ᵻlˈɛktᵻd æz ðə kˈændᵻdˌeɪt ʌvðɪ ɐmˈɛɹɪkən pˈɑːɹɾi tə ðə θˈɜːɾifˈoːɹθ kˈɑːŋɡɹəs, bˌʌt nˌɑːɾə kˈændᵻdˌeɪt fɔːɹ ɹᵻnˌɑːmᵻnˈeɪʃən ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈɪfti sˈɪks, ɹˈɪvɚz sˈɜːvd fɹʌm mˈɑːɹtʃ fˈoːɹ, wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈɪfti fˈaɪv tə mˈɑːɹtʃ θɹˈiː, wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈɪfti sˈɛvən.
Elected as the candidate of the American Party to the Thirty-fourth Congress, but not a candidate for renomination in 1856, Rivers served from March 4, 1855 to March 3, 1857.