Mexican Revolution
The PRI, or Institutional Revolutionary Party is one of the major lasting legacies of the Mexican Revolution; its first iteration was the Partido Nacional Revolucionario founded in 1929 under Northern revolutionary general and president of Mexico (1924–1928) Plutarco Elías Calles, following the assassination of president-elect (and former president) Álvaro Obregón in 1928. The establishment of the party created an enduring structure that managed not only presidential succession but also groups with competing interests. Initially, Calles remained the power behind the presidency during a period known as the Maximato, but his hand-picked presidential candidate, Lázaro Cárdenas, won a power struggle with Calles, expelling him from the country. Cárdenas reorganized the party that Calles founded, creating formal sectors for interest groups, including one for the Mexican military. The reorganized party was named Party of the Mexican Revolution. In 1946, the party again changed its name to the Institutional Revolutionary Party. The party under its various names held the presidency uninterruptedly from 1929 to 2000, and again from 2012 to 2018 under President Enrique Peña Nieto.
Confederation of Mexican Workers
The Confederation of Mexican Workers ("Confederación de Trabajadores de México" (CTM)) is the largest confederation of labor unions in Mexico. For many years, it was one of the essential pillars of the Partido Revolucionario Institucional (the Institutional Revolutionary Party, or PRI), which ruled Mexico for more than seventy years. However, the CTM began to lose influence within the PRI structure in the late 1980s, as technocrats increasingly held power within the party. Eventually, the union found itself forced to deal with a new party in power after the PRI lost the 2000 general election, an event that drastically reduced the CTM's influence in Mexican politics.