The American Civil Liberties Union of Arizona has released thousands of e-mails that it says proves Arizona's controversial immigration law was racially motivated.

The e-mails, acquired through a public records request to the state Legislature, are to and from former senator Russell Pearce, who authored Senate Bill 1070.

The ACLU included dozens of those e-mails as part of a legal filing this week, asking U.S. District Court Judge Susan Bolton to prevent a key part of SB 1070 from going into effect.

The e-mails from Pearce in the court documents include statements like, "Can we maintain our social fabric as a nation with Spanish fighting English for dominance ... It's like importing leper colonies and hope we don't catch leprosy. It's like importing thousands of Islamic jihadists and hope they adapt to the American Dream."