What candidate was re-elected in the Louisiana 5 district? 
CREATE TABLE "united_states_house_of_representatives_e" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" real,
  "result" text,
  "candidates" text
);
SELECT "candidates" FROM "united_states_house_of_representatives_e" WHERE "result"='Re-elected' AND "district"='Louisiana 5';