Whether the Supreme Court had jurisdiction when Caldwell had not initially assigned the prosecutor's comments as error in his state appeal.
Holding
Yes. The Mississippi Supreme Court did not clearly and expressly rest its judgment on an adequate and independent state procedural ground.
Reasoning
A possible state procedural default does not defeat Supreme Court jurisdiction unless the state court actually relied on that default as an independent ground for its judgment. Under Michigan v. Long, the Court will not presume an independent state ground where the state decision appears to rest on, or is interwoven with, federal law and any state-law basis is unclear.
Mississippi's court raised the prosecutor's argument on its own initiative, received argument and postargument briefs on it, and decided it at length under both federal and state law. Its reference to prior cases did not clearly establish procedural waiver as a separate basis for decision; instead, its reliance on an analogous capital case indicated that it had reached the merits. The Supreme Court therefore had jurisdiction to review the federal claim.