senate_polls: 420
| rowid | question_id | poll_id | cycle | state | pollster_id | pollster | sponsor_ids | sponsors | display_name | pollster_rating_id | pollster_rating_name | fte_grade | sample_size | population | population_full | methodology | office_type | seat_number | seat_name | start_date | end_date | election_date | sponsor_candidate | internal | partisan | tracking | nationwide_batch | ranked_choice_reallocated | created_at | notes | url | stage | race_id | answer | candidate_id | candidate_name | candidate_party | pct |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 420 | 136599 | 72794 | 2020 | South Dakota | 340 | Nielson Brothers Polling | Nielson Brothers Polling | 231 | Nielson Brothers Polling | C/D | 479 | lv | lv | IVR | U.S. Senate | 0 | Class II | 10/24/20 | 10/28/20 | 11/3/20 | 0 | 0 | 0 | 11/2/20 22:47 | https://www.southdacola.com/blog/2020/11/survey-nielson-brothers-polling-nbp-statewide-survey-october-24-28-2020/ | general | 6293 | Rounds | 15672 | M. Michael Rounds | REP | 56.0 |