CREATE TABLE table_42091 ("Office" TEXT, "Democratic ticket" TEXT, "Republican ticket" TEXT, "American Labor ticket" TEXT, "Socialist ticket" TEXT)

Which Democrtic candidate ran against the Socialist candidate Edna Mitchell Blue?
SELECT "Democratic ticket" FROM table_42091 WHERE "Socialist ticket" = 'edna mitchell blue'
SELECT "Democratic ticket" FROM "table_42091" WHERE "Socialist ticket" = 'edna mitchell blue'