Dačić was the President of the Main Board of the SPS and was the Vice President of the SPS from 2000 to 2003, and federal deputy in the Chamber of Citizens of the Federal Assembly of the Federal Republic of Yugoslavia and Assembly of the State Union of Serbia and Montenegro from 1992 to 2004. In the sixth congress of SPS, on 18 January 2003, Dačić was elected the President of the Main Board of SPS. Since 2003, he was deputy in the parliament, and head of the parliamentary group of SPS.