No. 24-1063October Term 2025Decided Jun 18, 2026
Munson P. Hunter, III, Petitioner v. United States
Appeal waivers usually matter, but they do not automatically block every appeal when enforcing them would cause a miscarriage of justice.
Case status
- Current stage
- Decided
- Latest event
- Decision released Jun 18, 2026
- What it's about
The Court considered whether a defendant who agreed not to appeal his sentence as part of a plea deal could still challenge a supervised-release condition requiring him to take prescribed mental-health medication. The Court held that appeal waivers are not absolute and may be refused when enforcing them would create a miscarriage of justice, then sent Hunter’s case back for that standard to be applied.
Question presented
1. Does an appeal waiver bar all claims except for ineffective assistance of counsel or a sentence exceeding the statutory maximum? 2. Does such a waiver become ineffective if the sentencing judge later tells the defendant they can appeal, and the government fails to object?
- Case path
United States Court of Appeals for the Fifth Circuit / Decision released Jun 18, 2026
- Area
Criminal Procedure
Briefing
What it's about
The case asked whether a defendant who waived most appeal rights in a plea deal could still challenge a supervised-release condition requiring prescribed mental-health medication. The Supreme Court said appeal waivers are not absolute and can be refused when enforcing them would create a miscarriage of justice, then sent Hunter's case back for that test to be applied.
Vote
Impact
This gives lower courts room to hear some appeals even after a plea agreement waiver, especially when a sentence condition seems unusually unfair. For example, a defendant challenging a serious supervised-release rule may still get review if enforcing the waiver would be unjust.
What's next
The Fifth Circuit must reconsider Hunter's appeal using the miscarriage-of-justice standard the Supreme Court announced. Lower courts will also have to decide, case by case, when enforcing an appeal waiver would be too unfair.
What was the main fight in Hunter v. United States?
The dispute was whether Hunter's plea-deal waiver blocked his challenge to a supervised-release condition requiring prescribed mental-health medication. The Court said such waivers are not absolute.
Who is most affected by this ruling in real life?
Defendants who signed plea deals with appeal waivers may benefit when a sentence condition appears especially unfair. Judges and prosecutors must also account for this new limit.
What happens next in Hunter's own case?
The Supreme Court sent the case back to the Fifth Circuit. That court must decide whether enforcing Hunter's waiver here would create a miscarriage of justice.
Decision
What the Court decided
Appeal waivers usually matter, but they do not automatically block every appeal when enforcing them would cause a miscarriage of justice.
Impact
Federal defendants who signed an appeal waiver (a promise not to challenge a future sentence) are affected. Their waiver is not absolute. For example, Hunter may still challenge a supervised-release medication requirement if enforcing the waiver would cause a miscarriage of justice. Next, lower courts must decide whether a claimed sentencing error is obvious and extreme enough. Hunter's case returns to the Fifth Circuit to apply that standard.
Not official Court text.
Vote
- Vote split
- 8-1
- Majority author
- Elena Kagan
Other opinions
Concurring
- Neil Gorsuch(author)
- Brett M. Kavanaugh(author)
Dissenting
- Clarence Thomas(author)
Opinion documents
Timing
Decided June 18, 2026
The Court released its decision 107 days after oral argument on March 3, 2026. The median for cases argued in March is 83 days.
Related cases




Grounding
- Grounding
- Primary materials plus reporting.
- Note
- Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
- Checked
- Jul 2, 2026
- Method
- Methodology
Primary materials10
Supreme Court docket 24-1063
docket | Jul 23, 2026
Primary case document
Supreme Court document | Jul 23, 2026
Opinion of the Court - EK
opinion | Jun 18, 2026
Questions Presented
brief | Mar 8, 2026
Oral Arguments - Hunter
audio | Mar 3, 2026
Petition
brief | Apr 4, 2025
SupremeCourt.gov
official | Jul 2, 2026
SupremeCourt.gov
official | Jul 2, 2026
SupremeCourt.gov
official | Jul 2, 2026
SupremeCourt.gov
official | Jul 2, 2026