The article examines the foundation of Mexico's party system as stipulated in its Constitution, which is rooted in the legacy of a state party regime. This regime, primarily driven by its revolutionary origins, harbored a deep suspicion of the citizen vote, perceiving it as unpredictable and a potential threat in the hands of the populace. Consequently, the regulations surrounding political parties were designed to limit the burgeoning of organizations that could label themselves as parties, thereby competing in elections. The overarching goal was to mitigate the risks associated with voting, curb its volatility, and ensure the stability of the regime, particularly the ongoing dominance of the hegemonic party in power.

To participate in elections, political organizations were required to demonstrate a significant operational presence across most of the national territory, which was an unavoidable prerequisite. This filtering mechanism was intended not only to control the political landscape but also to secure the political elite's grip on power. Even today, such stringent conditions persist in shaping the electoral framework, thereby limiting new entrants into the political arena and hindering the evolution of a more pluralistic democratic society in Mexico. As the article suggests, despite the demand for more political representation, the legacy of the past continues to act as a barrier against the emergence of a more robust multi-party system, which could foster greater societal participation.