In 1992 the party gained five seats (6.1% of the votes in Slovakia) in the "House of Nations" (Sněmovna národů) of the federal parliament of Czechoslovakia, which however was only because the party chairman was briefly Alexander Dubček, the ex-Czechoslovak leader, in 1992.
Prior to his early death in November 1992, he was one of their MPs in the federal parliament.
From 1994 to 1997, the SDSS was a member of a coalition called "Common Choice" (Spoločná voľba) that gained 10.18% (5 seats) in the Slovak parliament.
Following the 1998 elections, they joined the ruling Slovak Democratic Coalition until 2002.
[2] In 2003, an agreement was signed with the Direction (Smer) party to work closely together in all spheres.