CREATE TABLE table_name_89 (csa_5_20_09 VARCHAR, ifop__la_croix_5_15_09 VARCHAR)
Which Ipsos 5/16/09 has an Ifop- La Croix 5/15/09 of 26%?
SELECT csa_5_20_09 FROM table_name_89 WHERE ifop__la_croix_5_15_09 = "26%"