SCOTUS Slams the Door on First Step Act Sentence Reductions, Invalidating Sentencing Commission Policy

The End of the "Sentencing Disparity" Argument for Compassionate Release

The Supreme Court has effectively slammed the door on one of the most vital avenues for federal sentencing relief. In a 6–3 decision handed down on May 28, 2026, the Court ruled that federal judges may not grant compassionate release under the First Step Act simply because a defendant would receive a substantially shorter sentence if convicted today.

By stripping away this mechanism, the conservative majority did not just rule against the two Pennsylvania defendants at the heart of the case—they directly invalidated a key 2023 policy adopted by the United States Sentencing Commission. For federal defense practitioners, this decision fundamentally rewrites the playbook for motions brought under 18 U.S.C. § 3582(c)(1)(A) and signals a harsh return to the rigid sentencing regimes of the past.

The Legal Context: The First Step Act and U.S.S.G. § 1B1.13

Before 2018, compassionate release was a phantom remedy. Under the old regime, only the Director of the Bureau of Prisons (BOP) could file a motion to reduce a sentence. The BOP rarely did. The First Step Act of 2018, Pub. L. No. 115-391, § 603(b), 132 Stat. 5194, 5239, altered the landscape by allowing defendants to file motions directly with the district court after exhausting their administrative remedies.

The statute requires a court to find "extraordinary and compelling reasons" to warrant a sentence reduction. Recognizing the severe disparities created by outdated, draconian mandatory minimums—particularly those involving stacked firearm offenses and drug weights—the Sentencing Commission amended the federal sentencing guidelines in 2023. Specifically, the Commission broadened U.S.S.G. § 1B1.13 to explicitly allow judges to consider non-retroactive changes in the law as an "extraordinary and compelling" reason, provided the defendant had served at least 10 years of an "unusually long sentence."

The Court’s Rationale: Finality Over Fairness

The Court's May 28 ruling violently dismantles that 2023 amendment. Relying on a rigid textualist framework, the 6–3 majority concluded that if Congress wanted a sentencing reform to apply retroactively, it would have explicitly drafted the statute to say so.

The Court reasoned that using the compassionate release vehicle to retroactively apply new, more lenient sentencing frameworks operates as an impermissible backdoor, violating clear legislative intent and undermining the finality of criminal judgments.

This is a profoundly disappointing, if unsurprising, exercise in judicial gatekeeping. The First Step Act was explicitly designed to be remedial. By rejecting the Sentencing Commission’s considered policy, the Court is ignoring the plain reality of federal prisons: thousands of inmates are serving decades-long sentences that Congress itself has since deemed unjust. The Court’s logic suggests that Congressional silence on retroactivity is a mandate for perpetual punishment, rather than a gap meant to be filled by judicial discretion and the Sentencing Commission’s subject-matter expertise.

What This Means for Federal Practice

For the defense bar, the practice implications are immediate and severe. If you have a § 3582(c)(1)(A) motion pending that relies primarily on the disparity between a client's current sentence and what they would receive under today's laws, that motion is now fatally flawed.

Defense attorneys must immediately audit their compassionate release dockets and pivot their advocacy strategies. You can no longer rely on the sheer mathematical injustice of an outdated mandatory minimum. Instead, practitioners must refocus heavily on the traditional, strictly construed pillars of compassionate release:

• Medical Conditions: Documenting terminal illnesses or debilitating physical/mental conditions that the BOP cannot adequately treat.
• Age-Related Deterioration: Proving advanced age coupled with a severe deterioration in physical or mental health after serving a substantial portion of the sentence.
• Family Circumstances: Evidentiary showings regarding the death or incapacitation of the caregiver of the defendant’s minor child, or the incapacitation of the defendant's spouse.

A Broader Trend of Restricting Relief

This ruling does not exist in a vacuum; it is part of a broader 2026 Supreme Court trend systematically narrowing avenues for post-conviction relief. Just weeks later, on June 22, 2026, the Court handed down another 6–3 decision in the infamous Etan Patz murder case. There, the Court reversed the Second Circuit, strictly interpreting the Antiterrorism and Effective Death Penalty Act of 1996 (AEDPA), 28 U.S.C. § 2254(d), to rule that the appellate court exceeded the limits of federal habeas review when it overturned a state conviction based on a jury-instruction error.

Taken together, the message from the Supreme Court is clear: the doors to federal post-conviction relief are closing. Whether dealing with federal inmates seeking a second chance under the First Step Act or state prisoners petitioning for habeas corpus, the conservative majority is forcefully prioritizing the finality of convictions over the correction of disparate or flawed sentences. Federal practitioners must adapt to this hostile environment immediately, ensuring that every motion is grounded in irrefutable, deeply individualized factual records rather than broad appeals to systemic sentencing inequities.