Herschel Walker and Raphael Warnock were forced to keep campaigning through to the Dec. 6 runoff after neither candidate won more than 50 percent of the vote in their closely watched midterm general election, and have since ramped up their campaign ads and fundraising efforts. A Warnock win would mean Democrats increase their razor-thin majority in the Senate, while a Walker victory would keep their total to 50 seats, with the tiebreaker vote from Democratic Vice President Kamala Harris.