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Mexican Political System Overview

Jun 26, 2025

Overview

This lecture covers the fundamental structure, history, and key features of the political system in Mexico.

Historical Background

  • Mexico gained independence from Spain in 1821, establishing its first constitution soon after.
  • The country experienced periods of instability, revolutions, and foreign interventions throughout the 19th century.
  • The Mexican Revolution (1910-1920) led to significant political and social reforms.

Government Structure

  • Mexico is a federal republic composed of 31 states and Mexico City as a separate entity.
  • Power is divided among executive, legislative, and judicial branches.
  • The president serves as both head of state and head of government.
  • The Mexican Congress is bicameral, consisting of the Senate (upper house) and Chamber of Deputies (lower house).

Political Parties and Elections

  • The Institutional Revolutionary Party (PRI) dominated Mexican politics for most of the 20th century.
  • Recent decades have seen increased competition from the National Action Party (PAN) and the Party of the Democratic Revolution (PRD).
  • Elections are held regularly for federal, state, and local offices.

Political Issues and Challenges

  • Corruption, drug-related violence, and inequality remain major political challenges.
  • Electoral reforms have aimed to improve transparency and fairness in voting processes.

Key Terms & Definitions

  • Federal Republic — A political system where states share power with a central government under a constitution.
  • Bicameral — A legislature with two chambers or houses.
  • PRI (Institutional Revolutionary Party) — Dominant Mexican political party for most of the 20th century.

Action Items / Next Steps

  • Review recent electoral reforms and their impact on Mexican politics.
  • Read assigned chapters on Mexican government structure and party systems.