Lincoln supported the Corwin Amendment to the Constitution, which passed Congress and was awaiting ratification by the states when Lincoln took office.
lˈɪŋkən səpˈoːɹɾᵻd ðə kˈɔːɹwɪn ɐmˈɛndmənt tə ðə kˌɑːnstɪtˈuːʃən, wˌɪtʃ pˈæst kˈɑːŋɡɹəs ænd wʌz ɐwˈeɪɾɪŋ ɹˌæɾɪfɪkˈeɪʃən baɪ ðə stˈeɪts wɛn lˈɪŋkən tˈʊk ˈɑːfɪs.