Whether the court of appeals' judgment should be vacated and remanded as moot

QUESTION PRESENTED In 2021, the President issued an executive order requiring employees of the Executive Branch to be vaccinated against COVID-19 as a condition of their employment, subject to religious and medical exemptions. In the decision below, the en bane Fifth Circuit held that respondents could challenge that requirement in district court notwithstanding the provisions of the Civil Service Reform Act of 1978, Pub. L. No. 95-454, 92 Stat. 1, channeling federal employees’ challenges to adverse personnel actions to the Merit Systems Protection Board, subject to review by the Federal Circuit. The Fifth Circuit also affirmed a preliminary injunction forbidding the government from enforcing the vaccination requirement against any federal employee nationwide. Roughly six weeks after the Fifth Circuit issued its decision, the President revoked the executive order at issue in this case as part of a broader wind-down of COVID-19 emergency policies based on changed publichealth conditions. The question presented is as follows: Whether, pursuant to United States v. Munsingwear, Inc., 340 U.S. 36 (1950), this Court should vacate the court of appeals’ judgment and remand with instructions to direct the district court to vacate its order granting a preliminary injunction as moot. (I)