senate_polls: 367
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 367 | 135893 | 72420 | 2020 | Iowa | 437 | Selzer & Co. | 52,613 | Des Moines Register | Mediacom | Selzer & Co. | 304 | Selzer & Co. | A+ | 814 | lv | lv | Live Phone | U.S. Senate | 0 | Class II | 10/26/20 | 10/29/20 | 11/3/20 | 0 | 0 | 0 | 10/31/20 19:12 | https://www.desmoinesregister.com/story/news/politics/iowa-poll/2020/10/31/election-2020-iowa-poll-greenfield-ernst-us-senate-race-voters/6055545002/ | general | 6272 | Greenfield | 13466 | Theresa Greenfield | DEM | 42.0 |