Skip to main content
Wednesday, November 11, 2026Nov 11

Feds sue to block Arizona illegal immigrant law

BOB CHRISTIE

Associated Press Writer

PHOENIX – The U.S. Justice Department on Tuesday filed a lawsuit challenging the constitutionality of Arizona’s new law targeting illegal immigrants, setting the stage for a clash between the federal government and the state over the nation’s toughest immigration crackdown.

The lawsuit filed in U.S. District Court in Phoenix argues that Arizona’s law requiring state and local police to question and possibly arrest illegal immigrants during the enforcement of other laws such as traffic violations usurps federal authority.

“In our constitutional system, the federal government has pre-eminent authority to regulate immigration matters,” the lawsuit says. “This authority derives from the United States Constitution and numerous acts of Congress. The nation’s immigration laws reflect a careful and considered balance of national law enforcement, foreign relations, and humanitarian interests.”