| Poll | Date | Sample | MoE | Clinton (D) | Rubio (R) | Spread |
|---|---|---|---|---|---|---|
| Quinnipiac | 6/4 - 6/15 | 1191 RV | 2.8 | 45 | 42 | Clinton +3 |
| PPP (D) | 6/4 - 6/7 | 859 RV | 3.3 | 44 | 44 | Tie |
| Quinnipiac | 3/17 - 3/28 | 1077 RV | 3.0 | 47 | 38 | Clinton +9 |
| Quinnipiac | 5/7 - 5/12 | 1174 RV | 2.9 | 47 | 40 | Clinton +7 |
| Quinnipiac | 2/12 - 2/17 | 1370 RV | 2.7 | 50 | 36 | Clinton +14 |
| Quinnipiac | 11/19 - 11/24 | 1361 RV | 2.7 | 48 | 39 | Clinton +9 |