CREATE TABLE table_18536 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

who is the candidate where district is louisiana 3?
SELECT "Candidates" FROM table_18536 WHERE "District" = 'Louisiana 3'
SELECT "Candidates" FROM "table_18536" WHERE "District" = 'Louisiana 3'