Solidarity (French: solidaritéS)^[3] is a socialist and Trotskyist political party, present in the French-speaking part of Switzerland, in the cantons of Geneva, Vaud, Neuchâtel and Fribourg. The party is a member of the European Anti-Capitalist Left. It is the furthest left party represented in the National Council.

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Solidarity solidaritéS
Founded	1992 (1992)
Headquarters	1211 Geneva
Ideology	Socialism[1] Trotskyism[1] Anti-capitalism
Political position	Left-wing to far-left[2]
European affiliation	European Anti-Capitalist Left
National Council	0 / 200
Council of States	0 / 46
Cantonal legislatures	5 / 2,608
Website
solidarites.ch
Politics of Switzerland Political parties Elections

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The party was founded in 1992 in Geneva. In the 1995 federal elections, it received 0.3% of the vote, failing to win a seat. Its vote share increased to 0.5% in the 1999 elections, and a party member running on a list named "Alliance of the Left (Solidarity–Independents)" won a seat in the National Council.^[4] The party retained its seat in the 2003 elections, but lost parliamentary representation following the 2007 elections, in which its vote share fell to 0.4%.^[5]

The 2011 elections saw the vote share reduced to 0.3%;^[6] although its vote share increased to 0.5% in the 2015 elections, the party remained seatless. Running with the Swiss Party of Labour in the 2019 elections, the party once again won a seat in the National Council, with the electoral alliance receiving a vote share of 1.0%.^[1]