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.
No matter how the Bush administration and Congress act on illegal immigration in the US, any legislation or executive order is unlikely to answer the question: How many immigrants living in the country today are here illegally? Depending on the source, the numbers range widely - from about 7 million up to 20 million or more.