This view of the Constitution has been rejected by the federal courts, which consistently have held that under the Constitution, the states do not have the power to nullify federal laws. The courts have rejected the compact theory, finding that the Constitution was not a contract among the states.
A U.S. Border Patrol agent in San Diego has been arrested for hiding his undocumented father and other people in the U.S. illegally.
Illegal immigration to the United States is the act by foreign nationals violating United States immigration laws by either entering the country without government permission (i.e., a visa) or after being lawfully admitted, remaining within the country beyond their period of authorized admission as a non-immigrant.