 He was part of the Marxist humanist Praxis School, and in 1975 he was expelled from the faculty, together with seven other colleagues.Mićunović was one of the members of the Founding Committee of the Democratic Party in December 1989 who began the process of re-establishing the Democratic Party (DS).He was elected the first President of the re-established Democratic Party at the founding party conference on February 3, 1990.