senate_polls: 4342
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4342 | 83196 | 52655 | 2018 | North Dakota | 289 | Mason-Dixon Polling & Strategy | 947 | Valley News Live | Mason-Dixon Polling & Strategy | 197 | Mason-Dixon Polling & Strategy | A- | 625 | rv | rv | U.S. Senate | 0 | Class I | 6/13/18 | 6/15/18 | 11/6/18 | 0 | 0 | 0 | 6/22/18 15:26 | http://www.valleynewslive.com/content/news/New-poll-shows-close-race-for-US-Senate-Race-in-North-Dakota-485856391.html | general | 116 | Heitkamp | 11148 | Heidi Heitkamp | DEM | 44.0 |