 Binner thus became the first Socialist governor in Argentina's history and the first non-Justicialist elected governor of that province.Center-left Fabiana Ríos (ARI) became the first woman elected governor in Argentina, winning an upset in Tierra del Fuego Province, while the moderately conservative Mauricio Macri was elected Mayor of Buenos Aires (an office similar to governor) in June 2007.Corrientes Province and Santiago del Estero Province did not have elections for governors in 2007, as they had already taken place in 2005.