(Formerly Friendly House et al. v. Whiting). The U.S. Supreme Court has upheld the most hotly disputed part of Arizona's anti-immigrant law, S.B. 1070, which requires police to determine the immigration status of someone arrested or detained when there is "reasonable suspicion" they are not in the U.S. legally. The ACLU, along with a coalition of civil rights organizations, will continue to challenge the Arizona law on other constitutional grounds.

Passed in July 2006 by the Board of Alderman of the City of Valley Park, Mo., the town’s “Illegal Immigration Relief Act Ordinance” seeks to punish landlords who rent to and business owners and employers who hire undocumented workers. The law also seeks to make English the official language of the city.

The “Riverside Township Illegal Immigration Relief Act” attempted to ban undocumented immigrants from renting, residing, using property or being employed in the New Jersey town.

Passed in December 2006, by the Board of Commissioners in Cherokee County, Ga., Ordinance 2006-003 seeks to remove individuals defined as “illegal aliens” from the county by penalizing anyone, including landlords, who allow such individuals to occupy any dwelling.