The Gaucho United Front was a coalition of two political parties in the Brazilian state of Rio Grande do Sul

Rio Grande do Sul

Rio Grande do Sul is the southernmost state in Brazil, and the state with the fifth highest Human Development Index in the country. In this state is located the southernmost city in the country, Chuí, on the border with Uruguay. In the region of Bento Gonçalves and Caxias do Sul, the largest wine...

 which formed shortly after Getulio Vargas

Getúlio Vargas

Getúlio Dornelles Vargas served as President of Brazil, first as dictator, from 1930 to 1945, and in a democratically elected term from 1951 until his suicide in 1954. Vargas led Brazil for 18 years, the most for any President, and second in Brazilian history to Emperor Pedro II...

 became governor. It was composed of the Riograndese Republican Party, led by Borges de Medeiros

Borges de Medeiros

Antônio Augusto Borges de Medeiros was a Brazilian lawyer and politician, and the President of Rio Grande do Sul for 25 years, during the period of Brazilian history known as the República Velha....

, and the Liberator Party

Liberator Party (Brazil)

The Liberator Party was a political party in Brazil which existed for two periods between 1928 and 1937 and then between 1945 and 1965. The PL's first incarnation was founded by members of the Rio Grande do Sul Federalist Party, notably Joaquim Francisco de Assis Brasil...

, led by Joaquim Francisco de Assis Brasil.

In 1929 it became a member of the larger Liberal Alliance

Liberal Alliance

Liberal Alliance may stand for:*Alliance of Liberals and Democrats for Europe, a political grouping in the European Parliament*Liberal Alliance of Montenegro, a political party active in Montenegro...

, which supported Vargas over Júlio Prestes

Júlio Prestes

Júlio Prestes de Albuquerque was a Brazilian politician. Governor of São Paulo state in 1926, he was elected president of Brazil on March 1, 1930, but never took office because the government was overthrown in the Revolution of 1930 that brought Getulio Vargas to power, three weeks before Prestes'...

 in the 1930 presidential election

Brazilian presidential election, 1930

The Brazilian presidential election of 1930 was held on March 1, 1930. Getulio Vargas, supported by the Liberal Alliance was defeated by the Republican Party of São Paulo candidate, Júlio Prestes...

. In 1932 José Antônio Flores da Cunha split from the FUG to form the Liberal Republican Party.