“[D]istinguished scholars offer reflections on the past struggles and accomplishments of left-leaning parties in Europe and the United States and speculate about their future. . . . The book makes the important point that as advanced societies navigate the current moment of global economic uncertainty, liberals and social democrats have a new opportunity to regroup and rethink policies that promote economic security and social justice.” - G. John Ikenberry (Foreign Affairs) “This book provides a timely update of much of this literature… that will be of particular use to students seeking to get up to speed with the empirical and historical development of social democracy in these particular concrete contexts. Most of the chapters also bring this concrete discussion further up to date than it currently is in most other existing literature on social democratic parties.” - David Bailey (West European Politics) "In addition to its historical scope, What’s Left sets itself apart from the rest of its genre by including three chapters on the U.S. (regarding the Democratic Party’s evolving coalition, the American welfare state, and U.S. trade policy), making the point that the experiences of the American and European lefts are similar enough that the 'Democrats and social democrats' of the book’s subtitle have much to learn from one another." - Geoffrey Kurtz (Logos)