Numerous US cities, and recently the first Canadian city, Toronto, have become “sanctuary cities” by adopting municipal policies to provide non-status immigrants with access to municipal services without having to fear detention and deportation. These policies have been widely praised as an important step towards equality and social justice for illegalized immigrants. While many of the activists and NGOs involved in campaigning for the sanctuary city are driven by practical considerations, Canadian activists are grounding their efforts in open-border and no-border politics. This poster examines sanctuary city, open-borders, and no-border arguments, and explores the material and ontological conditions under which these ideas may be possible.