Abstract

So-called 'realists' have argued that political philosophers should engage with real politics, but that mainstream 'non-realist' political philosophers fail to do so. Perhaps surprisingly, many of the discussions between realists and their critics have not drawn much on debates in metaethics. In this paper, I argue that this is an oversight. There are important connections between the realism/non-realism debate and certain controversies in metaethics. Both realism and non-realism come with metaethical baggage. By considering several arguments that could be made for and against both positions, each of which rests on contested views about the metaphysics and epistemology of value, I outline exactly which metaethical claims realists and nonrealists must defend in order to make their position tenable.