Polls
Iowa Senate - Ernst vs. Greenfield
RCP Senate Map | Senate Polls | RCP House Map | Generic Vote | RCP Governor Map | Governor Polls | All 2020 Polls
RCP Senate Map | Senate Polls | RCP House Map | Generic Vote | RCP Governor Map | Governor Polls | All 2020 Polls
RCP Senate Map | Senate Polls | RCP House Map | Generic Vote | RCP Governor Map | Governor Polls | All 2020 Polls
Iowa Snapshot
RCP Average: Ernst +1.4
RCP Ranking: Toss Up
Key 2020 Races: President | Senate | IA-1 | IA-2 | IA-3 | IA-4
----------PAST KEY RACES----------
2018: Governor | IA-1 | IA-2 | IA-3 | IA-4
2016: President | Senate | IA-1, IA-3
2014: Governor | IA-1 | IA-2 | IA-3 | IA-4
2012: President | IA-1 | IA-2 | IA-3 | IA-4
2010: Governor | Senate | IA-1 | IA-2 | IA-3
2008: President
2006: Governor | IA-1 | IA-3
Polling Data
| Poll | Date | Sample | MoE | Ernst (R) | Greenfield (D) | Spread |
|---|---|---|---|---|---|---|
| Final Results | -- | -- | -- | 51.8 | 45.2 | Ernst +6.6 |
| RCP Average | 10/23 - 11/2 | -- | -- | 47.2 | 45.8 | Ernst +1.4 |
| PPP (D)PPP (D) | 11/1 - 11/2 | 871 LV | -- | 47 | 48 | Greenfield +1 |
| InsiderAdvantage*InsiderAdvantage* | 10/30 - 10/30 | 400 LV | 4.9 | 51 | 45 | Ernst +6 |
| EmersonEmerson | 10/29 - 10/30 | 604 LV | 3.9 | 44 | 48 | Greenfield +4 |
| Des Moines RegisterDM Register | 10/26 - 10/29 | 814 LV | 3.4 | 46 | 42 | Ernst +4 |
| QuinnipiacQuinnipiac | 10/23 - 10/27 | 1225 LV | 2.8 | 48 | 46 | Ernst +2 |
Polling Data
| Poll | Date | Sample | MoE | Ernst (R) | Greenfield (D) | Spread |
|---|---|---|---|---|---|---|
| Final Results | -- | -- | -- | 51.8 | 45.2 | Ernst +6.6 |
| RCP Average | 10/23 - 11/2 | -- | -- | 47.2 | 45.8 | Ernst +1.4 |
| PPP (D)PPP (D) | 11/1 - 11/2 | 871 LV | -- | 47 | 48 | Greenfield +1 |
| InsiderAdvantage*InsiderAdvantage* | 10/30 - 10/30 | 400 LV | 4.9 | 51 | 45 | Ernst +6 |
| EmersonEmerson | 10/29 - 10/30 | 604 LV | 3.9 | 44 | 48 | Greenfield +4 |
| Des Moines RegisterDM Register | 10/26 - 10/29 | 814 LV | 3.4 | 46 | 42 | Ernst +4 |
| QuinnipiacQuinnipiac | 10/23 - 10/27 | 1225 LV | 2.8 | 48 | 46 | Ernst +2 |
| Who-TV 13**Who-TV 13** | 10/21 - 10/24 | 693 LV | 4.0 | 45 | 51 | Greenfield +6 |
| EmersonEmerson | 10/19 - 10/21 | 435 LV | 4.7 | 46 | 45 | Ernst +1 |
| NY Times/Siena*NYT/Siena* | 10/18 - 10/20 | 753 LV | 3.9 | 45 | 44 | Ernst +1 |
| InsiderAdvantage*InsiderAdvantage* | 10/18 - 10/19 | 400 LV | 4.9 | 43 | 48 | Greenfield +5 |
| Monmouth*Monmouth* | 10/15 - 10/19 | 501 LV | 4.4 | 47 | 49 | Greenfield +2 |
| CBS News/YouGovCBS News | 10/6 - 10/9 | 1035 LV | 3.5 | 43 | 47 | Greenfield +4 |
| QuinnipiacQuinnipiac | 10/1 - 10/5 | 1256 LV | 2.8 | 45 | 50 | Greenfield +5 |
| Who-TV 13**Who-TV 13** | 9/23 - 9/26 | 780 LV | 4.0 | 39 | 51 | Greenfield +12 |
| Monmouth*Monmouth* | 9/18 - 9/22 | 402 LV | 4.9 | 46 | 49 | Greenfield +3 |
| NY Times/Siena*NYT/Siena* | 9/16 - 9/21 | 501 LV | 5.0 | 40 | 42 | Greenfield +2 |
| Des Moines RegisterDM Register | 9/14 - 9/17 | 658 LV | 3.8 | 42 | 45 | Greenfield +3 |
| Monmouth*Monmouth* | 7/30 - 8/3 | 401 LV | 4.9 | 48 | 47 | Ernst +1 |
| Des Moines RegisterDM Register | 6/7 - 6/10 | 674 LV | 3.8 | 43 | 46 | Greenfield +3 |
| PPP (D)PPP (D) | 4/30 - 5/1 | 1222 RV | 2.8 | 43 | 42 | Ernst +1 |
