Six recent books argue that a new narrative, or a new European political project, or an institutional revolution, is exactly what Europe needs. It’s not hard to understand why. The continent is plagued by crises that cannot be solved by any one European nation acting on its own: the arrival of millions of migrants, the rise of terrorism, the spread of international corruption, the imbalances created by the single currency, the high youth unemployment in some regions, the challenge from a revanchist Russia. At the same time, Europe, like the American states before they adopted the Constitution in 1789, still has no political mechanisms that can create joint solutions to any of these problems. A common European foreign and defense policy is still a pipe dream; a common border is difficult to enforce; a common economic policy is still far away.