United States v. Jackson

(1) Whether a person who becomes the first assistant after a vacancy arises is ineligible to be the acting officer under Section 3345(a)(1) of the Federal Vacancies Reform Act of 1998; and (2) Whether Section 3347(a) prohibits a person who is not an acting officer under Section 3345(a) from being delegated all of the duties of a vacant office that may be delegated to others and that are not exclusive to the vacant office.