United States v. Aaron Loines: Harmless-Error Review for § 851 Serious-Drug-Felony Factfinding and “Finality” Defined by Expired Appeal Period

I. Introduction

United States v. Aaron Loines addresses how federal drug recidivist enhancements operate when the enhancement depends not only on the existence of a prior conviction, but also on post-conviction facts—specifically whether the defendant “served” more than 12 months and whether release occurred within 15 years—contained in the “serious drug felony” definition. The case also tests how far courts may review a prosecutor’s decision to seek an enhancement under 21 U.S.C. § 851, and it reaffirms what it means for a prior conviction to have “become final” under 21 U.S.C. § 841(b)(1).

The defendant-appellant, Aaron Loines, pleaded guilty (without a plea agreement) to a fentanyl-related conspiracy and substantive drug counts arising from a Cleveland drug ring investigated in 2022–2023. The government sought an increased statutory minimum under § 841(b)(1)(B) based on Loines’s April 2023 federal drug conviction. The district court applied the enhancement after a § 851 hearing and also applied the Guidelines career-offender enhancement. Loines appealed on constitutional, statutory, and due-process theories.

II. Summary of the Opinion

III. Analysis

A. Precedents Cited

1) Jury factfinding, mandatory minimums, and the “prior conviction” exception

• Alleyne v. United States, 570 U.S. 99 (2013): Supplies the baseline rule that any fact increasing a mandatory minimum must be found by a jury beyond a reasonable doubt. The Loines panel treats this as the starting point for evaluating § 851’s judge-found facts.
• Erlinger v. United States, 602 U.S. 821 (2024): Central to the court’s framing. It reiterates the general jury-trial requirement and underscores the narrow scope of the prior-conviction exception. The Sixth Circuit uses Erlinger both to show why Loines’s constitutional argument has force (because “served” and “release within 15 years” are post-conviction facts) and to justify its analogy to ACCA factfinding for harmless-error purposes.
• Almendarez-Torres v. United States, 523 U.S. 224 (1998), and Jones v. United States, 526 U.S. 227 (1999): These cases delimit the “prior conviction” exception. Loines leverages their narrowness; the panel acknowledges the tension but declines to resolve it.
• United States v. Fields, 53 F.4th 1027 (6th Cir. 2022): A key Sixth Circuit reference point. Fields addressed the “serious drug felony” framework and highlighted the unresolved constitutional question whether a jury must find § 802(58) facts. The panel follows Fields in sidestepping the constitutional merits and focuses instead on harmlessness.

2) Harmless-error review for omitted jury findings (and what record may be used)

• Washington v. Recuenco, 548 U.S. 212 (2006): Establishes that failing to submit a sentencing factor to a jury is not structural error and can be subject to harmless-error review. This is the doctrinal bridge allowing affirmance without deciding the underlying Sixth Amendment question.
• United States v. Campbell, 122 F.4th 624 (6th Cir. 2024): Provides the Sixth Circuit’s recent framework for harmless-error analysis in the ACCA “separate occasions” setting. The Loines panel imports Campbell to the drug-enhancement context, including its “entire record” approach.
• Greer v. United States, 593 U.S. 503 (2021): Supplies a harmlessness lens for guilty-plea contexts—whether the defendant would have pleaded guilty absent the error. The panel notes this test may apply given Loines’s plea, but finds harmlessness under any plausible test.
• United States v. Thomas, 142 F.4th 412 (6th Cir. 2025): Supplies another harmlessness formulation: whether any rational jury could find the contrary. The panel again finds harmlessness under this standard.
• United States v. Lee, 100 F.4th 484 (4th Cir. 2024): Cited to support treating uncontested enhancement facts as harmless even if a jury right existed—reinforcing the cross-circuit trend toward harmless-error resolution of these issues.
• Additional references on “serious drug felony” and judicial factfinding include United States v. Williams, 2024 WL 712470, United States v. Brown, 2023 WL 1861318, United States v. Rodriguez, 851 F.3d 931 (9th Cir. 2017), and United States v. Smith, 451 F.3d 209 (4th Cir. 2006), which the panel uses to illustrate that enhancements often “depend on the fact of a prior conviction,” while acknowledging the post-conviction-fact complication.
• United States v. Guyton, 144 F.4th 449 (3d Cir. 2025): Supports the view that “served” and “release” facts go beyond the bare “fact of a prior conviction,” strengthening the argument that a jury right could attach.

