zɛlˈɛŋkoʊ wʌz ᵻlˈɛktᵻd æz ɐ dˈɛməkɹˌæt tə ðɪ ˈeɪɾifˈoːɹθ ænd tə ðə θɹˈiː səksˈiːdɪŋ kˈɑːŋɡɹəsᵻz dʒˈænjuːˌɛɹi θɹˈiː, nˈaɪntiːnhˈʌndɹɪd fˈɪfti fˈaɪv dʒˈænjuːˌɛɹi θɹˈiː, nˈaɪntiːnhˈʌndɹɪd sˈɪksti θɹˈiː.
Zelenko was elected as a Democrat to the Eighty-fourth and to the three succeeding Congresses (January 3, 1955 – January 3, 1963).