Korzi, Michael J., "William Howard Taft, the 1908 Election, and the Future of the American Presidency," Congress and the Presidency, 43 (May–August 2016), 227–54. Mowry, George E. The Era of Theodore Roosevelt, 1900-1912 (1958). online Sarasohn, David. The Party of Reform: Democrats in the Progressive Era (UP of Mississippi, 1989), 35–58.
Korzi, Michael J, "William Howard Taft, the 1908 Election, and the Future of the American Presidency," Congress and the Presidency, 43 (May–August 2016), 227–54. Mowry, George E. The Era of Theodore Roosevelt, 1900-1912 (1958). online Sarasohn, David. The Party of Reform: Democrats in the Progressive Era (UP of Mississippi, 1989), 35–58.