Most of the first cabinet, organised in Chascomús, was composed of trusted colleagues of Alfonsín. Alfonsín appointed as minister of labour Antonio Mucci, who belonged to a faction of the UCR that sought to reduce the influence of Peronism among labour unions, and promptly sent a bill to Congress designed to promote independent unions. Facing an economic crisis, he appointed Bernardo Grinspun as minister of the economy. He appointed Aldo Neri minister of health, Dante Caputo minister of foreign relations, Antonio Tróccoli minister of interior affairs, Roque Carranza minister of public works, Carlos Alconada Aramburu minister of education, and Raúl Borrás minister of defense. Juan Carlos Pugliese led the chamber of deputies, and Edison Otero was the provisional president of the senate. Many presidential negotiations took place at the Quinta de Olivos, the official residence of the president, rather than at the Casa Rosada.