The Michigan poll conducted by Gravis also found Biden ahead of Trump 51-42 in the state.
The other three surveys of the Senate races in Arizona, North Carolina, and Maine were each conducted by Public Policy Polling, rated B by FiveThirtyEight.
The Michigan poll conducted by Gravis also found Biden ahead of Trump 51-42 in the state.
The other three surveys of the Senate races in Arizona, North Carolina, and Maine were each conducted by Public Policy Polling, rated B by FiveThirtyEight.