“…Presidents' Chiefs of Staff are primarily tasked with three core functions: administration, advisement, and guardianship of the executive office (Cohen 2002;Walcott, Warshaw, and Wayne 2001). They act as central authority figures, managers, directors, advisers, and spokespeople, often serving as the president's right hand (Walcott, Warshaw, and Wayne 2001;Pickering, Bellens, and Brans 2023). This varied role is essential for ensuring the effective functioning of the executive office.…”