This article aims to outline the challenges that two disciplines, fundamental to understand the political and governmental activities, face before an increasingly demanding and plural society at the beginning of the XXI century. Understanding political science and public administration in the framework of the capitalist system, where both were born and developed, inextricably interweaves the evolution of political science at different times, where the birth of the public administration, as a scientific discipline, can also be found. The purpose of this historic journey is to identify the main transformations of the political science and also those that are necessary to strengthen, both political science and public administration as useful a...