Date: Jul 4, 2026

McCoy Structural Error Requires a Contemporaneous, Express Objection to Counsel’s Guilt Concession (and Mitigation-Concession Does Not Trigger Cronic)

Case: United States v. Sago (10th Cir. July 1, 2026) (published)

Posture: Appeal from denial of 28 U.S.C. § 2255 motion; COA granted on counsel’s guilt-concession/meaningful-adversarial-testing claim.

I. Introduction

In United States v. Sago, the Tenth Circuit addressed a recurring Sixth Amendment problem: when defense counsel concedes some form of guilt as a mitigation strategy, does that concession (1) usurp the defendant’s autonomy and constitute structural error under McCoy v. Louisiana, (2) amount to a constructive denial of counsel under United States v. Cronic such that prejudice is presumed, or (3) remain an ordinary ineffective-assistance issue typically measured under Strickland v. Washington (not reached here)?

The underlying facts were stark. Kyle Quentin Sago shot and killed Daniel Morgan, who was unarmed. At trial, Sago admitted he shot Morgan, including shooting him in the back as Morgan ran away. His defense focused on defeating the first-degree murder charge by contesting premeditation and seeking conviction on the lesser-included offense of second-degree murder. After conviction and affirmance on direct appeal (United States v. Sago, 74 F.4th 1152), Sago sought § 2255 relief claiming trial counsel was ineffective, chiefly because counsel “conced[ed] guilt” to second-degree murder.

The key issues on appeal were: (1) whether counsel’s mitigation concession triggered structural error under McCoy v. Louisiana; (2) whether counsel’s performance amounted to a failure to subject the prosecution’s case to meaningful adversarial testing under United States v. Cronic; and (3) the scope of appellate review constrained by the certificate of appealability (COA), including whether it could be expanded.

II. Summary of the Opinion

The Tenth Circuit affirmed the denial of § 2255 relief. It held:

No McCoy v. Louisiana structural error: the record contained no contemporaneous indication that Sago expressly objected to counsel’s mitigation strategy, and the record instead suggested Sago’s objective was mitigation (he twice attempted to plead guilty to second-degree murder and admitted the shooting at trial). Therefore, counsel did not override Sago’s autonomy in the McCoy sense.
No United States v. Cronic presumed-prejudice violation: counsel did not “entirely fail” to test the prosecution’s case; he contested premeditation, requested a second-degree instruction, cross-examined witnesses, presented Sago’s testimony, and made opening and closing arguments.
COA scope and expansion: although the COA’s phrasing tracked Cronic, the panel exercised discretion to expand the COA to consider both McCoy and Cronic, relying on Honie v. Powell and United States v. Shipp.

The court declined to consider arguments beyond the COA (including Strickland prejudice, the lack of an evidentiary hearing, and failure to request an imperfect self-defense instruction).

III. Analysis

A. Precedents Cited and Their Role

1) COA Scope, Appellate Limits, and COA Expansion

Fields v. Gibson (quoting Ramsey v. Bowersox): used to enforce the rule that appellate review of habeas/§ 2255 denials is confined to issues specified in the COA. This set the boundary for what the panel would and would not decide.
Honie v. Powell (quoting United States v. Shipp): supplied the authority to expand a COA to reach uncertified constitutional claims. Here, it allowed the panel to address the structural-error theory under McCoy even though the COA’s text tracked Cronic.

2) Standards of Review for § 2255 Denials Without Evidentiary Hearing

United States v. Aguayo-Montes (quoting United States v. Barrett): established “strictly de novo” review when the district court denies a § 2255 motion as a matter of law on an uncontested trial record without an evidentiary hearing.

3) The Core Sixth Amendment Frameworks: McCoy, Nixon, Cronic, and Strickland

McCoy v. Louisiana: the centerpiece for the autonomy-based structural-error claim. The panel relied on McCoy for two propositions: (i) counsel cannot admit guilt over a client’s “express objection”; and (ii) such a violation is “structural” and not subject to harmless-error review. But the panel also emphasized that McCoy is limited to the defendant’s objective (maintaining innocence) rather than ordinary strategy disputes.
Florida v. Nixon: served as the contrast case showing that when a defendant “neither consents nor objects” to counsel’s proposed concession strategy, the claim is not automatically structural; it is typically analyzed under ordinary ineffective-assistance doctrine. The panel used Nixon to explain why the absence of contemporaneous objection matters.
United States v. Cronic: provided the presumed-prejudice rule when counsel “entirely fails” to subject the prosecution’s case to meaningful adversarial testing. The panel applied Cronic narrowly, requiring near-total breakdown of advocacy.
Strickland v. Washington: identified as the ordinary two-prong ineffective-assistance framework (deficiency and prejudice), but the court did not reach it because the COA did not encompass a full Strickland analysis.

