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.
President of Mexico
The history of Mexico has not been a peaceful one. After the fall of dictator Porfirio Díaz in 1910 because of the Mexican Revolution, there was no stable government until 1929, when all the revolutionary leaders united in one political party: the National Revolutionary Party, which later changed its name to the Party of the Mexican Revolution, and is now the Institutional Revolutionary Party (). From then until 1988, the PRI ruled Mexico as a virtual one-party state.