I don't think he was incorrect, this is just additional data with different X/Y scales. He is showing the blue dots as Biden, showing the relationship between the two along the same x-axis, with the y-axis now being "candidates performance amongst own party"
I don't think he was incorrect, this is just additional data with different X/Y scales. He is showing the blue dots as Biden, showing the relationship between the two along the same x-axis, with the y-axis now being "candidates performance amongst own party"