Arizona

The Obama administration has not always been completely clear about its immigration agenda, but it was forthright Tuesday when it challenged the pernicious Arizona law that allows the police to question the immigration status of people they detain for local violations. Only the federal government can set or enforce immigration policy, the government said in its lawsuit against the state, and "Arizona has crossed this constitutional line." - New York Times

Oh, really? Then why did the U. S. Congress authorize and continue to fund the Law Enforcement Support Center? The LESC fielded over 500,000 (five hundred thousand) calls from local law enforcement authorities in all fifty states in 2005 (the last year for which records are available) regarding the immigration status of detainees.

The New York Times continues as mouthpiece for the Obama administration.

Furthermore, the state of Arizona has had three illegal immigration laws upheld in federal court including the ultra-liberal ninth circuit. The states do, it has been held, have an interest in enforcing federal immigration law even if the federal government does not.

http://www.ice.gov/partners/lesc/index.htm