page_title: Politics of Mexico
section_title: Historical political development
hierarchical_section_title: Politics of Mexico / Historical political development
caption_attribution_description: Español: Fotografía del Ex Presidente de México, Vicente Fox; del Ex Jefe de Gobierno de la Ciudad de México, Andrés Manuel López Obrador y del ex gobernador del Estado de México, Arturo Montiel. English: Picture of Mexican former president Vicente Fox, Mexico City's Mayor Andrés Manuel López Obrador talking back and former Governor Arturo Montiel taken on June 11, 2003.
context_page_description: The Politics of Mexico take place in a framework of a federal presidential representative democratic republic whose government is based on a congressional system, whereby the President of Mexico is both head of state and head of government, and of a multi-party system. The federal government represents the United Mexican States and is divided into three branches: executive, legislative and judicial, as established by the Political Constitution of the United Mexican States, published in 1917. The constituent states of the federation must also have a republican form of government based on a congressional system as established by their respective constitutions.
  The executive power is exercised by the executive branch, which is headed by the President, advised by a cabinet of secretaries that are independent of the legislature. Legislative power is vested upon the Congress of the Union, a two-chamber legislature comprising the Senate of the Republic and the Chamber of Deputies. Judicial power is exercised by the judiciary, consisting of the Supreme Court of Justice of the Nation, the Council of the Federal Judiciary and the collegiate, unitary and district tribunals.
context_section_description: The Mexican Revolution was followed by the Great Depression, which led to a severely fragmented society and very weak institutions. In 1929, all factions and generals of the Mexican Revolution were united into a single party, the National Revolutionary Party (NRP), with the aim of stabilizing the country and ending internal conflicts. During the following administrations, since 1928, many of the revolutionary ideals were put into effect, among them the free distribution of land to peasants and farmers, the nationalization of the oil companies, the birth and rapid growth of the Social Security Institute as well as that of Labor Unions, and the protection of national industries.
  President Lázaro Cárdenas was fundamental to recover some of the social control that was lost during the Revolution and the following economic meltdown in the United States. However, Cárdenas was followed by a series of less-talented leaders that were unable to continue this path and establish an effective rule of law on Mexican society. Moreover, Cárdenas presidency happened before the UN focused on states as the rule in the 1940s and 1950s.
  The NRP was later renamed the Mexican Revolution Party and finally the Institutional Revolutionary Party. The social institutions created by the party itself provided it with the necessary strength to stay in power. In time, the system gradually became, as some political scientists have labeled it, an "electoral authoritarianism", in that the party resorted to any means necessary, except that of the dissolution of the constitutional and electoral system itself, to remain in power. In fact, Mexico was considered a bastion of continued constitutional government in times where coup d'états and military dictatorships were the norm in Latin America, in that the institutions were renovated electorally, even if only in appearance and with little participation of the opposition parties at the local level.
  The lack of the establishment of a true democracy in Mexico can be partially explained many factors, like the ones described above. However, one of them could also be the oil reserves that exist in the country and that were nationalized by the Cárdenas government. Several empirical studies point to a correlation between the existence of natural resources and the difficulty of turning into a democracy.
  The first cracks in the system, even though they were merely symbolic, were the 1970s reforms to the electoral system and the composition of the Congress of the Union which for the first time incorporated proportional representation seats allowing opposition parties to obtain seats, though limited in number, in the Chamber of Deputies. As minority parties became involved in the system, they gradually demanded more changes, and a full democratic representation. Even though in the 1960s, a couple (of more than two thousand) municipalities were governed by opposition parties, the first state government to be won by an opposition party was Baja California, in 1989.
  Historically, there were important high-profile defections from the Institutional Revolutionary Party, like the ones of Juan Andreu Almazán (1940), Ezequiel Padilla (1946), Miguel Henríquez Guzmán (1952), and Cuahtémoc Cárdenas (1988), son of President Lázaro Cárdenas. These departures happened mainly because they opposed the presidential candidate nominations; however, only Cárdenas departure in 1988 resulted in the establishment of another political party (Party of the Democratic Revolution).
  The presidential elections held in 1988 marked a watershed in Mexican politics, as they were the first serious threat to the party in power by an opposition candidate: Cuauhtémoc Cárdenas, who was nominated by a broad coalition of leftist parties. He officially received 31.1 percent of the vote, against 50.4 percent for Carlos Salinas de Gortari, the PRI candidate, and 17 percent for Manuel Clouthier of the National Action Party (PAN). It was believed by some that Cardenas had won the election, but that the then government-controlled electoral commission had altered the re
caption: President Vicente Fox (left) with López Obrador (center) and former México State governor Arturo Montiel (right).
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