senate_polls: 1456
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1456 | 129593 | 69560 | 2020 | Iowa | 437 | Selzer & Co. | 52,613 | Des Moines Register | Mediacom | Selzer & Co. | 304 | Selzer & Co. | A+ | 658 | lv | lv | Live Phone | U.S. Senate | 0 | Class II | 9/14/20 | 9/17/20 | 11/3/20 | 0 | 0 | 0 | 9/19/20 19:01 | https://assets.documentcloud.org/documents/7213769/Senate-Story-2224-Iowa-Poll-Sep-2020-Methodology.pdf | general | 6272 | Greenfield | 13466 | Theresa Greenfield | DEM | 45.0 |