I recall some Virginia insider in the know was predicting a Northam landslide in the early morning based on turnout, then by the afternoon was saying things were neck in neck. I never trust what these people say. Just find out when the votes are counted.
I tend to hold the same opinion, but Ralston is the exception that proves the rule. I don't think he has got a call wrong in recent history, and he is trying to project a swing state with a history of horrible polling. If there is ever a guru, its him.
Is Ralston predicting a Rosen win?
He's not projecting anything, as far as I know.