
Nate Cohn @Nate_Cohn
Basically, the 'good polls' have been better for Biden than average (which hasn't always been true and may not always be!). When we go without those polls, Biden's lead shrinks as the more prevalent polls, somewhat better for Trump, control the average. https://t.co/DrapQWzacT — PolitiTweet.org
DJGrizzBear @DJGrizzBear
@Nate_Cohn Could you expand on that?