A three-Judge appellate court in Virginia tossed out Shelly Simonds’ one-vote victory over a 17-year Republican incumbent. It invalidated one ballot, where the voter checked both names. That left the vote a tie. The winner will be chosen randomly, like the toss of a coin.

The loser might appeal for another recount.

https://www.washingtonpost.com/local/virginia-politics/court-tosses-out-one-vote-victory-in-recount-that-had-briefly-ended-a-republican-majority-in-virginia/2017/12/20/ed979a70-e5b9-11e7-a65d-1ac0fd7f097e_story.html

If Simonds wins, the House of Delegates would be 50-50. If she loses, the Republicans would cling to a 51-49 majority.