With 2536/2541 precincts reporting, Democratic candidate Mark Herring trails Republican Mark Obenshain by only 153 votes.
AP Results (VA-AG)
This follows the slow narrowing of the margin over the night, along with adjustments as AP found errors in its count. The person who I have noticed most up to date on this is @redistrict, Dave Wasserman, who is the US House editor of Cook Political Report. His Twitter:
Dave Wasserman
It has been an interesting race to follow tonight, but the outcome will probably be determined tomorrow and/or with a recount. Have a good night
Tue Nov 05, 2013 at 11:11 PM PT: Update 2:10am EST: AS a number of people have already noted in the comments, the updated toals show that with 2537/2541 precincts reporting, Mark Herring now leads by 616 votes!