In 1975, he was elected as president of the students union of the Dental School of the National and Kapodistrian University of Athens and as a member of the National Students Union, in the first elections after the end of the Greek military junta of 1967–1974. From 1976 until 1981, he was the Deputy Secretary of the PASOK youth wing.
He was elected as a member of the Hellenic Parliament for the first time in 1981, as a member of Parliament for the prefecture of Arcadia. In 1984, he was elected as a member of the PASOK Central Committee. In 1993, he was a member of the Presidency of PASOK's Parliamentary Group.