This article explores issues associated with schooling and political justice. Such issues are understood in light of the contention surrounding how Western schooling contexts might best represent marginalised groups--in ways that accord them a political voice. The significance of group identity politics is explored drawing on international debates associated with ethnically segregated schooling. A postcolonial theorising of group identity highlights the ways in which segregated schooling can both support and undermine politically just representation for marginalised students. This theorising draws attention to the problematic notion of voice in linking representation to identity in reductionist ways. The arguments presented point to the significance of people and their politics, rather than their membership to a particular identity group, in pursuing equity for marginalised groups. The article argues the imperative of understanding group identity as an aspect of negotiated social practice that can be drawn on in strategic and critical ways to address matters of political injustice.