senate_polls: 250
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 250 | 136520 | 72741 | 2020 | Iowa | 1515 | Data for Progress | Data for Progress | 522 | Data for Progress | B | 951 | lv | lv | Online/Text | U.S. Senate | 0 | Class II | 10/27/20 | 11/1/20 | 11/3/20 | 0 | 0 | 0 | 11/2/20 20:41 | https://filesforprogress.org/datasets/2020/11/2020-election-polls/toplines/dfp_ia_11.2.20.pdf | general | 6272 | Greenfield | 13466 | Theresa Greenfield | DEM | 49.0 |