Project Solidarity is a four-year, two-sited, mixed methods research project consisting of long-term community engagement, as well as semi-structured interviews with deportees, their family members, anti-deportation organizers, and deportee-rights organizers. The goals of the project are to: 1. understand US-based mechanisms of immigrant policing, detention, and deportation, especially from "sanctuary" zones; 2. identify urgent needs of recently arrived deportees in Mexico City; 3. explore mid- and long-term challenges to reintegration for deportees in Mexico; 4. expand binational networks of information, advocacy, and resource-sharing; 5. Inform and assist local immigrant and deportee rights efforts in Chicago and Mexico City.