Bravo left the Socialist Party in 1957, since he opposed the participation of many of his fellow party members in the Consultative Junta convened by the military regime that had ousted President Juan Perón two years earlier. He took part in the writing of the Teacher's Statute, and was involved in the 1973 unification of the teachers' labour movement into the Education Workers Confederation of the Argentine Republic (CTERA), of which he became Secretary General.