Revolutionary Nationalist Movement

The Revolutionary Nationalist Movement was begun in 1941 by future presidents Víctor Paz Estenssoro and Hernán Siles Zuazo. It soon attracted some of the brightest members of the Bolivian intelligentsia. Among the party's most prominent supporters were Humberto Guzmán Fricke, Juan Lechín, Carlos Montenegro, Walter Guevara Arze, Javier del Granado, Augusto Céspedes, Lydia Gueiler, Guillermo Bedregal, and Gonzalo Sánchez de Lozada, a number of whom later became presidents of Bolivia.

At the time of its establishment it was a leftist/reformist party, along the lines of similar Latin American parties such as the Dominican Revolutionary Party, the Brazilian Labour Party, Democratic Action in Venezuela, the Mexican Institutional Revolutionary Party, the Guatemalan Revolutionary Action Party, the Socialist Party of Chile, the Labour Party in Argentina, the Cuban Revolutionary Party – Authentic, the National Liberation Party in Costa Rica and the American Popular Revolutionary Alliance in Peru. The MNR first came to power in 1943, as supporters of the reformist military regime of Gualberto Villarroel.

The Revolutionary Nationalist Movement led the leftist Bolivian National Revolution of 1952 and ruled the country until 1964 when it was overthrown by the military coup of René Barrientos. During the presidencies of Paz Estenssoro (1952–56 and 1960–64) and Hernán Siles Zuazo (1956–60) were the top leaders of the Revolutionary period, establishing the universal vote, nationalizing the tin mines, and instituting an extensive agrarian reform. During this time many of the old elitist parties which had previously dominated Bolivian politics either disappeared or faded into irrelevance. This left the MNR in the center of the Bolivian political spectrum.

Siles and Paz split in the 1960s over Paz's ambitions and personal control of the party. Filled with many strong personalities, the party had in fact begun to fragment along political and personal lines since the late 1950s, with Wálter Guevara being the first to leave and the popular Juan Lechín being expelled in 1964. Siles went on to form the Revolutionary Nationalist Leftwing Movement (MNRI) and Lechín the Revolutionary Party of the Nationalist Left (PRIN).

Falling from power only deepened the intra-party squabbles. With the main body of the MNR firmly behind Paz Estenssoro, the old leader made what can be seen as a major mistake in 1971, when he supported the coup d'état of Hugo Banzer Suárez. He apparently believed that Banzer would only rule for a year or two before calling elections that the MNR would almost certainly win. If so, he badly miscalculated; Banzer exiled Paz in 1975. The main body supported Paz in exile, while a faction continued to back Banzer.

Paz' support of the Banzer dictatorship was a move that was to cost his party dearly at the polls in subsequent years. While Paz seemed to be moving steadily to the right, Siles Zuazo broke off to found the left-leaning Left-wing Revolutionary Nationalist Movement (MNRI) in 1971. Indeed, Siles was the post-MNR politician who was best able to capitalize on the remaining legitimacy and respect that MNR had as a result of the 1952 Revolution. Paz Estenssoro led the MNR-proper in the Bolivian general elections of 1978, 1979, and 1980 elections, finishing third, second, and second, respectively.

Led by Sánchez de Lozada, the MNR won the 1993 elections and Sanchez was confirmed as president by parliament. He continued the policies of the NEP. The party placed second in 1997 elections, with the presidential candidate Juan Carlos Durán (at the time, the Bolivian constitution prohibited direct re-election of a sitting president) losing to the former dictator Banzer.

• Official website