Two recent opinions involved the enforcement of statutes that the Court saw as prohibiting the filing of the action–In re: Academy, No. 19-0497 (June 25, 2021), in which a federal statute said that the specified kinds of cases about firearms sales “may not be brought in any Federal or State court,” and In re: Facebook, No. 20-0434 (June 25, 2021), about the Communications Decency Act’s command that “[n]o cause of action may be brought” about the subject matters of that Act. Both were enforced by petitions for writ of mandamus, based on the principle that “requiring [Defendant] to ‘proceed to trial–regardless of the outcome–would defeat the substantive right’ granted by” those statutes.