the U.S. government. Since the presidency of George W. Bush, when advocates of executive power such as Dick Cheney gained ascendancy, the argument has blazed hotter than ever. Many argue the Constitution itself is in grave danger. What is to be done? The answer, according to legal scholars Eric Posner and Adrian Vermeule, is nothing. In The Executive Unbound, they provide a bracing challenge to conventional wisdom, arguing that a strong presidency is inevitable in the modern world. Most scholars, they note, object to today's level of executive power because it varies so dramatically from the vision of the framers. But there is nothing in our system of checks and balances that intrinsically generates order or promotes positive arrangements. In fact, the greater complexity of the modern world produces a concentration of power, particularly in the White House. The authors chart the rise of executive authority straight through to the Obama presidency. Political, cultural and social restraints, they argue, have been more effective in preventing dictatorship than any law. The executive-centered state tends to generate political checks that substitute for the legal checks of the Madisonian constitution.

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