Advocacy for the Agreed Sentencing Recommendation Does Not, Without More, Breach a Plea Agreement

Case: United States v. Tuell, No. 26-5086
Court: United States Court of Appeals for the Tenth Circuit
Date: November 4, 2026
Disposition: Government’s motion to enforce the appeal waiver granted; appeal dismissed.

Precedential status: This per curiam order and judgment expressly states that it is not binding precedent, except under law of the case, res judicata, and collateral estoppel. It may nevertheless be cited for its persuasive value under the applicable federal and circuit rules.

1. Introduction

In United States v. Tuell, the Tenth Circuit considered whether a prosecutor breached a plea agreement by using allegedly inflammatory, murder-related descriptions to support the precise sentence the government had promised to recommend. The defendant, Kory Bryan Tuell, argued that this asserted breach prevented enforcement of his appellate waiver. The court rejected that argument because the agreement did not restrict the government’s characterization of the killing or its reasons for recommending the agreed sentence.

The decision illustrates a distinction between advocating forcefully for a promised sentencing recommendation and undermining that recommendation. A prosecutor may breach an agreement by nominally making the promised recommendation while substantively arguing against it. Here, however, the government’s recommendation and supporting advocacy pointed toward the same agreed outcome: twenty-five years’ imprisonment.

The ruling does not establish a new binding circuit rule. Its significance lies in its application of existing plea-agreement and appellate-waiver principles to an agreement that specified a sentencing recommendation without restricting the arguments supporting it.

2. Background and Issues Presented

The charges and negotiated agreement

A federal grand jury initially charged Tuell with First Degree Murder in Indian Country under 18 U.S.C. §§ 1151, 1153, and 1111. The government subsequently charged him by felony information with Voluntary Manslaughter in Indian Country and Carrying, Using, Brandishing, and Discharging a Firearm During and in Relation to a Crime of Violence.

Tuell pleaded guilty to those two offenses under Federal Rule of Criminal Procedure 11(c)(1)(B). In exchange, the government promised to recommend twenty-five years’ imprisonment and move to dismiss the original murder indictment at sentencing.

The agreement expressly allowed the defense to seek a sentence below the government’s recommendation, including a sentence within or below the applicable Sentencing Guidelines range. It also contained a broad waiver of appellate rights covering Tuell’s conviction and sentence, while preserving his right to appeal a sentence exceeding twenty-five years.

The sentencing proceedings

The district court calculated the following advisory sentencing ranges:

Component Sentence or range
Voluntary manslaughter 63–78 months
Consecutive firearm sentence 120 months
Combined advisory range 183–198 months
Government’s recommendation 300 months, or 25 years
Defense request 180 months, or 15 years

The government sought an upward variance to the agreed twenty-five-year recommendation. Tuell sought a slight downward variance. The district court imposed twenty-five years, and the government then successfully moved to dismiss the original indictment.

Tuell did not object that the government had breached the agreement. He nevertheless appealed, prompting the government to move to enforce the appellate waiver.

The central questions

  1. Must the court address an alleged government breach before enforcing an appellate waiver?
  2. Did the government breach its promise by allegedly characterizing the killing as murder while recommending the agreed twenty-five-year sentence?
  3. What standard governs a breach argument not raised in the district court?

3. Summary of the Opinion

The Tenth Circuit agreed with Tuell on the required sequence of analysis: because a government breach can render an appellate waiver unenforceable, the court first had to consider his breach allegation.

Because Tuell had not preserved that allegation at sentencing, the court applied plain-error review. It then examined the agreement’s express terms and concluded that there was no error at all.

The government had promised to recommend twenty-five years and dismiss the indictment. It fulfilled those promises. The agreement did not require the government to characterize the killing in a particular way, avoid inflammatory language, or refrain from comparisons with second-degree murder. Accordingly, Tuell could not establish a breach merely by challenging the arguments used to support the promised recommendation.

With no breach established, and no other asserted basis for refusing to enforce the waiver, the court granted the government’s motion and dismissed the appeal. It did not separately decide whether the sentence was substantively reasonable or whether the upward variance would withstand ordinary appellate review.

