Nate Silver leans toward Warnock as 'favorite' to win Georgia runoff

A top pollster is leaning toward Sen. Raphael Warnock winning reelection and defeating Republican challenger Herschel Walker in a race now heading toward a runoff.

FiveThirtyEight's Nate Silver said on ABC News's This Week that he sees merit in betting markets, which are showing a 70% chance that Warnock will keep his seat. If Warnock wins, it will be the first time that no Georgia senator incumbent has lost since 1914.

Silver pointed to Warnock's 49.5%-48.5% advantage in the first round of voting. He said that Georgia Gov. Brian Kemp's reelection may have helped bring Republican voters to the polls but that Kemp will not be on the runoff ballot for Warnock and Walker.