File photo of demonstrator against the state's Senate Bill 1070 immigration law holding a US flag in Phoenix

 
File photo of demonstrator against the state
A demonstrator against the state's Senate Bill 1070 immigration law holds a U.S. flag in Phoenix, Arizona in this April 25, 2012 file photo. As the U.S. Supreme Court readies a decision on Arizona's tough immigration law, the consensus among advocates on both sides is that at least part of the measure will be upheld. If that happens, a separate pending case might block the law from taking effect. Picture taken April 25, 2012. REUTERS/Eric Thayer/Files (UNITED STATES - Tags: POLITICS CIVIL UNREST)