president_primary_polls: 2777
| 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 | start_date | end_date | sponsor_candidate | internal | partisan | tracking | nationwide_batch | created_at | notes | url | stage | party | answer | candidate_id | candidate_name | pct |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2777 | 116259 | 63379 | 2020 | 1490 | YouGov Blue/Data for Progress | YouGov Blue/Data for Progress | 547 | YouGov Blue/Data for Progress | 1619 | lv | lv-d | Online | U.S. President | 1/18/20 | 1/27/20 | 0 | 0 | 0 | 1/28/20 19:22 | head-to-head poll | https://www.politico.com/news/2020/01/28/survey-warren-polls-better-against-biden-than-sanders-108289 | primary | DEM | Biden | 13256 | Joseph R. Biden Jr. | 53.0 |