Darline Graham is projected to win the Republican runoff for a Senate seat. She will replace her late brother, Senator Lindsey Graham, on the general election ballot. Graham was appointed by Governor Henry McMaster to complete her brother's term after his sudden death in July.

She had the support of President Donald Trump, who endorsed her for a full Senate term before she announced her candidacy. Trump also campaigned with her before the runoff. Graham had been leading in the primary.

Further details about the election and Graham's campaign are available from the source, including the role of key endorsements in her projected win.