Wisconsin State Journal: “Biden leads Trump 49% to 44% among registered voters in both Wisconsin and Pennsylvania in the latest poll. In Michigan, Biden leads 50% to 42%. Biden’s lead narrows slightly among likely voters to 50% over Trump’s 46%. The margin of error in each state is between +/- 4.21 and 4.66 percentage points. The online poll was conducted Sept. 10-21 by YouGov, which has also done polls for CBS News, The Economist and other news outlets. There were 800 respondents surveyed in each of the three battleground states. It is the third poll this year conducted by the Elections Research Center and sponsored by the State Journal.”