A pdf is available by request to jmheyman@utep.edu . A synthetic essay that examines how anti- and pro-immigrationism in U.S. history concerns "circles of membership" and as such forms part of wider social-political struggles over major axes of inequality. Covers national origin, race and ethnicity, gender and sexual preference, class, religion, and political opinion. Struggles with respect to arriving people as well as internal rights struggles are fundamental to the construction of political community and subjects of history.