Escondido, California (near San Diego) is one of the cities that have passed "Hazleton-style" ordinances, and that's resulted in a predictable legal challenge from various far-left, illegal immigration-supporting non-profit organizations. In this case it's a "coalition" including:
...the American Civil Liberties Union (ACLU), the Fair Housing Council of San Diego, the Mexican American Legal Defense and Educational Fund (MALDEF), and People For the American Way (PFAW), is challenging the anti-immigration ordinance passed by the Escondido City Council on October 18 which bans renting an apartment to undocumented residents. The coalition also includes the private law firms of Rosner & Mansfield LLP and Cooley Godward Kronish LLP.
According to this, it's only the ACLU's San Diego chapter. But, the above implies that it's the national ACLU, and note that an earlier warning letter was signed by Omar Jadwat and Jenny Chang of the ACLU Foundation's "Immigrants' Rights Project". There are questions and biased answers about the ordinance here.
While you won't read it in any of the papers, the ACLU's San Diego chapter, MALDEF, and other groups are in a coalition with three groups that are openly collaborating with the Mexican government.
Immigration · Fri, 11/03/2006 - 13:00 · Importance: 1