3) Prosecutorial discretion and the limited role of courts

• Wayte v. United States, 470 U.S. 598 (1985), and United States v. Goodwin, 457 U.S. 368 (1982): Establish that prosecutors have broad charging discretion once probable cause exists, and that courts generally do not second-guess charging decisions.
• United States v. Armstrong, 517 U.S. 456 (1996): Supplies the presumption of regularity and the demanding burden to prove selective prosecution. The panel relies on Armstrong to reject Loines’s “arbitrary” arguments and conclusory statistics.
• Carachuri-Rosendo v. Holder, 560 U.S. 563 (2010), and United States v. LaBonte, 520 U.S. 751 (1997): Support the proposition that Congress gave prosecutors discretion over recidivist enhancements in the drug laws, reinforcing separation-of-powers concerns.
• United States v. King, 127 F.3d 483 (6th Cir. 1997), and Mullane v. Cent. Hanover Bank & Tr. Co., 339 U.S. 306 (1950): Used to emphasize due-process requirements of notice and an opportunity to be heard; the panel finds both satisfied.
• United States v. Branham, 97 F.3d 835 (6th Cir. 1996): Invoked to reject the attempt to import 18 U.S.C. § 3553(a) sentencing-factor balancing into prosecutorial charging and enhancement decisions.
• DOJ policy non-enforceability is supported by United States v. Strong, 844 F.3d 133 (2d Cir. 2016), United States v. Johnson, 628 F. App'x 124 (3d Cir. 2015), United States v. Santos, 612 F. App'x 376 (6th Cir. 2015), and United States v. Nagy, 760 F.3d 485 (6th Cir. 2014): Internal DOJ guidance does not create judicially enforceable rights.
• For Loines’s “youth” theory, the panel references equal-protection intent standards from Personnel Adm'r of Mass. v. Feeney, 442 U.S. 256 (1979), and “similarly situated” requirements from Engquist v. Ore. Dep't of Agric., 553 U.S. 591 (2008).

4) Vindictive prosecution doctrine

• Bordenkircher v. Hayes, 434 U.S. 357 (1978), North Carolina v. Pearce, 395 U.S. 711 (1969), Blackledge v. Perry, 417 U.S. 21 (1974), Alabama v. Smith, 490 U.S. 794 (1989), and Goodwin: Provide the core framework: actual vindictiveness is hard to prove; in narrow contexts a presumption arises when there is a realistic likelihood of vindictiveness.
• Sixth Circuit applications include United States v. LaDeau, 734 F.3d 561 (6th Cir. 2013) (presumption applied after suppression “mortal blow”), United States v. Howell, 17 F.4th 673 (6th Cir. 2021) (articulating “stake” and “unreasonable” requirements), United States v. Andrew, 633 F.2d 449 (6th Cir. 1980) (en banc), United States v. Young, 847 F.3d 328 (6th Cir. 2017), and United States v. Zolicoffer, 570 F. App'x 540 (6th Cir. 2014) (presumption generally not applied in plea/trial negotiation contexts).
• United States v. Eddy, 737 F.2d 564 (6th Cir. 1984): Noted as a limited context where a presumption might arise (perjury after acquittal), but distinguished because Loines’s cases involved different conduct.
• Plain-error framing is supplied by United States v. Lear, 90 F.4th 519 (6th Cir. 2024).

5) “Finality” of a prior conviction under § 841(b)(1)

• United States v. Miller, 434 F.3d 820 (6th Cir. 2006), and United States v. Corona, 493 F. App'x 645 (6th Cir. 2012): Control the result. A conviction becomes “final” when the time to file a direct appeal expires, not when custody/supervision ends.
• Fed. R. App. P. 4(b) supplies the appeal deadline used to calculate finality (April 18, 2023 judgment → May 2, 2023 appeal deadline).

6) Career offender and Ohio drug trafficking

• United States v. Smith, 960 F.3d 883 (6th Cir. 2020): Forecloses Loines’s categorical challenge; Ohio Rev. Code § 2925.03(A)(2) “falls safely within” U.S.S.G. § 4B1.2(b).
• The panel reinforces Smith’s binding nature through subsequent Sixth Circuit decisions: United States v. Hoyle, 148 F.4th 396 (6th Cir. 2025), United States v. Johnson, 2023 WL 8651268 (6th Cir. Dec. 14, 2023), and United States v. Sharp, 2023 WL 3966739 (6th Cir. June 13, 2023).

B. Legal Reasoning

1) The court’s key move: assume potential constitutional error, then affirm on harmlessness

The opinion openly acknowledges the constitutional tension: the “serious drug felony” definition in 21 U.S.C. § 802(58) requires post-conviction facts (time served; release timing) that may fall outside the narrow Almendarez-Torres “fact of a prior conviction” exception, especially after Erlinger emphasized the exception’s narrowness. Instead of resolving that question, the panel uses Recuenco and Sixth Circuit ACCA harmless-error cases (Campbell, Thomas) to hold: even if a jury was required, the failure to use one did not prejudice Loines.

Importantly, the panel treats harmlessness as record-wide and pragmatic. It relies on: (i) presentence report statements, (ii) prison records, and (iii) Loines’s own admissions at the § 851 hearing, at sentencing, and in briefing. This method mirrors the Sixth Circuit’s “entire record” approach from the ACCA context.

2) Prosecutorial discretion: “fairness” arguments are not a substitute for constitutional standards

Loines urged a broad “fair and proper” review of the decision to seek a § 851 enhancement. The court declined, emphasizing that Congress expressly left the initiation of § 851 enhancements to prosecutorial choice, and that courts presume regularity absent traditional constitutional violations (e.g., selective prosecution under Armstrong) or statutory noncompliance (timely § 851(a)(1) notice).

