According to Stephen Macedo, ‘[liberal], democratic politics is not only about individual rights and limited government, it is also about justification… political justification… understood politically.’ ‘Political justification,’ he asserts, ‘is a core liberal goal.’ Gerald Gaus, similarly, writes that the ‘idea of public justification is at the heart of a contractual liberalism.’ Very many other contemporary political philosophers believe that the politics of a liberal polity must be justifiable to its Citizens. In what follows I shall seek to understand the basis for such a belief and, in particular, to expose two possible sources in the views of Locke and Kant. Neither source, I shall argue, provides any warrant for the demand in question. First the bald claim — that the politics of a polity needs justifying — must be unpacked. By way of initial clarification I shall say something about, respectively, ‘justification’ and ‘politics.’