The correct answer is A. Franklin Delano Roosevelt
President Franklin Delano Roosevelt was unsuccessful in his attempt to "pack" the Supreme Court with political loyalist.
Step-by-step explanation
Franklin Delano Roosevelt (1882-1945) was an American politician who was noted for being President of the United States during World War II from 1933 until he died in 1945 (the same year the war ended). One of his most popular political actions was the failure of his Judicial Reorganization Bill in 1937 by which he wanted to expand the number of judges of the United States Supreme Court to grant positions in this institution to loyal politicians. However, this bill was not approved by the majority of senators and congressmen of both parties. According to the above, the correct respect is A.