Los partidos de ámbito no estatal en Aragón : el Partido Aragonés y la Chunta Aragonesista

The aim of this article is to describe the political and organizational evolution of the two main non state wide parties in Aragon: the Partido Aragonés (PAR) and the Chunta Aragonesista (CHA). The article focuses on the importance that the environmental changes, especially at the electoral arena, have had on the evolution of both parties. And also points out the similarities of their trajectories, deeply marked by a significant initial growth and steady electoral erosion once the representation threshold is achieved.