... Jefferson, ever adopted this understanding of emergency power. And even Jefferson, who frankly admitted that actions like the Louisiana Purchase were unconstitutional, did not suspend the Constitution to execute ... have the prerogative ... Constitutional democracy is at once a flourishing idea filled with optimism and promise--and an enterprise fraught with limitations. Uncovering the reasons for this ambivalence, this book looks at the difficulties of constitutional democracy, and reexamines fundamental questions: What is constitutional democracy? When does it succeed or fail? Can constitutional democracies conduct war? Can they preserve their values and institutions while addressing new forms of global interdependence? The authors gathered here interrogate constitutional democracy's meaning in order to illuminate its future. The book examines key themes--the issues of constitutional failure; the problem of emergency power and whether constitutions should be suspended when emergencies arise; the dilemmas faced when constitu