Egghead (6) Roosevelt announced during the presidential campaign in 1932 that he had asked three Columbia University professors to help prepare his . After he won the election, President Roosevelt continued to use experts from outside the government to give him advice. Reporters soon began using the expression "brain trust" to describe a group of intellectual advisors who acted as Roosevelt's .    ´Ù¶ô¿ø ÊÊ 'Voice of America'¿¡¼­ ¹ßÃéÇÑ ³»¿ëÀÔ´Ï´Ù.