The Socialist Party of France is the main leftwing opposition in France. It was founded in 1969 after a split in the French Section of the Workers' International (SFIO, which was informally known as the Socialist Party). It held considerable power in the 1980s but in 1993 it lost nearly 200 seats in the French Assembly. Since then it has worked to regain its power and currently has 186 seats in the Assembly. It is part of Socialist International.