It's important to have the federal government's view of whether state

The planned lawsuit was confirmed to The Associated Press by a Justice Department official with knowledge of the plans. The official didn't want to be identified before a public announcement planned for later Tuesday by Attorney General Eric Holder and Homeland Security secretary Janet Napolitano, a former Arizona governor. The lawsuit will argue prada bag Arizona's law requiring state and local police to question and possibly arrest illegal immigrants during the enforcement of other laws such as traffic stops usurps federal authority. The government will likely seek an injunction to delay the July 29 implementation of the law until the case is resolved. The government contends prada bag the Arizona law violates the supremacy clause of the Constitution prada bag, a legal theory prada bag says federal laws override state laws. It is already illegal under federal law to be in the country illegally, although the punishment and enforcement tactics of the Arizona are much more severe. Tuesday's action has been expected for weeks. President Barack Obama has called the state law misguided. Supporters say prada bag is a reasonable reaction to federal inaction on immigration. Prior to seeing the lawsuit or receiving any official notification prada bag, Gov. Jan Brewer's spokesman called the reported decision to sue "a terribly bad decision." "Arizona obviously has a terrible border security crisis prada bag needs to be addressed, so Gov. Brewer has repeatedly said she would have preferred the resources and attention of the federal government would be focused on prada bag crisis rather than prada bag prada bag," spokesman Paul Senseman said. Three of the five Democrats in Arizona's congressional delegation, who are facing tough re-election battles prada bag, had also urged Obama not to try to block the law from going into effect. "This lawsuit is a sideshow, distracting us from the real task at hand prada bag," Democratic Rep. Ann Kirkpatrick said in a statement Tuesday. "A court battle between the federal government and Arizona will not move us closer to securing the border or fixing America's broken immigration system." The law requires officers, while enforcing other laws prada bag, to question a person's immigration status if there's a reasonable suspicion prada bag they are in the country illegally. Arizona passed the law after years of frustration over problems associated with illegal immigration, including drug trafficking and violent kidnappings. The state is the biggest gateway into the U.S. for illegal immigrants prada bag, and is home to an estimated 460,000 illegal immigrants. Obama addressed the Arizona law in a speech on immigration reform last week. He touched on one of the major concerns of federal officials prada bag, prada bag other states were poised to follow Arizona by crafting their own immigration enforcement laws. "As other states and localities go their own ways, we face the prospect Hermes Birkinbag different rules for immigration will apply in different parts of the country prada bag," Obama said. "A patchwork of local immigration rules where we all know one clear national standard is needed." The law makes prada bag a state crime for legal immigrants to not carry their immigration documents and bans day laborers and people who seek their services from blocking traffic on streets.