The inauguration of Mauricio Macri as president of Argentina took place on December 10, 2015. It followed a rocky presidential transition and a dispute over ceremonial protocol between outgoing president Cristina Fernández de Kirchner and president-elect Mauricio Macri.
Macri was elected president in the 2015 general elections, defeating Kirchnerist candidate Daniel Scioli. He met President Kirchner at the Quinta de Olivos a few days later. The meeting was focused on discussing the oath of office ceremony. In a part of that ceremony, the outgoing president hands the presidential sash and staff to the new president, as symbols of his presidential authority. Macri said that the meeting was pointless.
A few days later, it was announced that the whole ceremony would take place in the Argentine Congress, arguing that the Argentine Constitution orders that the oath of office must take place there. Macri agreed to make the oath of office in the Congress, but thought that he should then move to the Casa Rosada across the Avenida de Mayo and receive the sash and staff from Cristina at the White Hall, as was traditionally done. He argued that this was called for by presidential protocol. Kirchner allegedly wanted to fill the auditorium of the Congress with her sympathizers, who would jeer at Macri during the ceremony. Emilio Monzó, the incoming president of the Chamber of Deputies, said of the matter, "Historically inauguration day is when the people celebrate the incoming president, not the one who's leaving." The White Hall, a closed hall, had no space for crowds and was not suitable for that purpose. Additionally, Kirchner, in 2007 and 2011, and her late husband Néstor Kirchner in 2003, were sworn in and received the presidential sash and staff in Congress, as was Eduardo Duhalde, who was selected president in 2002 by Congress. Kirchner also associated the White Hall with presidents from Argentina's 1976–83 military dictatorship.