Social Democratic group (Switzerland)

The Social Democratic Group (German: Sozialdemokratische fraktion, French: Groupe socialiste, Italian: Gruppo socialista, abbreviated S) is the second largest parliamentary group in the Swiss Federal Assembly. It is formed by the Social Democratic Party of Switzerland.^[1]

Social Democratic group (S) Sozialdemokratische fraktion Groupe socialiste Gruppo socialista Fracziun Socialdemocratica
Chamber	Swiss National Council and Council of States
Foundation	1911
Member parties	SP/PS
President	Roger Nordmann
Representation	48 / 246
Ideology	Center-left to left-wing

The Social Democratic Party were represented in the National Council; they sat as part of the Social-Political group with the democrats from 1896 then formed their own parliamentary group in 1911.^[2]

Composition

Historical composition of the Social Democratic group^[3][1]

Legislature	NC	CS	Total	Changes during the legislature
22nd (1912)	17	1	18	Gained 1 NC in 1913 then gained 1 NC in 1914
23rd (1914)	19	1	20	Lost 1 NC in 1916 then lost 1 NC in 1917
24th (1917)	19	1	20
25th (1919)	41	0	41	Lost 3 NC then regained 1 NC in 2021
26th (1922)	43	1	44	Lost 1 NC then regained 1 NC in 1924
27th (1925)	49	2	51
28th (1928)	50	0	50	Gained 1 CS in 1930
29th (1931)	49	2	51	Lost 1 CS then 1 NC in 1933, then regained 1 NC in 1934
30th (1935)	50	3	53
31st (1939)	45	3	48
32nd (1943)	56	5	61	Lost 2 NC in 1944, gained 1 CS in 1945, then gained 1 NC in 1947
33rd (1947)	48	5	53	Lost 1 CS in 1948 then gained and lost 1 CS in 1949
34th (1951)	49	4	53
35th (1955)	53	5	58
36th (1969)	51	2	53
37th (1963)	53	3	56
38th (1967)	51	2	53
39th (1971)	46	4	50
40th (1975)	55	5	60	Gained 1 CS in 1978
41st (1979)	51	9	60
42nd (1983)	47	6	53
43rd (1987)	42	5	47
44th (1991)	43	3	46
45th (1995)	58	5	63	Lost 1 NC in 1999
46th (1999)	53	6	59	Lost 1 NC in 2002
47th (2003)	52	9	61
48th (2007)	43	9	52	Lost 1 NC in 2009, lost 1 NC in 2010, then lost 1 CS in 2011
49th (2011)	46	11	57
50th (2015)	43	12	55	Lost 1 NC in 2019
51st (2019)	39	8	47

List of presidents of the group

The group is currently presided by national councillor Roger Nordmann (VD)

• Herman Greulich (1911)
• Hans Affolter (1917)
• Ernest-Paul Graber (1918)
• Arthur Schmid sr. (1925)
• Robert Grimm (1936)
• Walther Bringolf (1945)
• Fritz Grütter (1953)
• Mathias Eggenberger (1957)
• Pierre Graber (1966)
• Edmund Wyss (1969)
• Anton Muheim (1971)
• Richard Müller (1972)
• Heinz Bratschi (1978)
• René Felber (1980)
• Félicien Morel (1981)
• Dario Robbianni (1983)
• Ursula Mauch (1987)
• Ursula Hafner (1995)
• Franco Cavalli (1999)
• Hildegard Fässler (2002)
• Ursula Wyss (2006)
• Andy Tschümperlin (2012)
• Roger Nordmann (2015)