiring reversal of the conviction.38
Justice Stevens also dissented, agreeing with Marshall that the Court exaggerated the significance of the potential conflict.39 He emphasized that the informed and voluntary character of the clients' waivers should have been given greater weight.40 Stevens pointed out that the motion was to add Iredale as additional counsel rather than to substitute him entirely, and that other counsel would have remained available to assist in the defense.41
He concluded that the District Court abused his discretion in denying the motion. This deprived Wheat of a fundamental constitutional right and necessitated reversal.42