The Autonomous Socialist Party (Italian: Partito Socialista Autonomo, PSA) was a regional political party in Switzerland.
History
The PSA was established in 1966; its founders were former members from the Social Democratic Party who had been expelled for their far-left views. It failed to win a seat in the National Council in the 1971 federal elections, but in the 1975 elections it ran in Ticino in alliance with the Progressive Organizations of Switzerland (POCH), winning one seat. It continued its alliance with POCH for the 1979 elections, retaining its single seat. It retained the seat again in the 1983 and 1987. It was renamed Unitarian Socialist Party in 1988, After retaining its seat again in 1991, it merged back into the Social Democratic Party in 1992.