In this state-of-the-art textbook, a distinguished team of established experts and rising scholars discuss the legacy of the Obama years and the impact of the unexpected Trump presidential victory of 2016. Carrying on the tradition set by its predecessors of incisive, authoritative and up-to-date coverage, this eighth volume explores the policy dilemmas faced by the Trump administration, as well as the doubts over the efficiency of America's key political institutions, its policy-making processes and the operation of its democracy. Carefully balancing contemporary topics with in-depth analysis of their underlying processes and historical roots, this is essential reading for all students and researchers in the field of American government and politics. Moreover, as issues such as race, religion, and law and order become ever more politicized, it will be highly valuable for those interested in American society more generally.