Imre Pozsgay (born 1933 in Kony) is a Hungarian ex-Communist politician who played a key role in Hungary's transition to democracy after 1988. He is currently an advisor to prime minister Viktor Orban. Pozsgay joined the Hungarian Socialist Workers' Party after he graduated with an English degree from the Lenin Institute in Budapest. He worked for the party at both local and national levels and became deputy minister in 1975. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Office Holder