Politics, Relief, and Reform. Roosevelt's Efforts to Control Corruption and Political Manipulation during the New Deal

John J. Wallis, Price V. Fishback, and Shawn E. Kantor, Corruption and Reform: Lessons from America's Economic History (University of Chicago Press, 2006), chap. 11, https://www.nber.org/books-and-chapters/corruption-and-reform-lessons-americas-economic-history/politics-relief-and-reform-roosevelts-efforts-control-corruption-and-political-manipulation-during.