CREATE TABLE table_72404 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" CLOB, "Result" CLOB, "Candidates" CLOB)

List all candidates in the democratic party where the election had the incumbent Frank Chelf running.
SELECT "Candidates" FROM table_72404 WHERE "Party" = 'Democratic' AND "Incumbent" = 'Frank Chelf'
SELECT "Candidates" FROM "table_72404" WHERE "Incumbent" = 'Frank Chelf' AND "Party" = 'Democratic'