CREATE TABLE table_1342218_5 (district VARCHAR, result VARCHAR, incumbent VARCHAR)

Which district has the incumbent Wilbur Mills and a re-elected result?
SELECT district FROM table_1342218_5 WHERE result = "Re-elected" AND incumbent = "Wilbur Mills"
SELECT "district" FROM "table_1342218_5" WHERE "Re-elected" = "result" AND "Wilbur Mills" = "incumbent"