“This year looks very different than previous election cycles,” said Stephen J. Farnsworth, a political-science professor at the University of Mary Washington in Fredericksburg.
“What you see in Prince William County generally, and in this district in particular, is a growing diversity, and that growing diversity is not an ally of a Republican candidate,” Farnsworth said. “The unpopularity of Trump may be creating an environment where a lot of Democrats are more motivated this fall than they were two or four years ago.”