In California we get "day of" counts and then most of the time mail-in votes keep coming in for weeks and several races usually flip.
Not saying that's cheating but it creates a loss of confidence.
When Abraham Lincoln ran in 1860, he spent the day at the telegraph office, where the staff read him the returns as they came in. By the end of the day he was pretty sure he had won, and congratulations were coming in.
We ought to be able to at least equal that performance today.