The court also rejects an attempt to enforce DOJ internal guidance. The reasoning is structural: internal executive-branch policies may guide prosecutors but do not create enforceable entitlements in court.

3) Vindictive prosecution: no presumption where the “retaliation” theory spans unrelated cases

Loines argued the government sought the enhancement to punish him for having successfully appealed an earlier conviction (in United States v. Loines, 56 F.4th 1099 (6th Cir. 2023)). The panel does not find a “realistic likelihood of vindictiveness” under Blackledge/Goodwin because: (a) the current prosecution concerns new conduct, not the same case posture, and (b) Loines could not show the prosecutors had the required “stake” in deterring the earlier exercise of rights or that their action was “unreasonable” under Sixth Circuit tests (Howell and LaDeau).

4) Finality: appeal-expiration, not sentence-completion

The court’s analysis is straightforward: under Miller, “final” means the time for direct appeal has expired. Loines’s supervised release status did not matter. Because his appeal period ended in May 2023 and he admitted the conspiracy began “on or about August 25, 2023,” his prior conviction was final before the new crimes began.

5) Career offender: stare decisis over re-litigation

On the Guidelines issue, the panel is categorical: United States v. Smith already holds Ohio Rev. Code § 2925.03(A)(2) qualifies under U.S.S.G. § 4B1.2(b), and subsequent cases reaffirm that holding. With no meaningful distinction offered, the panel follows binding precedent.

C. Impact

• Operational rule for Sixth Circuit litigants: Even if there is an unresolved Sixth Amendment question about whether juries must find the “served > 12 months” and “release within 15 years” facts for a “serious drug felony,” defendants will face an uphill battle on appeal where those facts are undisputed or admitted; the court will likely affirm on harmless-error grounds.
• Record-development incentives: The opinion encourages litigants to contest (or stipulate) § 802(58) facts explicitly. Where defendants do not object to PSR facts and make admissions during colloquies, the appellate harmlessness analysis will be decisive.
• Constraining “policy” challenges to § 851 filings: The decision reinforces that DOJ internal guidance is not judicially enforceable, and that “fairness” arguments are not substitutes for selective-prosecution evidence or statutory-timing violations.
• Vindictive prosecution doctrine remains narrow: Attempts to presume vindictiveness based on a defendant’s exercise of rights in a separate, closed case are unlikely to succeed absent strong evidence of retaliatory motive.
• Finality clarity: The ruling reaffirms (and thereby stabilizes) the Sixth Circuit’s approach that finality for § 841(b)(1) turns on the appeal deadline, not completion of imprisonment or supervised release.
• Guidelines continuity: The career-offender holding continues the Sixth Circuit’s consistent treatment of Ohio Rev. Code § 2925.03(A)(2) as a controlled-substance offense, limiting future defendants to en banc or Supreme Court avenues.

IV. Complex Concepts Simplified

• “Serious drug felony” (21 U.S.C. § 802(58)): Not every drug conviction qualifies. Besides being a qualifying drug offense, the defendant must have served more than 12 months and must have been released within 15 years of the new offense’s start.
• § 851 information and hearing: The government must file a formal notice (“information”) stating it will rely on a specific prior conviction to enhance the sentence. If the defendant disputes it, the court holds a hearing to resolve the dispute.
• “Prior conviction exception”: A narrow doctrine allowing judges to find the existence of a prior conviction without a jury. The controversy arises when enhancements depend on facts beyond the conviction’s existence (like time served or dates of release).
• Harmless error: Even if the court made a constitutional mistake, an appellate court may affirm if the government shows beyond a reasonable doubt the error did not affect the outcome (e.g., because the key facts are undisputed and conclusively established).
• Selective vs. vindictive prosecution:
  • Selective prosecution targets discrimination (e.g., race) and requires strong proof that similarly situated people were treated differently for an improper reason.
  • Vindictive prosecution targets retaliation for exercising legal rights and is presumed only in narrow situations where retaliation is realistically likely.
• “Final” conviction: In this context, “final” means the direct appeal window has closed. It does not wait for the defendant to finish supervised release.
• Career offender (U.S.S.G. § 4B1.1): A Guidelines status that increases the advisory range when the defendant has two prior qualifying felonies (crimes of violence or controlled substance offenses).

V. Conclusion

United States v. Aaron Loines is less a definitive constitutional ruling on § 851 judge-found facts than a practical blueprint for how the Sixth Circuit will handle such challenges: by applying robust harmless-error review where the “serious drug felony” facts are uncontested and supported by reliable record evidence and admissions. The opinion also fortifies deference to prosecutorial discretion in § 851 decisions absent classic equal-protection or due-process violations, narrows the reach of vindictive prosecution claims across unrelated cases, and reaffirms that “finality” under § 841(b)(1) attaches when the time to appeal expires. On the Guidelines side, the court reiterates that United States v. Smith controls the treatment of Ohio Rev. Code § 2925.03(A)(2), preserving doctrinal stability in career-offender litigation.