Democratic incumbent Raphael Warnock, left, and Republican challenger Herschel Walker are heading to a run-off in Georgia for the state's US Senate seat. Reuters
Democratic incumbent Raphael Warnock, left, and Republican challenger Herschel Walker are heading to a run-off in Georgia for the state's US Senate seat. Reuters

US midterms: Raphael Warnock and Herschel Walker head to run-off in Georgia senate race