||This biographical article needs additional citations for verification. (October 2008)|
|Rubén Costas on December 2007|
|Governor of Santa Cruz Department|
2006 – present
|Born||Rubén Armando Costas Aguilera
October 6, 1955
Santa Cruz de la Sierra, Bolivia
|Political party||Verdad y Democracia Social|
|Spouse(s)||Sonia Vincenti Égüez|
Rubén Armando Costas Aguilera (born October 6, 1955 in Santa Cruz de la Sierra, Santa Cruz) is a Bolivian politician and the current governor of Bolivia's Santa Cruz department for the Truth and Social Democracy (VERDES) party. In 2013, he founded the Social Democrat Movement party to participate in the 2014 presidential and parliamentary election. Previously he served as prefect (the same office, which has been renamed by the 2009 constitution) on behalf of the Autonomy for Bolivia party. He was one of the nine Bolivian prefects directly elected in the general elections of 2005. This election was the result of several negotiations and large, peaceful public demonstrations in Santa Cruz. The 1967 Bolivian constitution said that prefects can only be appointed by the president, but because of the negotiations and popular desire, the Bolivian Congress approved Law 3015 to formalize the prefect election process.
Since he took office, he has been strongly critical of the government of President Evo Morales because of political, ideological and regional differences, also, his supporters claim that Morales is opposed to give the country's eastern departments more autonomy, as voted in a 2006 referendum, however, as it was written in the referendum's ballots the autonomy has to be approved and legislated by the constituent assembly. The constituent assembly produced a draft constitution which is rejected by large sectors of the population, especially in the eastern departments, and therefore tension between Costas and Morales has increased significantly. Shortly after the 2008 recall vote, Costas caused controversy when he attacked Morales, calling him a "dictator" and using the slur "macaco" (monkey). 
Costas is criollo of Spanish descent.
- Candori, Iván (2013-03-29). "Costas da forma a un nuevo partido". La Razón. Retrieved 2013-11-24.
- Bolivia's opposition governor Ruben Costas.
- "Opositores califican de "macaco" y "dictador" al gobernante". La Nación. August 8, 2008. Retrieved 2008-08-12.
- Declarations the Rubén Costas, 4 de mayo de 2008
- Autonomy for the rich ones, revolution for the poor men 1
- Autonomy for the rich ones, revolution for the poor men 2
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