Introduction / Gabriel J. Chin and Carissa Byrne Hessick -- Measuring the climate for immigrants : a state-by-state analysis / Huyen Pham and Pham Hoang Van -- How Arizona became ground zero in the war on immigrants / Douglas S. Massey -- "A war to keep alien labor out of Colorado" : the "Mexican menace" and the historical origins of local and state anti-immigration initiatives / Tom I. Romero II -- Reinforcing the rule of law : what states can and should do to reduce illegal immigration / Kris W. Kobach -- The states enter the illegal immigration fray / John C. Eastman -- Broken mirror : the unconstitutional foundations of new state immigration enforcement / Gabriel J. Chin and Marc L. Miller -- The role of states in the national conversation on immigration / Rick Su -- Post-racial proxy battles over immigration / Mary Fan