 In the years that followed, he was one of the most prominent leaders of Córdoba's Unitarianism, along with Manuel D. Pizarro, Félix de la Peña and Justiniano Posse.With the fall or Fragueiro in 1860, victim of his double play of support and opposition to the federal government, Posse took control of the province, and tilted the government to a decided support of the policies of Buenos Aires.Even after the federal intervention of President Santiago Derqui, his group reached power with Posse, after the Battle of Pavón and the short tenure of Marcos Paz.