4. Analysis of the Precedents Cited

United States v. Hahn, 359 F.3d 1315 (10th Cir. 2004)

United States v. Hahn supplies the governing framework for enforcing an appellate waiver. The court asks whether:

  1. The disputed appeal falls within the waiver’s scope;
  2. The defendant knowingly and voluntarily waived appellate rights; and
  3. Enforcement would result in a miscarriage of justice.

The government maintained that all three conditions favored enforcement. The sentence also fell at, rather than above, the agreement’s twenty-five-year threshold for a reserved sentencing appeal.

Tuell argued that the Hahn analysis was irrelevant because the government had breached the plea agreement. The court treated breach as a preliminary issue, not as a reason to abandon appellate-waiver doctrine. Once it rejected the breach claim, there was no remaining challenge to enforcement requiring extended discussion of the three Hahn conditions.

United States v. Rodriguez-Rivera, 518 F.3d 1208 (10th Cir. 2008)

United States v. Rodriguez-Rivera supplied two central principles.

First, an appellate waiver is not enforceable if the government breaches its obligations under the plea agreement. This principle explains why the court considered Tuell’s objection despite the waiver: a waiver does not automatically insulate the government’s own compliance from judicial scrutiny.

Second, courts interpret plea agreements using general contract-law principles, looking to the agreement’s express language to identify the government’s promise and the defendant’s reasonable understanding when entering the plea.

Applying that method, the court distinguished the promises actually made from restrictions Tuell sought to infer. A promise to recommend twenty-five years did not, under this agreement, include a separate promise to avoid particular descriptions of the underlying conduct.

United States v. Ruiz, 125 F.4th 1342 (10th Cir. 2025)

United States v. Ruiz established the applicable standard of review: an unpreserved allegation that the government breached a plea agreement is reviewed for plain error.

The court also discussed Ruiz as a contrasting sentencing-advocacy case. There, the government raised criminal-history concerns that allegedly undermined its recommendation for a sentence at the low end of the Guidelines range. As the present opinion carefully explained, Ruiz assumed without deciding that plain error had occurred regarding a breach. It therefore should not be described as conclusively holding that the government breached the agreement in that case.

The contrast nevertheless mattered. In Tuell’s case, the challenged advocacy supported, rather than undercut, the promised recommendation.

United States v. Weiss, 630 F.3d 1263 (10th Cir. 2010)

United States v. Weiss supplied the four-part plain-error test. A defendant must demonstrate an error that is plain, affects substantial rights, and seriously affects the fairness, integrity, or public reputation of judicial proceedings.

Tuell’s claim failed at the first requirement. Because the government did not breach the agreement, there was no error. The court therefore had no need to determine whether an error was obvious, prejudicial, or sufficiently damaging to the judicial process to warrant relief.

United States v. Cachucha, 484 F.3d 1266 (10th Cir. 2007)

United States v. Cachucha marks the important boundary between permissible advocacy and a recommendation undermined by the prosecutor’s own statements. The government there agreed to recommend a Guidelines sentence but described such a sentence as “way too low” and “incredibly low,” while questioning whether the Guidelines made sense.

The cited decision found that this crossed the line from unpersuasive support for an agreement into effectively arguing against it. A prosecutor cannot necessarily satisfy a plea promise simply by reciting the agreed recommendation while urging the sentencing court to reject its substance.

Tuell’s circumstances were different. The government promised a twenty-five-year recommendation and offered arguments supporting twenty-five years. Although Tuell objected to those arguments’ characterization of his conduct, they did not contradict the sentencing position the government had agreed to take.

5. The Court’s Legal Reasoning

A. The agreement’s actual promises controlled

The court’s reasoning began with the negotiated language, not with a general expectation that a reduced charge would require restrained sentencing advocacy. The agreement specified the government’s recommended sentence and preserved the defense’s freedom to seek less. It did not impose corresponding limits on the government’s supporting arguments.

This distinction was decisive. Tuell identified no contractual provision requiring the government to describe the offense only in particular terms or prohibiting comparisons with more serious homicide conduct.

B. A reduced charge did not establish an additional advocacy restriction

Tuell argued that the government had acknowledged voluntary manslaughter as the offense of conviction and then improperly advocated for “a murder sentence.” The court did not treat the government’s acceptance of the manslaughter plea as an implied promise governing every description used at sentencing.

