Political Reform Progressive By Breonna03 1904 John D. Rockefeller's ruthless business practices! Exposés such as Lincoln Steffens' The Shame of the Cities, an attack on municipal corruption. 1904 John D. Rockefeller's ruthless business practices,CONT! Ida Tarbell's History of the Standard Oil Company! 1912 Bull Moose Party Progressives formed their own political party!