POTUS won a group of swing states in 2016 by a combined 2 percentage points. But, as this poll shows, there does not appear to a late shift to POTUS.
More numbers:
PPP: IOWA: Biden 49%, Trump 48%
Research & Co.:
MICHIGAN: Biden 50%, Trump 43%
MINNESOTA: Biden 52%, Trump 43%
OHIO: Biden 47%, Trump 47%
PENNSYLVANIA: Biden 50%, Trump 44%
WISCONSIN: Biden 50%, Trump 42%
Frederick:
FLORIDA: Biden 51%, Trump 49%
NORTH CAROLINA: Biden 51%, Trump 49%
PENNSYLVANIA: Biden 52%, Trump 48%
