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 ALIEN: An illegal alien is a foreigner who (1) does not owe allegiance to our country; and (2) who has violated our laws and customs in establishing residence in our country. He or she is therefore a criminal under applicable U.S. laws.