Kevin McCarthy v. Hernandez
In brief
The Supreme Court overturned the Second Circuit's decision that had nullified Hernandez's New York jury verdict.
- Where it stands
- Decided
Decided 9-0 · June 22, 2026 · Opinion by Justice Curiam
- What it’s about
- The Court unanimously ruled for Superintendent McCarthy and reversed the Second Circuit’s decision overturning Pedro Hernandez’s New York conviction.
- Who it affects
- The decision reinforces limits on federal courts reviewing state convictions. It affects state prisoners, such as Hernandez, who seek federal habeas relief after a state trial.
Summary: written with AI from the case record.

What it's about
It held that federal habeas law did not allow the lower court to treat the trial judge’s response to a jury question as contrary to Missouri v. Seibert, because the Supreme Court had not clearly established that Seibert’s rule for suppressing confessions before trial applies to jury deliberations.
The case is part of the Court's broader effort to enforce AEDPA's narrow role for federal courts in reviewing state criminal cases.
Question presented
1. Whether the Second Circuit correctly held that the state trial court’s response to the jury’s note about the voluntariness of respondent’s asserted confessions—an issue respondent was entitled to put before the jury under New York law—was contrary to this Court’s decision in Missouri v. Seibert, 542 U.S. 600 (2004). 2. Whether the Second Circuit correctly determined that the error was not harmless under the two-step inquiry articulated in Brown v. Davenport, 596 U.S. 118 (2022).
What the Court decided
The vote
From the opinions
““AEDPA imposes strict limits on federal courts’ power to grant habeas relief to a prisoner convicted in state court.””
What's next
The Supreme Court has finished its action in the case. The lower courts will carry out the Court's decision.
Docket activity
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More questions
- What did the Supreme Court rule in McCarthy v. Hernandez?
- The Court summarily reversed the Second Circuit, which had set aside Hernandez's New York jury verdict. The Court emphasized AEDPA's strict limits on federal habeas relief.
- Who is affected by McCarthy v. Hernandez?
- State prisoners seeking federal review of their convictions may face a higher barrier under AEDPA. Federal courts must apply AEDPA's limits when considering such challenges.
- What happens next in McCarthy v. Hernandez?
- The Supreme Court has completed its action. Lower courts will implement the decision reversing the Second Circuit.
Sources
Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.