Swarthout v. Cooke
The Supreme Court ruled that federal courts had no business second-guessing whether California parole boards and state courts correctly applied California's own "some evidence" standard for denying parole to two prisoners.
Because federal habeas relief only covers violations of federal law, and the only federal right involved was a right to minimal fair procedures already satisfied here, the Ninth Circuit was wrong to dig into whether the state got the evidence right.
How it got here: State courts denied both prisoners' habeas petitions; federal district courts split, but the Ninth Circuit ruled for both prisoners, prompting California to seek Supreme Court review.
The Case in Depth
What happened
Damon Cooke and Elijah Clay were both California prisoners serving indeterminate life sentences with the possibility of parole. Parole boards (and, for Clay, the Governor) denied them parole based on factors like the severity of their crimes, disciplinary history, and future risk. Both argued in state and then federal habeas proceedings that there was no real evidence supporting the denial under California's "some evidence" rule.
The question before the Court
Could federal courts grant habeas relief to California prisoners because state courts misapplied California's own "some evidence" rule for denying parole?
Why it matters
This ruling limits federal courts' power to review state parole denials, meaning California prisoners denied parole can no longer get a federal court to reexamine whether the state's own evidentiary standard was correctly applied. Prisoners are left with only minimal procedural protections — notice and a chance to be heard — rather than federal review of the substance of parole decisions.
What changes now
The judgments in favor of Cooke and Clay are reversed, meaning the Ninth Circuit's orders requiring new parole consideration are undone. The case does not require further proceedings on the federal due process question, since the Court held no federal right was violated. Any remaining disputes about whether California's own 'some evidence' rule was correctly applied must be resolved in California's own courts, not federal habeas courts.
What this does not decide
The Court did not decide whether California law actually creates a liberty interest in parole — it assumed this without ruling on it. It also did not decide whether the state courts correctly applied California's "some evidence" rule, since that question is a matter of state law beyond federal habeas review.
Concurrences and dissents
Concurrence — Justice Ginsburg
Justice Ginsburg agreed with the summary reversal but noted the outcome depends on the Ninth Circuit's own precedent treating Greenholtz, not Hill, as controlling for California parole. She observed that if California law entitled prisoners to parole upon meeting specific criteria, the good-time-credits case Hill might apply instead, but since the Ninth Circuit had already decided Greenholtz governs, she agreed the summary disposition was proper.
How the Court got there
The legal reasoning, step by step
- The Court explained that federal habeas relief is only available for violations of federal constitutional or statutory rights, not for mere errors of state law — so if the Ninth Circuit was just policing California's own 'some evidence' rule, that was out of bounds.
- Turning to due process, the Court applied its standard two-step framework: first ask whether a liberty interest exists, then ask whether the procedures used to protect it were constitutionally adequate.
- The Court accepted, without deciding, that California parole law creates a liberty interest in parole, but stressed that such an interest is created by state law, not the federal Constitution — the Constitution does not require states to offer parole at all.
- Relying on Greenholtz v. Inmates of Nebraska Penal and Correctional Complex, the Court held that when a state does create a parole liberty interest, due process requires only minimal procedures: an opportunity to be heard and a statement of reasons for denial.
- Because both prisoners were allowed to speak at their hearings, contest evidence, access their records, and were told why parole was denied, they had already received all the process the Constitution demands.
- The Court concluded that treating California's 'some evidence' rule as part of the federally protected liberty interest would improperly convert every state procedural rule into a matter for federal merits review, which is not the law.
Doctrinal impact
Cases affected by this decision
Reaffirms Greenholtz v. Inmates of Neb. Penal and Correctional Complex (442 U.S. 1)
Reaffirmed as controlling precedent setting the minimal due process procedures required for parole decisions.
Distinguishes Superintendent, Mass. Correctional Institution at Walpole v. Hill (472 U.S. 445)
Distinguished because California's parole system is not equivalent to the good-time-credits scheme Hill addressed.
Distinguishes In re Rosenkrantz (29 Cal. 4th 616)
Distinguished as not equating California's parole system with good-time credits or resolving federal due process questions.