He was the governor of the Argentine province of Chubut .
Mario das Neves ( April 27 , 1951 -- October 31 , 2017 ) was an Argentine Justicialist Party politician .
Mario das Neves was the politician of the Argentine province of Chubut .
Mario das Neves ( April 27 , 1951 -- October 31 , 2017 ) was an Argentine Justicialist Party politician .