Complex sentence: The issue of the probate exception reached the U.S. Supreme Court, which ruled in favor of Smith ("Marshall v. Marshall") and remanded to the Ninth Circuit Court of Appeals to adjudicate issues not previously reached.
Split into simpler sentences: The issue of the probate exception reached the U.S. Supreme Court, which ruled in favor of Smith ("Marshall v. Marshall"). The federal case has been remanded to the Ninth Circuit Court of Appeals to adjudicate appellate issues not previously reached.