
Nate Silver @NateSilver538
Empirically, the best prediction comes from taking a ~2:1 ratio of the total-party margin to the top-two margin. Republicans won the total party vote by 1%, but Warnock won the top-two vote by 7%. That would imply that Warnock might actually have won a two-candidate race on 11/3. — PolitiTweet.org