 he started to participate in politics through the popular Autonomist Party of Buenos Aires, led by Adolfo Alsina and confronting Bartolomé Mitre, along with Aristóbulo del Valle, Leandro Alem and Bernardo de Irigoyen, among other luminaries of the day with whom he would form the future Radical Civic Union party.He took an active part on the Revolution of the Park and was one of the first to enter the Artillery Park, along with Leandro Alem, being arrested and exiled to Uruguay.A founding member of the Radical Civic Union in 1891, he was again part of an armed insurrection in the Revolution of 1893, being arrested, incarcerated in Ushuaia and again exiled to Uruguay.