Irineu Machado was one of Rio de Janeiro's most important politicians during the first Brazilian Republic. Elected as a member of parliament for the first time in 1896, he went through a long and troubled political career until the 1930 Revolution,when he left the national political scene. In order to follow and analyze his political trajectory, this article proposes to expose arguments which seek to verify possible connections between republican radicalism and the way Irineu Machado conceived and made politics.
First Brazilian Republic; Radicalism; Political Trajectory