Skip to main content

Federal review of state prisoner claims

Kernan v. Hinojosa

Updated Oct 18, 2026

In brief

The Supreme Court overturned the Ninth Circuit’s judgment; the record does not state the next step for Hinojosa’s custody challenge.

Where it stands
Decided

Decided · May 16, 2016 · Per curiam

What it’s about
Antonio Hinojosa challenged California’s denial of his request to contest his custody, raising whether federal courts must give special weight under the Antiterrorism and Effective Death Penalty Act (AEDPA) when a state court denies a claim without deciding its substance.
Who it affects
The Ninth Circuit’s judgment in Hinojosa’s federal case was overturned.

Summary: written with AI from the case record.

Illustration for Scott Kernan, Secretary, California Department of Corrections and Rehabilitation v. Antonio A. Hinojosa
Conceptual illustration · AI-generated

What it's about

The Supreme Court overturned the Ninth Circuit’s judgment; Justices Sotomayor and Ginsburg disagreed, arguing that California’s unexplained denial should be presumed to follow an earlier ruling that Hinojosa filed in the wrong county.

Justice Sotomayor wrote that the parties agreed a California Superior Court had rejected Hinojosa’s petition because he filed it in the wrong county; the California Supreme Court later denied it without explanation.

The dispute concerns how federal courts review a state court’s denial of a prisoner’s claim when the state court did not decide its substance.

Question presented

Does the Antiterrorism and Effective Death Penalty Act’s deferential standard of review of state habeas decisions apply when the decision to deny habeas in state court was not made on the merits of the case?

What the Court decided

Holding

The petition for a writ of certiorari and Hinojosa’s motion for leave to proceed in forma pauperis are granted, and the judgment of the Court of Appeals for the Ninth Circuit is reversed.

Result
Reversed

The vote

Majority author
Per Curiam
Dissenting
Ruth Bader Ginsburg, Sonia Sotomayor

From the opinions

“We should therefore presume that the California Supreme Court denied Antonio Hinojosa’s habeas petition because he filed the first one in the wrong county.”

— Justice Sotomayor(dissent)

What's next

The Supreme Court has finished its work on this case. The next step for the lower courts is not stated.

Documents

1

Docket activity

6
  • New analysis added

    Oct 18, 2026 · Court records

  • AI analysis generated: Case Briefing

    Oct 18, 2026 · Generated

  • AI analysis generated: Decision Record

    Oct 18, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Oct 18, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Oct 17, 2026 · Court records

Show 1 more
  • Opinion added: Kernan

    May 16, 2016 · Court records

More questions

1
What did Justices Sotomayor and Ginsburg say?
They argued that the California Supreme Court’s unexplained denial should be treated as following the earlier ruling that Hinojosa filed in the wrong county.

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.

Checked Oct 18, 2026Methodology

Court records and filings

Reporting and analysis