CREATE TABLE table_name_55 (appointed_by VARCHAR(255), title VARCHAR(255), representative VARCHAR(255))
What is the Appointed by that has the Title of Ambassador Extraordinary and Plenipotentiary and has a Representative of Spruille Braden?
    
SQL: SELECT appointed_by FROM table_name_55 WHERE title = "ambassador extraordinary and plenipotentiary" AND representative = "spruille braden"