Three labor unions representing teachers employed by the Department of Defense Education Activity (DoDEA) filed suit to challenge President Trump's Executive Order 14251, which revoked collective bargaining rights for the majority of federal workers, including DoDEA teachers, and the Office of Personnel Management's implementing guidance. Plaintiffs contend the Executive Order and its implementation unlawfully stripped employees of statutory rights by ending union recognition, cancelling collective bargaining agreements, revoking dues deductions, denying official time and grievance procedures, and barring union representation in disciplinary meetings. The plaintiffs argue that these actions violate the separation of powers, the First Amendment's protection against retaliation and viewpoint discrimination, the Fifth Amendment's protection against retroactively abrogating contracts and depriving employees of protected property interests, the Fifth Amendment's guarantee of equal protection and due process, and the Administrative Procedure Act.