Unreported / Non-Citable
Background
Leoncio Mendoza-Vargas pleaded guilty to possession with intent to distribute fentanyl after a traffic stop uncovered five vacuum-sealed bundles containing 10.017 kilograms of fentanyl in his rental vehicle. He admitted that a man named Javier had recruited him to transport drugs from Phoenix toward the Dallas-Fort Worth area and had communicated with him throughout the trip.
Using the 2024 Sentencing Guidelines, the presentence report calculated a total offense level of 31 and a criminal-history category of IV, producing a range of 151 to 188 months. Mendoza-Vargas did not object to the calculations or request a mitigating-role reduction. The district court imposed 175 months in prison and three years of supervised release, emphasizing the quantity and dangerousness of the fentanyl, Mendoza-Vargas’s prior convictions, and the need to protect the public. It also stated that it would impose the same sentence regardless of any Guidelines-calculation error.
The Court’s Holding
The Fifth Circuit affirmed under plain-error review. Mendoza-Vargas argued for the first time on appeal that Amendment 833, effective after his sentencing, should apply retroactively as a clarifying amendment and generally entitle him, as a courier, to a mitigating-role reduction under U.S.S.G. § 3B1.2 and a corresponding decrease under § 2D1.1(a)(5).
The court concluded that three of the four relevant factors suggested Amendment 833 was substantive rather than clarifying: the Sentencing Commission did not expressly label it clarifying, it changed the Guideline’s text, and it was not listed as retroactive in § 1B1.10(d). Even assuming the amendment was clarifying and potentially applicable, the district court committed no clear or obvious error because the retroactivity question was reasonably disputed and no controlling authority supported Mendoza-Vargas’s position.
The court also noted that Mendoza-Vargas could not show an effect on his substantial rights. The sentencing judge expressly said the same 175-month sentence would have been imposed despite any Guidelines error because of the offense’s extreme aggravating circumstances.
Key Takeaways
- Amendment 833 likely represents a substantive change to the Sentencing Guidelines rather than a clarification, according to the Fifth Circuit’s application of its established factors.
- An unresolved retroactivity question, unsupported by controlling authority, ordinarily cannot establish clear or obvious error on plain-error review.
- A district court’s unequivocal statement that it would impose the same sentence regardless of a Guidelines error can prevent a defendant from showing that the alleged error affected substantial rights.
Why It Matters
The decision limits the ability of defendants sentenced before Amendment 833’s effective date to invoke its more favorable treatment of low-level drug-trafficking functions for the first time on appeal. The panel did not definitively decide that Amendment 833 can never apply retroactively; it held that any failure to apply it here was not plain error.
The opinion also underscores the importance of preserving mitigating-role arguments at sentencing and shows how an adequately explained alternative sentence can independently defeat relief under plain-error review.