Since its initial publication in 1992, the book has been adopted at 183 U.S. law schools. It mixes theory, policy, and politics with practice-oriented materials that deal in doctrine, planning, and problem-solving. Legomsky and Rodríguez make heavy use of policy analysis, fact problems, and simulation exercises. The new edition incorporates the sweeping changes of the past five years. Highlights include: Discussion of DACA and the dramatic November 2014 executive actions Analysis of the legal limits and policy implications of prosecutorial discretion and other Obama Administration executive actions Discussion of comprehensive legislative immigration reform efforts, including S.744 A new section on vulnerable children, addressing UAC, special immigrant juveniles, child asylum issues, and children's use of T and U visas, with specific discussion of the current Central American UAC issues and 2014 opinion of the Inter-American Court A completely re-written section on same-sex marriages, to reflect Windsor, Zeleniak, and Administration implementation initiatives Entirely rewritten section on asylum claims based on particular social group, to reflect the recent BIA decisions in M-E-V-G- and W-G-R- (concerning the social distinction and particularity requirements), the BIA's 2014 landmark domestic violence decision in A-R-C-G-, and related developments on gender-based asylum claims A completely rewritten section on crimmigration generally, the crime-related deportability grounds, and the categorical and modified categorical approaches, to reflect the Supreme Court's recent decisions in Moncrieffe and Descamps, lower court decisions such as Silva-Trevino, and the 2014 BIA decision in Dominguez-Rodriguez The addition of an extended section on federalism and Arizona v. United States in chapter 2 (constitutional foundations), the creation of a new chapter on enforcement that includes discussion of Secure Communities (now PEP), 287(g), non-cooperation laws, and detention, and a reorganization and streamlining of chapter 12 (undocumented immigrants), to accommodate these changes New developments on in-state tuition for undocumented students New developments on drivers' licenses for undocumented residents New material on advance parole, Arrabally, 601A provisional unlawful presence waivers, and parole in place MAVNI renewal and extension to DACA recipients New developments on Padilla New avenues for representation for low-income immigrants and refugees The Supreme Court's Cuellar de Osorio decision on the Child Status Protection Act New developments on EB-5, particularly with respect to regional centers Material concerning work permits for H-4 nonimmigrants New material on the Adam Walsh Act Discussion of dramatic increases in credible fear interviews and Administration responses Discussion of the asylum clock litigation and its effect on work authorization Material on FOIA litigation involving asylum officer interview notes Important recent court decisions on temporary protected status New developments on in-country renunciation of U.S. citizenship Discussion of assisted reproductive technology (ART) and its effects on both immigration and citizenship law