Why? Trump did lose Virginia in 2016 by a bit over 5%. Virginia has 2 democrat senators, a democrat governor, a democrat state house and a democrat state senate. So...exactly how is this poll wrong?
Trump also has everything west of Richmond and the swamp in Northern VA more than 100 counties (Charlottesville, invaded by rich techs and hedge fund types the exception) that rose up against our Klan regalia wearing governor who tried to impose gun restrictions. If they can turnout en masse, Trump can still overcome the government employee warrens of Northern VA.
All polls reflect the outcome the guy paying for it wants. That’s how they stay in business.