The current procedure is that a party in a case may apply to the Supreme Court to review a ruling of the circuit court. This is called petitioning for a writ of certiorari, and the Supreme Court may choose, in its sole discretion, to review any lower court ruling. In extremely rare cases, the Supreme Court may grant the writ of certiorari before the judgment is rendered by the court of appeals, thereby reviewing the lower court's ruling directly. Certiorari before judgment was granted in the Watergate scandal-related case, "United States v. Nixon", and in the 2005 decision involving the Federal Sentencing Guidelines, "United States v. Booker".