Ugh, thank you, but we didn't do well enough, clearly. And what is with Fox calling VA for Romney with 8% of the vote in?
This happens all the time, I don't know why people are continually shocked by this. CNN called Georgia for Gingrich with 0% of the vote in.
It's the combination of the exit polling AND the first voting returns. If the result is very clear in the exit polling and the exit polling in the districts that have vote totals in matches the actual votes, you can call the race.