Wisconsin
| Feingold, Russell D. - (D – WI) | Class III |
| 506 HART SENATE OFFICE BUILDING WASHINGTON DC 20510 | |
| (202) 224-5323 | |
| e-Mail Senator: feingold.senate.gov/contact_opinion.html | |
| Kohl, Herb - (D – WI) | Class I |
| 330 HART SENATE OFFICE BUILDING WASHINGTON DC 20510 | |
| (202) 224-5653 | |
| e-Mail Senator: kohl.senate.gov/contact.cfm | |
