CREATE TABLE table_name_21 (liberal_ticket VARCHAR, free_libertarian_ticket VARCHAR)

The Liberal Ticket listed which candidate when Jack A. Martin was listed on the Free Libertarian Ticket?
SELECT liberal_ticket FROM table_name_21 WHERE free_libertarian_ticket = "jack a. martin"
SELECT "liberal_ticket" FROM "table_name_21" WHERE "free_libertarian_ticket" = "jack a. martin"