Alliance of Independent Social Democrats
During this time , the party served as the only opposition to the dominance of the ultra-nationalist Serb Democratic Party , which was led by Radovan Karadžić for the majority of the 1990s . 
<triplet> Serb Democratic Party <subj> Radovan Karadžić <obj> founded by <triplet> Radovan Karadžić <subj> Serb Democratic Party <obj> member of political party