The Quinnipiac poll of Michigan is a bit of an outlier. Harris has been leading in most recent Michigan polls. It is probably just statistical noise. Nevertheless, if you look at the map today, it is Harris 251, Trump 251, and Wisconsin, Michigan, and Arizona all exact ties. It doesn't get much closer than this.
State | Kamala Harris | Donald Trump | Start | End | Pollster |
Michigan | 47% | 51% | Oct 03 | Oct 07 | Quinnipiac U. |
Pennsylvania | 49% | 47% | Oct 03 | Oct 07 | Quinnipiac U. |
Wisconsin | 47% | 49% | Oct 03 | Oct 07 | Quinnipiac U. |