The politics of Uruguay abide by a presidential representative democratic republic, under which the President of Uruguay is both the head of state and the head of government, as well as a multiform party system. The president exercises executive power and legislative power and is vested in the two chambers of the General Assembly of Uruguay. The Judiciary is independent from the executive and legislature. The Colorado and National parties have been locked in a power struggle, with the predominance of the Colorado party throughout most of Uruguay's history. The 2004 election, however, brought the Encuentro Progresista-Frente Amplio-Nueva Mayoría, a coalition of socialists, former Tupamaros, communists, social democrats, and Christian Democrats among others to power with majorities in both houses of parliament. A majority vote elected President Tabaré Vázquez. In 2009, the Broad Front once again won the elections with a plurality of the votes. A presidential runoff was triggered because their candidate, José Mujica, received only 47.96 percent of the vote. The Broad Front's candidate beat former president Luis Alberto Lacalle Herrera of the Nacional Party in the second round of voting. In addition to the presidency, the Broad Front won a simple majority in the Uruguayan Senate and Chamber of Representatives. In 2014, former president Tabaré Vázquez retook power after defeating, in a second round, the candidate of the National Party, Luis Lacalle Pou, who would be the winner of the 2019 election, surpassing the socialist Daniel Martínez with 50.79 to 49.2 percent of the vote. History Until 1919, and from 1934 to 1952, Uruguay's political system, based on the 1830 Constitution, was presidential with a strong executive power, similar to that of the United States (but centralized and not federal). It was also characterized by the rivalry between the two traditional parties, the Colorado Party, liberal, and the Blanco Party (or National Party), conservative. Historically, the whites represented the interests of rural property, the Church and the military hierarchy, while colorados were supported by urban movable property and reformist intellectuals. In the 19th century, the country had similar characteristics to other Latin American countries: caudillism, civil wars and permanent instability (40 revolts between 1830 and 1903), foreign capitalism's control of important sectors of the economy, high percentage of illiterate people (more than half the population in 1900), land oligarchy, etc. Yet Montevideo became a refuge for Argentine exiles fleeing the dictatorship of Juan Manuel de Rosas and