WASHINGTON (AP) — Ten Republicans will compete in a special primary election Tuesday to replace the late U.S. Sen. Lindsey Graham on South Carolina’s general election ballot. Among those challenging her in the special primary are U.S. Reps. Russell Fry and Ralph Norman, former Gov. If no candidate receives a vote majority in the special primary, the top two vote-getters will advance to a special primary runoff on Aug. 25. Voters who participated in the Democratic primary on June 9 may not participate in the special Republican primary on Tuesday. Only Republican primary voters or registered voters who did not participate in any party’s primary may cast ballots in Tuesday’s election.