Political parties in Mexico play a crucial role in the country's democratic system. The main parties include the Institutional Revolutionary Party (PRI), the National Action Party (PAN), and the Party of the Democratic Revolution (PRD). Each party has distinct ideologies and platforms, influencing policies and governance at various levels. In recent years, the Morena Party has gained significant popularity, reflecting a shift in the political landscape. Elections are held every three years for the Chamber of Deputies and every six years for the presidency, allowing citizens to choose their representatives and shape the nation's future.