The Social Democratic Party of Switzerland (SP) is a major political party in Switzerland, founded in 1888. It advocates for social justice, equality, and environmental sustainability. The party supports a mixed economy, emphasizing the importance of both private enterprise and public welfare. The SP is known for its progressive policies, including support for workers' rights, healthcare access, and education. It plays a significant role in the Swiss political landscape, often participating in coalition governments at both the federal and cantonal levels, influencing legislation and public policy.