Maybe partly him, but I just get the sense in general that Trump is having issues in rural areas... Like, they aren't going to revert to 2012 levels of Dem support or anything like that, but that he could lose a few percentage points in some of these states anyway. And that would matter a lot, particularly in the northern swing states.
Some of Kamala's campaign choices in PA, going to Johnstown and Wilkes-Barre, places that have swung hard right since Trump showed up on the scene, tells me they are seeing something as well in their own data