Diego Santilli was sworn in as Argentina’s Jefe de Gabinete, or Chief of Cabinet, on June 30, 2026 [1, 2].
The appointment marks a significant transition in President Javier Milei's administration as it seeks to stabilize its executive leadership. Santilli takes over the role following the resignation of the previous minister, Manuel Adorni [1, 5].
The ceremony took place at 5:30 p.m. in the Salón Blanco, the White Hall of the Casa Rosada [2, 3]. President Milei presided over the oath, with the outgoing minister Adorni also in attendance [1, 5].
According to reports, the event served as a demonstration of political support for the administration. Between 13 and 14 provincial governors attended the ceremony to signal their backing of the new appointment [1, 4].
Santilli becomes the fourth person to hold the position of Chief of Cabinet under the current presidency [3]. The role is central to coordinating government policy, and managing the relationship between the executive branch and the legislature.
The presence of a large delegation of governors suggests an effort by the Milei administration to strengthen ties with provincial leaders—a critical necessity for passing legislative agendas through a divided congress.
“Diego Santilli was sworn in as Argentina’s Jefe de Gabinete”
The appointment of Diego Santilli and the attendance of up to 14 governors indicate a strategic move by President Milei to broaden his political coalition. By installing a figure with significant provincial ties, the administration aims to reduce friction with regional governments and secure the political capital necessary to implement its economic and social reforms.
