As organizing campaigns in New York City show, migrant workers are indispensable to the revitalization of the labor movement. As employers turn to migrant labor to fill low-wage jobs, unions must encourage and support organizing drives that emerge from the oppressive conditions of work. As the 1930s workers’ movement demonstrates, if conditions improve for immigrants, all workers will prosper. To gain traction, unions must recognize that capital is pitting migrant workers against native-born laborers to lower wages and improve profitability. Although unions have had some success organizing immigrants, most are circling the wagons, disinterested in building a more inclusive mass labor movement. The first step is for unions to go beyond rhetoric and form a broad and inclusive coalition embracing migrant workers.