draws attention to comparisons between California and other states in their provision of immigrant citizenship rights. The authors start with the border dividing California and Arizona, two states that lie on opposite ends of the spectrum with respect to progressive and regressive state citizenship, respectively. And yet, Arizona is not the only exclusionary state with respect to immigrant rights today. Indeed, the authors’ analysis reveals that Alabama is about as exclusionary as Arizona and that states like Georgia and Tennessee are close behind in their exclusionary laws on immigrant state citizenship. In this chapter, the authors situate various states along a continuum from the most inclusive to the most exclusionary with respect to each of five dimensions of citizenship rights. They also conduct a fifty-state quantitative analysis to identify the reasons why some states have proceeded farther than others in the development of progressive state citizenship.