CREATE TABLE table_18287 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

Who's the incumbent of the Louisiana 1 district?
SELECT "Incumbent" FROM table_18287 WHERE "District" = 'Louisiana 1'
SELECT "Incumbent" FROM "table_18287" WHERE "District" = 'Louisiana 1'