Jennifer Wexton is leading U.S. Rep. Barbara Comstock among all potential voters by 10 points, 49 to 39, with 12 percent undecided or supporting someone else in Virginia’s CD-10 race, according to a Monmouth University poll released Tuesday, June 26. Half of the voters in CD-10 identify themselves as independents, and Virginia Democratic State Sen. Wexton leads among this group by 45% to…