CREATE TABLE table_18512 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

Name the candidates for result of lost renomination democratic loss
SELECT "Candidates" FROM table_18512 WHERE "Result" = 'Lost renomination Democratic loss'
SELECT "Candidates" FROM "table_18512" WHERE "Result" = 'Lost renomination Democratic loss'