Last fall the Supreme Court heard oral arguments in Moore v. Harper, the North Carolina case about the "Independent State Legislature Doctrine," which I've written about here. On February 3, however, the North Carolina Supreme Court took the unusual step of granting a petition for rehearing that may cause the state court to reconsider the merits determination that the U.S. Supreme Court is currently reviewing. And yesterday (March 2) the U.S. Supreme Court asked for supplemental briefing about whether that rehearing order renders the decision below non-final, depriving the U.S. Supreme Court of jurisdiction.
Derek Muller has lots more discussion and helpful analysis.
I don't have a strong view about the finality question the Court asked about, but I have been puzzled by a prior, related jurisdictional question. Did the North Carolina state courts have jurisdiction to grant rehearing on the merits?
