I little thought at that time that my advocacy of Mr. Cass, upon such grounds as these, or his support by the State of which I am a citizen, would at any future day be quoted as an indorsement of the opinions contained in the Nicholson letter, as those opinions were afterwards defined. But it is not only upon this letter, but equally upon the resolutions of the convention as constructive of that letter, that he rested his argument. I will here say to the Senator that if, at any time, I do him the least injustice, speaking as I do from such notes as I could take while he progressed, I will thank him to correct me. But this letter entered into the canvass; there was a doubt about its construction; there were men who asserted that they had positive authority for saying that it meant that the people of a Territory could only exclude slavery when the Territory should form a constitution and be admitted as a State. This doubt continued to hang over the construction, and it was that doubt alone which secured Mr. Cass the vote of Mississippi. If the true construction had been certainly known he would have had no chance to get it. Our majority went down from thousands to hundreds, as it was. In Alabama the decrease was greater. It was not that the doctrine was countenanced, but the doubt as to the true meaning of the letter, and the constantly reiterated assertion that it only meant the Territories when they should be admitted as States, enabled him to carry those States. But if I mistook the Senator there, I think probably I did not on another point: that he claimed the support of certain Southern men for Mr. Richardson as Speaker of the House to be by them an acknowledgment of the doctrine of squatter sovereignty. I suppose those Southern men who voted for Mr. Richardson voted for him as I did for Mr. Cass, in despite of his opinions on that question, because they preferred Mr. Richardson to Mr. Banks, even with squatter sovereignty. They considered that the latter was carrying an amount of heresies which greatly exceeded the value of squatter sovereignty. It was a choice of evils--not an indorsement of his opinions. Neither did they this year indorse the opinions on that point of Mr. McClernand when they voted for him. According to the Senator's argument I could show him that Illinois was committed to the doctrine of federal protection to property in the Territories and the remedy of secession as a State right; committed irrevocably, unmistakably, with no right to plead any ignorance of the political creed of the individual, or the meaning of his words.