These people are at the heart of this reinterpretation of one of the most crucial events of the twentieth century. Shlaes also traces the mounting agony of the New Dealers themselves as they discovered their errors. She shows how both Hoover and Roosevelt failed to understand the prosperity of the 1920s and heaped massive burdens on the country that more than offset the benefit of New Deal programs. The real question about the Depression, she argues, is not whether Roosevelt ended it--it is why it lasted so long.--From publisher description.