CREATE TABLE table_2668243_22 (party VARCHAR2, result VARCHAR2, district VARCHAR2)

What 'party' was re-elected in district South Carolina 7?
SELECT party FROM table_2668243_22 WHERE result = "Re-elected" AND district = "South Carolina 7"
SELECT "party" FROM "table_2668243_22" WHERE "Re-elected" = "result" AND "South Carolina 7" = "district"