Civil rights groups file lawsuit seeking to block Texas law allowing cops to arrest illegal migrants

A coalition of civil rights groups filed a lawsuit seeking to block parts of a Texas law that allows police officers to arrest migrants suspected of crossing into the U.S. illegally. The law is set to take effect next week and would establish a state-level crime for entering the country illegally. The groups argue that the law is unconstitutional and that immigration law is exclusively the responsibility of the federal government.