How is the Democratic party responsible for that excitement, and for the difference of opinion which pervades the Republic on that subject, threatening a dissolution of the Union? Why, we are responsible for it because we do not join the Republican party to exclude slavery from the Territories? We are responsible for it because we do not oppose the admission of a State into the Union when her constitution tolerates slavery. We are responsible for it because we do not join in the declaration that all men are created free and equal, and apply that doctrine to the African slaves of the South; because we do not declare that those slaves are equal to us, and therefore of right free.

We are required by the Republican party to unite with them in advocating that doctrine, and to declare besides that slavery and polygamy are twin relics of barbarism. If we join them in all these declarations of principle; if we join them in advocating these measures, then, of course, the country will be quiet. But, sir, who is responsible for the agitation? Is it not the party that calls for legislation? Has the Democratic party ever asked the national Legislature to establish slavery in her Territory? No, sir; but the Republican party comes into this Hall and demands that the power of the Government should be interposed to exclude slavery from the Territories. Because we do not agree with them; because we do not think as they do; and because we do not vote as they do; because we do not acquiesce in these propositions, why, then we are responsible for this agitation, and they are not! They ask us to adopt the maxim that no more slave States shall be admitted into the Union, and because we do not agree with them on that subject, we are the agitators, and they are not.

Mr. Chairman, from what source do we learn this new doctrine? Do we find it in the legislation of our forefathers? Are there any restrictions in the Constitution of the United States on the subject, or any grant of power to prohibit slavery in a Territory when that Territory is organized? Is there anything in the Constitution of the United States to justify it—and I appeal to that as the very first example of our forefathers in the administration of this Government—is there anything in that instrument which authorizes you to say that a State shall not be admitted into the Union because its constitution tolerates slavery?

I differ from gentlemen upon the Republican side of the House as to the manner in which I would learn a lesson front the example of our forefathers. I would not search for it in their private declarations. I would search for their legislative record. We are legislators, and for our legislation we want legislative precedents. I care not whether the opinions of the founders of the Republic were for slavery or against it, if the legislation of which they were the authors corresponded with the views I entertain. What judge of any court, what lawyer who wished to ascertain the true doctrine of a case, would search for the private opinions of the judge when the reports bristled with adjudicated cases from which he could learn the true doctrine which he had expressed under oath and in the discharge of his duties? When you search for the opinions of our ancestors to guide us as legislators, look at their conduct as legislators, and not their private opinions. Every lawyer, every sensible man, every rational man, knows that that is the true test of the opinions of our ancestors upon a given subject. When they legislate under oath; when they legislate for the good of the whole country, they lay aside their private opinions and their peculiar prejudices.

Now, sir, what do we find in the Constitution of the United States which inculcates the doctrine that slavery must not be extended into the Territories? I call the attention of gentlemen to the first clause of section nine, article one of the Constitution:

“The migration or importation of such persons as any of the States now existing shall think proper to admit, shall not be prohibited by the Congress prior to the year 1808, but a tax or duty may be imposed upon such importation, not exceeding ten dollars for each person.”

In order, Mr. Chairman, that there may be no mistake about the meaning of that clause of the Constitution, I send to the Clerk’s desk, to be read, an extract from Elliott’s Debates.

The Clerk read from Elliott’s Debates, (Yate’s Minutes,) pages 35 and 36, as follows:

“By the ninth section of this article, the importation of such persons as any of the States now existing shall think proper to admit, shall not be prohibited prior to the year 1808, but a duty may be imposed on such importation not exceeding ten dollars for each person.

“The design of this clause is to prevent the General Government from prohibiting the importation of slaves, but the same reasons which caused them to strike out the word ‘national,’ and not admit the word ‘stamps,’ influenced them here to guard against the word ‘slaves.’ They anxiously sought to avoid the admission of expressions which might be odious in the ears of Americans, although they were willing to admit into their system those things which the expressions signified: and hence it is that the clause is so worded, as really to authorize the General Government to impose a duty of ten dollars on every foreigner who comes into a State to become a citizen, whether he comes absolutely free, or qualifiedly so as a servant, although this is contrary to the design of the framers, and the duty was only made to extend to the importation of slaves.