Bicameralism Canadian provinces had all their upper houses abolished. In Argentina, eight provinces have bicameral legislatures, with a Senate and a Chamber of Deputies: Buenos Aires, Catamarca, Corrientes, Entre Ríos, Mendoza, Salta, San Luis (since 1987) and Santa Fe. Tucumán and Córdoba changed to unicameral systems in 1990 and 2001 respectively. In Australian states, the lower house was traditionally elected based on the one-vote-one-value principle, whereas the upper house was partially appointed and elected, with a bias towards country voters and landowners. In Queensland, the appointed upper house was abolished in 1922, while in New South Wales there were similar attempts
2015 Argentine general election parties. Mendoza provided an early victory for the opposition, by the radical Alfredo Cornejo. Alberto Rodríguez Saá was elected governor of San Luis once again. The Front for Victory retained the provinces of San Juan and La Rioja, with Sergio Uñac and Sergio Casas. Lucía Corpacci was reelected in Catamarca and Gildo Insfrán was reelected in Formosa. In Chaco, Domingo Peppo was elected governor. Juan Manuel Urtubey got an important victory in Salta against Romero, and kept the province for the FPV. The radical Gerardo Morales was elected governor of Jujuy, the first non-Peronist one since the return of democracy