- William T. Spitz
- Susan Ashby
- Carol J. Summerfield
- Angie Crouse
- Center for Responsive Politics
- Teresa Aubele
- Thomas C. Steinmetz
- Hoover's
- Gary R. Evans
- Deborah Freundlich
- Sonya E. King
- Dana Graves
- Alex Chase
- Henry G. Liebman
- Marcia L. Williams
- Orlando J. Antonini
- Casey Collay
- Gladys Alesi
- William E. Hopke
- Doug Freeman