What time will they call it?
If they move some of the cabinet functions out of DC it becomes red.
When Fairfax County, Alexandria and Arlington know how many "misplaced votes" need to be discovered in the back of some registrar's van.
If the Democrat leads by 20 votes or more with 12% or more of the precincts in, they'll call it as soon as the polls close.
If, with 99% of the precincts reporting, Gillespie has a 75,000 or more vote lead, they might call it then.