Politics Magazine
These charts are from the CBS News / YouGov Battleground Poll -- done between August 28th and September 4th in 18 early voting states (Alabama, Arkansas, California, Colorado, Iowa, Maine, Massachusetts, Minnesota, Nevada, New Hampshire, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Utah, Vermont, and Virginia). They questioned 7,804 Democrats and Leaners in those states, and the margin of error is 1.8 points.