Alien and Sedition Laws.
A series of Acts of Congress passed in 1798, to deal with the situation caused by the residence in the United States of a large number of naturalized Frenchmen who sympathized with France in the difficulties then pending between the two countries. They gave the President the power to banish undesirable aliens. They were very unpopular, and were, in fact, never enforced with any stringency, but are noticeable as having led to the first declaration of States Rights, Kentucky and Virginia declaring them unconstitutional.