4) Tenth Circuit and Other Supporting Authority on Concessions and Autonomy

United States v. Holloway: cited to underscore that McCoy does not extend to “strategic disputes” (e.g., conceding elements) when the defendant’s overarching objective is not to maintain factual innocence.
United States v. Williamson: invoked to explain that, before McCoy, this circuit often analyzed unauthorized guilt admissions under Cronic, contextualizing why the COA language could be read to cover either doctrine.
Hooks v. Workman: supplied the circuit’s articulation of when Cronic applies (a “breakdown in the adversarial process”), and supported the conclusion that active trial participation defeats presumed prejudice.

5) Footnote Authorities on Preservation and Structural Error in Postconviction Posture

United States v. Poterbin: cited for the general direct-appeal practice of deferring ineffective-assistance claims to postconviction review for factual development.
Meadows v. Lind: discussed for the problem of structural error raised through postconviction ineffective-assistance framing, and whether prejudice must be shown when the structural issue was unpreserved.
United States v. Felicianosoto: referenced to suggest skepticism that a defendant who proves McCoy error in postconviction posture should be required to show Strickland prejudice, given McCoy’s autonomy framing.
Crawford v. Mississippi (mem.) (Sotomayor, J., dissenting): used to reinforce McCoy’s distinction between objectives (e.g., insisting on innocence) and strategy (how best to achieve an objective).

6) The Case’s Prior Direct-Appeal Decision

United States v. Sago, 74 F.4th 1152: supplied the factual background and the direct-appeal holding that the district court was not required to give an imperfect self-defense instruction absent a request, as well as the panel’s observation about the difficulty of reconciling premeditation with a fear-based imperfect self-defense theory on these facts. While not dispositive here, it contextualized why counsel pursued a mitigation strategy and why postconviction relief was difficult.

B. Legal Reasoning

1) Why No McCoy Structural Error

The opinion’s key move is to treat McCoy v. Louisiana as requiring record evidence of an express, contemporaneous objection to counsel’s admission of guilt—an objection that shows a client’s objective (maintaining innocence) was overridden. The panel contrasted Sago’s record with the “vociferous” and repeated protests in McCoy (e.g., attempts to terminate counsel, objections during opening, insistence on innocence, post-trial motions premised on the concession).

Here, the court emphasized what was not in the record: Sago did not protest counsel’s mitigation theme during trial, did not ask to replace counsel, and did not maintain factual innocence. Equally important, the court found affirmative signals that Sago’s objective aligned with mitigation:

He attempted (twice) to plead guilty to second-degree murder (a Rule 11(c)(1)(C) agreement, later withdrawn after rejection).
He admitted at trial that he shot and killed Morgan, including shots to the victim’s back while the victim fled.
His postconviction complaint was framed as disagreement over which mitigating theory to pursue (imperfect self-defense vs. contesting premeditation), not a desire to maintain factual innocence.

That distinction matters because McCoy protects a defendant’s choice of objective (e.g., “I insist I am innocent”), not disagreements over tactics to reduce culpability. On this record, the court characterized counsel’s statements as a permissible mitigation strategy consistent with Sago’s apparent objective, placing the case closer to Florida v. Nixon than to McCoy.

2) Why No Cronic Presumed Prejudice

The Cronic presumption applies only when counsel “entirely fails” to subject the prosecution’s case to meaningful adversarial testing. The panel treated “entirely” as doing substantial work: conceding a fact (that Sago was the shooter) is not the same as abandoning adversarial testing when counsel contests the charged offense’s key differentiator (premeditation) and otherwise litigates.

