On the same Subject. -- 1799.
From a Report of Congress. -- "The right of removing aliens, as incident to the power of war and peace, according to the theory of the Constitution, belongs to the government of the United States. By the 4th section of the 4th article of the Constitution, Congress is required to protect each state from invasion; and is vested by the 8th section of the 5th article with powers to make all laws which shall be proper to carry into effect all powers vested by the Constitution in the government of the United States, or any department or officer thereof; and, to remove from the country, in times of hostility, dangerous aliens, who may be employed in preparing the way for invasion, is a measure necessary for the purpose of preventing invasion, and, of course, a measure it is empowered to adopt."
In relation to the sedition act, the committee report that "punish false, scandalous, and malicious writings against the government, with intent to stir up sedition, is a law necessary for carrying into effect the power vested by the Constitution in the government of the United States, and in the officers and departments thereof, and, consequently, such a law as Congress may pass."
Further -- "Although the committee believe that each of the measures [alien and sedition laws] adopted by Congress is susceptible of an analytical justification, on the principles of the Constitution and national policy, yet they prefer to rest their vindication on the same ground of considering them as parts of a general system of defence, adapted to a crisis of extraordinary difficulty and danger."
[See Virginia and Kentucky Resolutions of '98, at the end of this volume.]