The poll conducted by the University of Mary Washington between September 3 and 9 showed that Harris is just 1 point ahead of Trump in the Old Dominion state, on 47 percent to his 46 percent, among 756 Virginia likely voters—a lead well within the survey's margin of error of +/- 4.1 percent.

The Teamsters broke with the union tradition of backing Democrats on Wednesday. Here's a look at how it is different from other major unions.