Biden beating Trump by 4% is consistent with the results of the 2019 senate elections in VA, senate Republicans ran 1.5% ahead of Trump last year, which would equate to a 3.8% margin of defeat, Biden leads Trump by 4% which is basically the same margin. If Trump v Biden is basically going to be a straight R v D match-up, Trump doing about as well as Senate Republicans did in VA last year makes sense.
Not really buying that at all. Odd year elections famously slow down national trends. How does this make any more sense than saying Kentucky and Louisiana are toss ups in the presidential race based on the 2019 results?