The Parti social démocratique (English: Social Democratic Party; abbreviated PSD) is a social democratic political party in the Kingdom of Rildanor, and later after the creation of Canrille, in the Empire de la Canrille. The party has, introduced and passed widespread and sweeping reforms in Rildanor. Since then, the PSD has formed a majority government for 65 years, and were part of a coalition government with the GreenLeft for 7 years, putting the total amount of time the PSD has been in government to 72 years. Currently, the PSD forms the official opposition.