Should it be a crime to cross the border into the United States? This forthcoming article is the first to explore the growing resistance to the politics and practices of border criminalization. In doing so, it makes three central contributions. First, it dissects the varied strands of the punitive practices of prosecutors in the United States Department of Justice—including policies of zero-tolerance for first-time border crossers and enhanced punishments for those who reenter after deportation. Second, it traces how growing controversy surrounding the project of criminalizing migration has sparked a new era of resistance to federal enforcement practices that have resulted in the forced separation of families, interfered with the rights of asylum seekers, and fostered a segregated and substandard court process. Third, it analyzes the nascent movement to repeal the federal law that criminalizes border crossing and sketches how this proposed legislative reform would reconstitute border crossing as a civil, rather than criminal, violation of the immigration law. As this project reveals, ending criminal punishment for border crossing would have important implications for the structure of immigration law, including preserving rights to affirmative relief from deportation and fostering the development of a more graduated system for civil penalties.