Lincoln allows he would accept state sovereignty at the debate in Freeport, IL

8/27/1858 In regard to the other question of whether I am pledged to the admission of any more slave states into the Union, I state to you very frankly that I would be exceedingly sorry ever to be put in a position of having to pass upon that question.

I should be exceedingly glad to know that there would never be another slave state admitted into the Union; but I must add, that if slavery shall be kept out of the territories during the territorial existence of any one given territory, and then the people shall, having a fair chance and clean field, when they come to adopt the constitution, un-influenced by the actual presence of the institution among them, I see no alternative, if we own the country, but to admit them into the Union. LL 254-5