The court catalogued counsel’s adversarial actions:

contested premeditation (the element distinguishing first- from second-degree murder);
requested a second-degree murder lesser-included instruction (and obtained it);
cross-examined witnesses “vigorously”;
presented Sago’s testimony;
delivered opening and closing arguments, including some self-defense framing after the court added a self-defense instruction.

Under Hooks v. Workman, these features foreclose a finding that counsel “entirely fail[ed]” to test the case. Thus, no Cronic presumption of prejudice applied.

3) The COA as a Gatekeeping Device—and a Safety Valve

The court enforced the COA’s limits under Fields v. Gibson, refusing to address issues outside the certified question (including Strickland, evidentiary hearing arguments, and the imperfect self-defense instruction claim). But it also treated COA expansion as a pragmatic safety valve: because the certified issue sounded in Cronic terminology, yet the real appellate briefing focused on McCoy, the panel expanded the COA under Honie v. Powell and United States v. Shipp and resolved both theories.

C. Impact and Significance

1) Practical Rule for McCoy Claims in the Tenth Circuit

The opinion materially clarifies how McCoy v. Louisiana will be operationalized in the Tenth Circuit: a defendant seeking McCoy relief must point to contemporaneous record evidence of an express objection showing counsel overrode the defendant’s objective (typically, the objective to maintain innocence). Postconviction assertions that the defendant “would not have agreed” are unlikely to suffice absent corroboration in the trial record.

2) Concession-as-Mitigation Remains Generally Outside Cronic

The decision reinforces a narrow reading of United States v. Cronic. Even a major concession (identity as shooter; culpability to a lesser homicide) will not trigger presumed prejudice if counsel actively contests the charged offense’s distinctive element(s) and otherwise functions as an advocate. This stabilizes a common defense approach in “overwhelming evidence” cases: concede what cannot credibly be denied, and focus the jury on degree/intent.

3) Litigation Strategy: Building a Record

For defendants: if the objective is to maintain innocence, United States v. Sago signals the importance of making that objective clear on the record (through explicit statements to the court, requests to discharge counsel, or clear contemporaneous objections). For defense counsel: the case highlights the value of confirming on the record (or in writing) whether the client agrees with a concession strategy, particularly when the client’s stated goals may be ambiguous.

4) COA Expansion

The opinion also demonstrates a willingness to expand a COA to reach closely related constitutional theories when fairness and efficient adjudication warrant it, rather than forcing form-over-substance litigation about whether a concession claim is properly labeled Cronic or McCoy.

IV. Complex Concepts Simplified

Structural error (McCoy): A fundamental constitutional violation that automatically requires a new trial (no harmless-error balancing). Under McCoy v. Louisiana, it occurs when counsel admits guilt over the defendant’s express objection—because it overrides the defendant’s right to choose the objective of the defense (e.g., “I am innocent”).
Presumed prejudice (Cronic): A narrow category where courts do not ask whether counsel’s mistakes changed the outcome because the adversarial process broke down. Under United States v. Cronic, this requires that counsel “entirely fails” to test the prosecution’s case—something close to no advocacy at all.
Ordinary ineffective assistance (Strickland): The usual test for attorney error: (1) deficient performance and (2) prejudice (a reasonable probability the result would have been different). The Sago panel did not decide Strickland because it was outside the COA.
Autonomy vs. strategy: McCoy is about the defendant’s right to decide the goal (maintain innocence vs. concede guilt and seek mercy). Disputes about how best to pursue a shared goal (which mitigating theory, which arguments) are generally “strategy,” not autonomy.
Certificate of appealability (COA): A gatekeeping order specifying what issues a federal postconviction appellant may argue. The court may sometimes expand it, but issues outside the COA are ordinarily not reviewed.

V. Conclusion

United States v. Sago is a significant Tenth Circuit refinement of concession-of-guilt jurisprudence after McCoy v. Louisiana. The court drew a clear practical boundary: McCoy requires an express, contemporaneous objection indicating the defendant’s objective (typically innocence) was overridden; absent that, a mitigation concession will not be treated as structural error. And even substantial concessions will not trigger United States v. Cronic where counsel remains an active advocate contesting key elements and participating meaningfully in trial.

The decision thus protects defendants’ autonomy where clearly invoked, while preserving counsel’s ability to make credibility-based concessions as part of an adversarial mitigation strategy when the record shows no express client objection.