Sustained Mobilization for Immigrant Rights: A Comparative Case Study of the San Joaquin Valley

The national immigrant rights campaign of 2006 stands as one of the largest mobilizations by people of color in US history, yet less scholarly attention has been given to systematically comparing these mobilizations at the local level. To develop an understanding of what led to sustained mobilization, a comparative case study analysis of seven cities in California's San Joaquin Valley is employed. The empirical evidence is based on interviews with key organizers and participants, newspaper documentation of protest events, census data, and other secondary sources. I find that the presence and size of policy threats explained the initial protest during the spring of 2006 in all localities, but cities with elaborate resource infrastructures (preexisting organizations, histories of community organizing, and coalitions) had more enduring levels of collective action.