 Republicans formerly held six of the eight Virginia House of Delegates seats that include parts of the county, with that delegation having consisted Robert G. Marshall, Scott Lingamfelter, Tim Hugo, Jackson Miller, Rich Anderson, and Mark Dudenhefer.In the 2017 legislative election, which saw the Democrats cut a Republican majority in the House of Delegates from 66 to 51, Prince William County saw its number of Republican Delegates be reduced from six to one, with Tim Hugo being the sole Republican to represent the county.Marshall, Lingamfelter, Miller, and Anderson all ran for reelection and were defeated by Democratic challengers Danica Roem, Elizabeth Guzmán, Lee Carter, and Hala Ayala respectively.