| Business | Phone |
| Harkin Campaign Office Cedar Rapids 52402 | (319) 363-9484 |
| League Of Women Voters 318 5th St Se, Cedar Rapids 52401 | (319) 366-0674 |
| Linn County Democrats 216 3rd St Se 423, Cedar Rapids 52401 | (319) 362-6275 |
| Linn County Gop 118 3rd Ave Se, Cedar Rapids 52401 | (319) 362-9410 |