一项针对总统修辞学方面的详细研究也证明即便是富兰克林·罗斯福或者罗纳德·里根这样的著名演说家都无法仅靠个人魅力来推动政策项目。
One careful study of presidential rhetoric found that even such famous orators as Franklin Roosevelt and Ronald Reagan could not count on charisma to enact their programs.