Kernan v. Hinojosa
The Supreme Court summarily reversed the Ninth Circuit, ruling that the California Supreme Court's unexplained denial of a prisoner's habeas petition counted as a decision on the merits, not merely a repeat of a lower court's venue-based dismissal.
Because the denial was on the merits, federal habeas law required judges to defer to the state court's decision rather than review the prisoner's constitutional claim from scratch, so the Ninth Circuit's grant of habeas relief could not stand.
“Containing no statement to the contrary, the Supreme Court of California’s summary denial of Hinojosa’s petition was therefore on the merits.”
The Court's core holding that the unexplained state denial counted as a merits decision.
How it got here: A California Superior Court dismissed Hinojosa's habeas petition for improper venue; the California Supreme Court later denied a habeas petition without explanation; a federal district court denied relief under AEDPA deference, but the Ninth Circuit reversed, prompting this appeal.
The Case in Depth
What happened
Antonio Hinojosa was serving a 16-year prison sentence when California prison officials labeled him a prison-gang associate and placed him in a secured housing unit, which later cost him the ability to earn good-time credits under a 2010 law change. He argued the law's application to him violated the Constitution's ban on ex post facto laws, and pursued habeas relief through California's courts and then the federal courts.
The question before the Court
When a California court's unexplained denial of a habeas petition follows an earlier ruling that the prisoner filed in the wrong county, must federal courts treat that denial as a ruling on the merits?
Why it matters
The ruling reinforces that federal courts must generally give state courts the benefit of the doubt when a later state-court order is silent, even after an earlier lower-court ruling was purely procedural. This makes it harder for state prisoners to get federal habeas relief reviewed without the deferential standard, since courts will more often assume state supreme courts reached the merits.
What changes now
The Ninth Circuit's judgment granting Hinojosa habeas relief is undone. Because the Ninth Circuit had already indicated that under deferential review it would be bound by its own precedent to affirm the denial of his claim, this summary reversal effectively forecloses his path to federal habeas relief on the ex post facto issue, absent further proceedings the opinion does not describe.
What this does not decide
The Court expressly said it was not deciding whether Hinojosa's underlying ex post facto claim has merit, only that it must be reviewed under AEDPA's deferential standard rather than considered fresh by federal courts.
Concurrences and dissents
Dissent — Justice Sotomayor
“It is mindboggling how one opinion necessarily disagrees with another opinion merely because it omits language that the other opinion also lacks.”Sotomayor's objection to the majority's reasoning about the missing phrase 'without prejudice.'
Justice Sotomayor argued the majority's reasons for rejecting the look-through presumption were weak. She said the California Supreme Court could easily have agreed with the Superior Court's conclusion that Hinojosa filed his first petition in the wrong county, especially since California treats an original habeas petition to its Supreme Court as the normal method of appeal. She would have upheld the Ninth Circuit's view that the state courts' denials were not on the merits and that Hinojosa's incarceration had been unconstitutionally extended.
How the Court got there
The legal reasoning, step by step
- The Court applied the 'look-through' presumption from Ylst v. Nunnemaker, under which a later unexplained state-court denial is presumed to rest on the same ground as the last reasoned decision below, unless strong evidence rebuts that presumption.
- The Court found strong evidence rebutting the presumption here: the earlier ruling had dismissed the petition for being filed in the wrong county, but there is only one California Supreme Court, so improper venue could not possibly explain that court's own denial.
- Because the look-through approach could not apply, the Court treated the California Supreme Court's silent denial as a decision on the merits of Hinojosa's constitutional claim under Harrington v. Richter, which holds that a summary denial with no stated procedural ground is presumed to be on the merits.
- Since the denial was on the merits, the federal habeas statute's deferential review standard applied, meaning federal courts could not grant relief unless the state decision was contrary to clearly established federal law or based on an unreasonable determination of facts.
- Applying that deferential standard, the Court noted the Ninth Circuit itself had already held that denials of identical ex post facto claims are not contrary to clearly established federal law, so deferential review required rejecting Hinojosa's claim.
Doctrinal impact
Cases affected by this decision
Distinguishes Ylst v. Nunnemaker (501 U. S. 797)
The Court said this case's look-through presumption did not apply because strong evidence rebutted it here.
Reaffirms Harrington v. Richter (562 U. S. 86)
The Court relied on this case's rule that unexplained denials are presumed to be decisions on the merits.