"_Resolved_, That true policy requires the Government of the United States to strengthen its political and commercial relations upon this continent by the annexation of such contiguous territory as may conduce to that end, and can be justly obtained; and that neither in such acquisition nor in the territorial organization thereof, can any conditions be constitutionally imposed, or institutions be provided for or established, inconsistent with the right of the people thereof, to form a free, sovereign State, with the powers and privileges of the original members of the confederacy. "_Resolved_, That, in organizing a territorial government for territory belonging to the United States, the principles of self-government upon which our federative system rests will be best promoted, the true spirit and meaning of the Constitution be observed, and the Confederacy strengthened, by leaving all questions concerning the domestic policy therein to the legislatures chosen by the people thereof." In a speech of power, delivered in the Senate Jan. 15, 1848, he tried to demonstrate the correctness of the principle of these resolves. From this, the first speech made during the slavery controversy in favor of congressional non-intervention with slavery in the territories, we make the following extracts: "The Republican theory teaches that sovereignty resides with the people of a State, and not with its political organization; and the Declaration of Independence recognizes the right of the people to alter or abolish and reconstruct their government. If sovereignty resides with the people and not with the organization, it rests as well with the people of a territory, in all that concerns their internal condition, as with the people of an organized State. And if it is the right of the people, by virtue of their innate sovereignty, to 'alter or abolish,' and reconstruct their government, it is the right of the inhabitants of territories, by virtue of the same attribute, in all that appertains to their domestic concerns, to fashion one suited to their condition. And it, in this respect, a form of government is proposed to them by the Federal Government, and adopted or acquiesced in by them, they may afterward alter or abolish it at pleasure. Although the government of a territory has not the same sovereign power as the government of a State in its political relations, the people of a territory have, in all that appertains to their internal condition, the same sovereign rights as the people of a State....