We do not mean, however, to question the power of Congress in this respect. The power to expand the territory of the United States by the admission of new States is plainly given; and in the construction of this power by all the departments of the Government, it has been held to authorize the acquisition of territory, not fit for admission at the time, but to be admitted as soon as its population and situation would entitle it to admission. It is acquired to become a State, and not to be held as a colony and governed by Congress with absolute authority; and as the propriety of admitting a new State is committed to the sound discretion of Congress, the power to acquire territory for that purpose, to be held by the United States until it is in a suitable condition to become a State upon an equal footing with the other States, must rest upon the same discretion. It is a question for the political department of the Government, and not the judicial; and whatever the political department of the Government shall recognise as within the limits of the United States, the judicial department is also bound to recognise, and to administer in it the laws of the United States, so far as they apply, and to maintain in the Territory the authority and rights of the Government, and also the personal rights and rights of property of individual citizens, as secured by the Constitution. All we mean to say on this point is, that, as there is no express regulation in the Constitution defining the power which the General Government may exercise over the person or property of a citizen in a Territory thus acquired, the court must necessarily look to the provisions and principles of the Constitution, and its distribution of powers, for the rules and principles by which its decision must be governed.