Louisiana Tech graduates have been influential through public service and activism. Former United States Senators James P. Pope and Saxby Chambliss and United States Representatives Newt V. Mills, Joe Waggonner, Jim McCrery, and Rodney Alexander all attended Louisiana Tech. In addition, James P. Pope served as director of the Tennessee Valley Authority. Louisiana Tech alumnus Clint Williamson served as United States Ambassador-at-Large for War Crimes Issues. Many notable military leaders are Louisiana Tech alumni including lieutenant general David Wade, lieutenant general John Spencer Hardy, major general Susan Y. Desjardins, and major general Jack Ramsaur II. Alumna Kim Gandy served as president of the National Organization for Women, and alumnus Jerome Ringo served as chairman of the National Wildlife Federation.