CREATE TABLE table_name_63 (prog_cons VARCHAR(255), dates VARCHAR(255), polling_firm VARCHAR(255), liberal VARCHAR(255))
According to the February 2009 poll by the Corporate Research Associates that reported 31% Liberal., what percentage aligned with the Prog. Cons. party?
    
SQL: SELECT prog_cons FROM table_name_63 WHERE polling_firm = "corporate research associates" AND liberal = "31%" AND dates = "february 2009"