The Impact of the New Deal on American Federalism

John J. Wallis and Wallace Oates, The Defining Moment: The Great Depression and the American Economy in the Twentieth Century (University of Chicago Press, 1998), chap. 5, https://www.nber.org/books-and-chapters/defining-moment-great-depression-and-american-economy-twentieth-century/impact-new-deal-american-federalism.