Democrats Eye Upset in South Carolina as Republicans Grow Concerned

In South Carolina, Republican Sen. Darline Graham is facing a competitive challenge from Democrat Annie Andrews for a full Senate term. Graham was appointed in July to replace her late brother, Sen. Lindsey Graham, and is now fighting to hold the seat in what has traditionally been a reliably red state. CNN's Dianne Gallagher reports that Republicans are growing increasingly concerned about their chances as the race tightens. The contest has drawn national attention as a potential bellwether for the midterm elections. Andrews has mounted a vigorous campaign, and recent polling suggests a closer race than many anticipated. The outcome could have significant implications for the balance of power in the Senate. CNN provides in-depth coverage of this and other key races across the country. Discover more videos, including live streams and exclusive storytelling, on our Watch page. Stay informed with CNN's political reporting.