The new book, titled American Grand Strategy under Obama: Competing Discourses (EUP, 2017) examines the breakdown of the elite consensus on America's role in the world. The book explores competing discourses of national security and foreign policy under the Obama presidency, and how the Obama Doctrine posed a practical challenge to the established elite consensus on American exceptionalism and liberal hegemony by emphasising military restraint and 'leading from behind. It argues that under Obama, American grand strategy no longer represented a coherent and consistent equation of material resources and political ends, but a contested discursive space, where identity and policy no longer matched up.