The Supreme Court Just Cracked Open the Appeal Waiver: What Hunter v. United States Means for Federal Plea Deals

If you pleaded guilty in federal court and signed an appeal waiver, you were probably told the sentence was final. As of June 18, 2026, that is no longer the whole story. In Hunter v. United States, the Supreme Court held that an appeal waiver cannot be enforced when doing so would produce a miscarriage of justice. The waiver still binds in the ordinary case. But an egregious sentencing error is now reviewable even when the defendant gave up the right to appeal.

Key Takeaways

• In Hunter v. United States (June 18, 2026), the Supreme Court held that a plea-agreement appeal waiver is unenforceable when enforcing it would produce a miscarriage of justice.
• The decision interprets appeal waivers entered under Federal Rule of Criminal Procedure 11 and the right to appeal a sentence under 18 U.S.C. 3742.
• The miscarriage-of-justice standard is narrow: it reaches egregious errors that would bring the judicial system into disrepute, not ordinary sentencing disagreements.
• For defendants in the Southern and Middle Districts of Florida who signed broad waivers, Hunter creates a limited but real path to challenge an egregious sentence.
• Most federal plea agreements include an appeal waiver, so this ruling matters to nearly every federal defendant who pleaded guilty and was sentenced.

The appeal waiver was supposed to close the courtroom door. Hunter v. United States cracked it open — but the standard is narrow and the 14-day window to act does not wait.

What the Court Actually Held

On June 18, 2026, the Supreme Court decided Hunter v. United States and changed how far a federal appeal waiver can reach. Justice Kagan wrote for the Court. The holding is straightforward to state and consequential in practice: an agreement not to appeal a sentence is unenforceable when enforcing it would result in a miscarriage of justice — meaning when it would leave in place an egregious error that brings the judicial system into disrepute.

The petitioner had been charged with multiple counts of bank and wire fraud and resolved the case by pleading guilty to a single count of aiding and abetting wire fraud under 18 U.S.C. 1343 and 18 U.S.C. 2. In exchange, the government dismissed the remaining counts. The written plea agreement contained a broad appeal waiver, with a carve-out only for ineffective assistance of counsel. The Court vacated the Fifth Circuit's judgment and sent the case back to be evaluated under the new miscarriage-of-justice standard.

Why This Matters to Almost Every Federal Defendant

Appeal waivers are not a footnote in federal plea practice. They are standard. The vast majority of federal cases end in a guilty plea, and the vast majority of those plea agreements ask the defendant to give up the right to appeal the conviction and the sentence. Prosecutors include the waiver because it ends the case with finality. Defendants sign it because the plea deal in front of them is usually better than the trial exposure behind it.

Before Hunter, courts enforced those waivers aggressively. A defendant who signed a knowing and voluntary waiver was generally stuck with whatever sentence followed, short of a narrow set of recognized exceptions that varied by circuit. Hunter sets a national floor. Now every circuit must recognize that a waiver gives way when the resulting error is egregious enough to discredit the courts. That is a meaningful shift for federal defendants who felt the courtroom door had already closed.

The Standard Is Narrow, and That Matters

This is messier than the headlines suggest. The miscarriage-of-justice standard is not an invitation to relitigate every sentencing decision. The Court framed it around egregious error — the kind that undermines confidence in the judicial system itself. A sentence imposed above the statutory maximum, a sentence resting on a constitutionally impermissible factor, or a sentence that violates the plain terms of the law are the kinds of errors that can clear the bar. A guideline dispute that reasonable judges could decide either way will not.

The right to appeal a federal sentence is governed by 18 U.S.C. 3742, and the plea itself is governed by Federal Rule of Criminal Procedure 11. Hunter does not rewrite either one. It adds a backstop. The practical question in any given case is whether the error is serious enough to fit through a narrow opening. Answering that question is legal work, and it has to be done fast and done carefully.

The Mistakes That Close the Door

The most damaging mistakes happen in the first two weeks after sentencing. A federal defendant generally has 14 days from entry of judgment to file a notice of appeal. Miss that deadline and the strongest Hunter argument in the country is worth nothing. Defendants who assume the appeal waiver ended everything often let the clock run without ever asking whether their sentence contained the kind of error Hunter now reaches.

The second mistake is treating a direct appeal and a later motion as interchangeable. They are not. Collateral relief under 28 U.S.C. 2255 covers ineffective assistance and certain other claims, and it survived most waivers even before Hunter. A direct appeal under the new standard is a different vehicle with a different deadline and different rules. Choosing the wrong path — or trying to preserve both without a plan — can forfeit relief that was actually available.

The third mistake is going it alone. Reading an appeal waiver and concluding that nothing can be done is exactly the assumption Hunter unsettles. Whether a sentence contains an egregious error is not obvious from the judgment. It takes review of the plea colloquy, the guideline calculation, the statutory maximums, and the sentencing transcript.

How a Defense Lawyer Uses Hunter

The work starts with the sentence and the record, not the headline. A federal criminal defense attorney evaluating a Hunter argument pulls the plea agreement, the plea colloquy, the presentence report, and the sentencing transcript, then asks a concrete question: is there an error here that is egregious enough to make enforcing the waiver a miscarriage of justice?

If the answer is yes, the notice of appeal has to be filed inside the 14-day window while the argument is developed. If the answer is no, that is worth knowing too, because it redirects the strategy toward collateral review under 28 U.S.C. 2255 or toward other post-conviction options.

White collar defense attorney work and federal investigation defense do not end at sentencing. Hunter is a reminder that the post-judgment phase has live strategic choices, and that the right move depends on the specific error, the specific waiver, and the specific deadline. For defendants sentenced in the Southern and Middle Districts of Florida, where federal fraud prosecutions move quickly through guilty pleas, that assessment should happen the moment a sentence looks wrong.

Why Timing Controls the Outcome

Everything about a Hunter argument is time-sensitive. The 14-day notice-of-appeal deadline is the hard edge, but the real work begins before that. The error has to be identified, the record has to support it, and the filing has to be made while the case is still on direct appeal rather than buried in a later collateral motion. A defendant who waits to see what happens loses the very window the decision opened.

Federal sentencing is not the end of the story it used to be for defendants who signed appeal waivers. Hunter v. United States narrows the gap between a bad plea outcome and a reviewable one. The opening is small and the standard is demanding, but for the right case it is the difference between an unreviewable sentence and a second look.

Common Questions

Facing a Federal Sentence in Florida After a Guilty Plea?

AMC Defense Law represents clients in federal investigations, prosecutions, and appeals in Florida and nationwide. If you signed an appeal waiver and believe your sentence rests on a serious error, the time to have it reviewed is now, while the appeal window is open. Consultations are confidential. Contact us to discuss your case.