CREATE TABLE table_18673 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

who are the candidates with district being kansas 4
SELECT "Candidates" FROM table_18673 WHERE "District" = 'Kansas 4'
SELECT "Candidates" FROM "table_18673" WHERE "District" = 'Kansas 4'