Early SDS divisions SDS-United Opposition was founded in December 1989 as a coalition of 8 movements and 2 parties, later joined by 6 additional parties. Following the
1990 Constitutional Assembly election, the gridlocked Grand National Assembly
elected a joint ticket of SDS's
Zhelyu Zhelev and BSP's
Atanas Semerdzhiev to serve as
Chairman (President) and
Co-Chairman of the republic in August 1990. In 1991 SDS suffered internal divisions, with a split between SDS-Movement, SDS-Center, SDS-Liberals and BZNS. The Constitutional Assembly approved
the new constitution in July 1991 with 313 votes in favour and dissolved itself. Following the subsequent
1991 election,
Philip Dimitrov's SDS-Movement was the only SDS faction to enter the National Assembly, where it formed
a minority government with the support of
DPS.
Zhelev's relationship with SDS Zheluy Zhelev was
elected to a full presidential term term in January 1992 with SDS MP
Blaga Dimitrova as his vice president. In August 1992 he called the
Boyana meadows press conference, in which he withdrew his support from the SDS minority government. Following the press conference 23 MPs around
Dimitar Ludzhev (nicknamed "blue ants") left the SDS parliamentary group and DPS withdrew its support for the government, which fell in October and presidential advisor
Lyuben Berov became Prime Minister with the support of DPS and BSP. Zhelev's relationship with SDS continued to deteriorate with VP Blaga Dimitrova resigning in July 1993. She later became a harsh critic of him during the primary process and endorsed Petar Stoyanov. Following the
1994 election the
BSP-led coalition formed a majority government, leaving DPS, SDS BZNS-DP, one of its splinter coalitions, into opposition. ==Candidates==