South Carolina GOP Senate runoff pits Graham against Norman

South Carolina voters are heading to the polls Tuesday in a special Republican primary runoff to decide who will fill the Senate seat left vacant by the death of Lindsey Graham. The contest pits interim Senator Darline Graham, the late senator's sister, against U.S. Representative Ralph Norman in a race that has become a test of political name recognition, presidential influence, and conservative credentials. The runoff follows an August 11 primary in which neither candidate secured a majority. The two-week campaign sprint has been marked by sharp contrasts.