A growing chorus of scholars laments the apparent decline of political participation in America, and the negative implications of this trend for American democracy. This article questions this position – arguing that previous studies misdiagnosed the sources of political change and the consequences of changing norms of citizenship for Americans’ political engagement. Citizenship norms are shifting from a pattern of duty-based citizenship to engaged citizenship. Using data from the 2005 ‘Citizenship, Involvement, Democracy’ survey of the Center for Democracy and Civil Society (CDACS) I describe these two faces of citizenship, and trace their impact on political participation. Rather than the erosion of participation, this norm shift is altering and expanding the patterns of political participation in America.