Dem
51
GOP
49
Arizona polling is all over the map, but it is likely to be close there. Nevada looks like it could be more trouble for Biden than expected. He is going to have to show up there more than he planned, but at least a trip to Nevada can be combined with a trip to Arizona. (V)
| State | Joe Biden | Donald Trump | Start | End | Pollster |
| Arizona | 44% | 45% | May 06 | May 13 | BSG + GS for Cook |
| Arizona | 45% | 43% | May 19 | May 21 | Florida Atlantic U. |
| Georgia | 38% | 42% | May 06 | May 13 | BSG + GS for Cook |
| Massachusetts | 68% | 32% | May 16 | May 20 | U. of New Hampshire |
| Michigan | 45% | 47% | May 06 | May 13 | BSG + GS for Cook |
| North Carolina | 41% | 48% | May 06 | May 13 | BSG + GS for Cook |
| North Carolina | 42% | 44% | May 02 | May 09 | High Point U. |
| New Hampshire | 52% | 48% | May 16 | May 20 | U. of New Hampshire |
| Nevada | 40% | 49% | May 06 | May 13 | BSG + GS for Cook |
| Nevada | 43% | 51% | May 19 | May 21 | Florida Atlantic U. |
| Pennsylvania | 45% | 48% | May 06 | May 13 | BSG + GS for Cook |
| Rhode Island | 60% | 40% | May 16 | May 20 | U. of New Hampshire |
| South Dakota | 31% | 50% | May 10 | May 13 | Mason Dixon |
| Wisconsin | 45% | 45% | May 06 | May 13 | BSG + GS for Cook |