When hundreds of Border Patrol agents came to Chicago to carry out warrantless arrests and racialized sweeps, Illinoisans mobilized to protect their neighbors and document abuses. But the response from Chicago and its suburban neighbors did not begin with the raids. It was built through decades of organizing, relationship building, and community infrastructure. As immigration enforcement continues to evolve, this panel explores what Chicago’s experience offers organizers confronting expanding state repression and building collective power in their own communities.