| Dems sweep | No | 942 | Not graded | — |
| Dems win Gov, Reps win Senate | No | 942 | Not graded | — |
| Reps sweep | No | 942 | Not graded | — |
| Reps win Gov, Dems win Senate | No | 942 | Not graded | — |
| Other | No | 942 | Not graded | — |
| Dems sweep | No | 714 | Not graded | — |
| Dems win Gov, Reps win Senate | Yes | 711 | Not graded | — |
| Dems sweep | Yes | 639 | Not graded | — |
| Dems sweep | Yes | 437 | Not graded | — |
| Dems sweep | Yes | 400 | Not graded | — |
| Other | Yes | 358 | Not graded | — |
| Reps sweep | Yes | 351 | Not graded | — |
| Dems sweep | No | 284 | Not graded | — |
| Dems sweep | Yes | 241 | Not graded | — |
| Dems win Gov, Reps win Senate | Yes | 241 | Not graded | — |
| Reps sweep | Yes | 219 | Not graded | — |
| Reps win Gov, Dems win Senate | Yes | 219 | Not graded | — |
| Dems win Gov, Reps win Senate | No | 200 | Not graded | — |
| Reps win Gov, Dems win Senate | Yes | 176 | Not graded | — |
| Reps sweep | Yes | 172 | Not graded | — |
| Reps win Gov, Dems win Senate | Yes | 155 | Not graded | — |
| Dems sweep | Yes | 150 | Not graded | — |
| Reps win Gov, Dems win Senate | Yes | 145 | Not graded | — |
| Dems sweep | No | 140 | Not graded | — |
| Reps sweep | No | 124 | Not graded | — |