Lincoln's argument assumed a moral tone, as he claimed Douglas represented a conspiracy to promote slavery.
lˈɪŋkənz ˈɑːɹɡjuːmənt ɐsˈuːmd ɐ mˈɔːɹəl tˈoʊn, æz hiː klˈeɪmd dˈʌɡləz ɹˌɛpɹᵻzˈɛntᵻd ɐ kənspˈɪɹəsi tə pɹəmˈoʊt slˈeɪvɚɹi.