The narrower conclusion was that accepting a plea to voluntary manslaughter did not, on these terms, prohibit the government from using the challenged comparisons to support the separately agreed sentencing recommendation. The opinion did not hold that charging decisions and offense descriptions can never matter when interpreting a different plea agreement.

C. Both parties exercised the positions reserved to them

The structure of the bargain supported the result. The government was to recommend twenty-five years; the defense remained free to argue for less. At sentencing, each side did precisely that.

The fact that the twenty-five-year recommendation exceeded the calculated Guidelines range did not itself create a breach. The agreement specified a fixed recommendation rather than promising a recommendation within the eventual Guidelines range.

D. Substance matters, but it favored enforcement here

The court did not adopt a purely formal rule under which stating the agreed number always establishes compliance. Its discussion of United States v. Cachucha shows that surrounding advocacy can defeat an otherwise nominal recommendation.

Here, however, the government advocated the promised sentence “in form and substance.” The allegedly inflammatory descriptions reinforced its agreed position rather than functioning as an indirect request for something else.

E. The holding has identifiable limits

The decision does not authorize prosecutors to disregard express advocacy restrictions, undermine promised recommendations, or treat every sentencing statement as permissible merely because the agreed sentence is mentioned. Nor did the court resolve a separate claim that the sentencing court relied on inaccurate information. Its conclusion addressed the contractual breach theory Tuell presented.

6. Potential Impact

Drafting plea agreements

The decision underscores the value of precision. If a negotiated bargain is intended to restrict offense characterizations, comparisons with dismissed charges, or particular sentencing arguments, those restrictions should be expressed clearly. This opinion makes it difficult to infer such limitations solely from the government’s agreement to a reduced charge and a specified recommendation.

Evaluating prosecutorial compliance

The opinion offers a practical distinction for future disputes: does the challenged advocacy support the promised recommendation, or does it undermine it? That inquiry remains sensitive to the agreement’s actual terms. A fixed-sentence recommendation and a promise to recommend a Guidelines sentence may create materially different advocacy obligations.

Preserving objections

Tuell’s failure to object triggered plain-error review. Although preservation would not have changed this court’s conclusion that no breach occurred, a timely objection can identify the alleged violation and permit the district court to address it before the case reaches appeal.

Understanding appellate waivers

The ruling illustrates that a plea agreement may permit a defendant to seek a lower sentence while restricting an appeal if that request fails. Permission to argue for fifteen years did not preserve an appeal from a twenty-five-year sentence covered by the waiver.

Because the order is nonprecedential, these implications are persuasive rather than newly binding. The opinion’s principal contribution is a concrete application of existing Tenth Circuit doctrine.

7. Complex Concepts Simplified

Rule 11(c)(1)(B) plea agreement
An agreement under which the government makes a sentencing recommendation that does not bind the judge. Here, the government promised to recommend twenty-five years, not to guarantee the court’s sentence.
Appellate waiver
A defendant’s agreement to give up specified appeal rights. Its language determines what appeals remain available. Tuell retained a sentencing appeal if the sentence exceeded twenty-five years.
Breach of a plea agreement
A failure to honor a negotiated promise. The question is not simply whether a party dislikes the other side’s advocacy, but whether that advocacy violates the agreement’s obligations.
Upward or downward variance
A sentence above or below the advisory Guidelines range. The government sought an upward variance to 300 months; Tuell sought a downward variance to 180 months.
Consecutive sentence
A sentence served in addition to, rather than simultaneously with, another sentence. The firearm term added 120 months to the manslaughter range.
Plain-error review
A demanding appellate standard generally used when an objection was not raised below. Tuell could not satisfy its first requirement because the court found no breach.
Nonprecedential order
A decision that ordinarily does not bind courts in other cases, although its reasoning may be persuasive. Its stated exceptions concern the continuing or preclusive effect of judgments under law of the case, res judicata, and collateral estoppel.

8. Conclusion

United States v. Tuell emphasizes that plea-agreement enforcement depends on the promises actually negotiated. The government recommended the agreed twenty-five-year sentence, supported that recommendation, and obtained dismissal of the original indictment. Because the agreement did not restrict the challenged sentencing characterizations, Tuell established no breach.

The broader lesson is twofold: courts examine the substance of sentencing advocacy, but they do not automatically add unexpressed advocacy restrictions to a plea bargain. With no breach and no other challenge to enforceability, the appellate waiver required dismissal.