Beginning in the late 1840s, subaltern groups entered the political arena to forge alliances, both temporary and enduring, with the elite Liberal and Conservative Parties. In the process, each group formed its own political discourses and reframed republicanism to suit its distinct needs. These popular liberals and popular conservatives bargained for the parties’ support and deployed a broad repertoire of political actions, including voting, demonstrations, petitions, strikes, boycotts, and armed struggle. By the 1880s, though, many wealthy Colombians of both parties blamed popular political engagement for social disorder and economic failure, and they successfully restricted lower-class participation in politics. Sanders suggests that these reactionary developments contributed to the violence and unrest afflicting modern Colombia. Yet in illuminating the country’s legacy of participatory politics in the nineteenth century, he shows that the current situation is neither inevitable nor eternal.