This course surveys immigration and citizenship law in the United States. The core issues at stake in this course - the boundaries of political membership and the systems for managing migrant populations - play a significant role in many areas of the law and present fundamental challenges to the United States in the twenty-first century. We will examine the entry, presence, expulsion, and naturalization of noncitizens, and the content and significance of U.S. citizenship and nationality, from a variety of perspectives: historical and contemporary; procedural and substantive; constitutional, statutory, and regulatory. Specific topics will include Congress; plenary power over immigration; the interaction between immigration and federalism; the constitutional rights of noncitizens; the criteria for the admission of noncitizens on a temporary or permanent basis; the grounds for exclusion and deportation; the rules governing adjustment of status; the law governing refugees and asylum; and the ongoing Comprehensive Immigration Reform debate. Throughout the course, we will consider the major theoretical questions underlying immigration law: What are the different ways of defining citizenship? What defines membership in a political community? How should the rights of citizens and non-citizens differ? Should our conceptions of citizenship and membership change in an age of substantial migration and globalization? When is it appropriate to force non-citizens to leave the United States? Are there any moral constraints on the state's interest in controlling its borders? How does immigration law intersect with the United State's role/power in the world? The required textbook for this course is T. ALEXANDER ALEINIKOFF ET AL., IMMIGRATION AND CITIZENSHIP: PROCESS AND POLICY (7th ed. 2012), along with the accompanying statutory supplement, ALEINIKOFF ET AL., IMMIGRATION AND NATIONALITY LAWS OF THE UNITED STATES: SELECTED STATUTES, REGULATIONS AND FORMS (2014). Additional material will be posted on Canvas (CN).