On May 12, 2009, hundreds of Immigration Customs and Enforcement (ICE) raided Agriprocessors, a meat packing plant in the sleepy town of Postville, Iowa, and arrested 389 workers. These workers, primarily Spanish speaking immigrants from Guatemala and Mexico, were charged with felony aggravated identity theft. This criminalization of immigration is a critical point in immigration policy in the United States, representing a ritual performance of the exclusion of immigrants from American society. In stark juxtaposition to the raid itself, the community of Postville was working to welcome the very immigrants that were targeted by ICE. In attempts at inclusion, Postville had created an adult soccer league that provided a sense of community and identity for immigrants. Using the classic anthropological method of ethnography, this research draws on extensive time immersed in the community of Postville to conduct a qualitative case study of the day-to-day meanings of immigration in the United States. This dissertation examines the adult soccer league and the ICE raid as examples of cultural performances of inclusion and exclusion by using anthropological concepts of nation, sport, and performance. Performance is used to mark national identity in both instances--a shifting, hybrid `transnational' identity in the case of the immigrants playing in the soccer league--and a clearly delineated `American' identity in the case of the ICE raid. Moreover, national identity is tied to other aspects of identity, such as gender. As the performances create national `imagined communities,' they also gender their participants and nations themselves. Ultimately this reveals the way that immigration itself is gendered, and the way in which American immigration policy is designed to promote an American national identity. These efforts are not only to the detriment of immigrants in the United States as laborers but also to the communities with jobs that draw these workers. The case study of Postville provides a lens to examine the meanings of immigration policy from the ground up and in the lives of those it impacts most--immigrants and the communities in which they reside.