Based on tenets of Comparative Foreign Policy, we look into what roles the American speaker may have played. First of all, we like to examine how different constitutional systems may have allowed for disparate participation in foreign affairs. It is noted that under the presidential system, Taiwan may have more opportunities to influence American Congress if the government is divided, meaning the opposition congress either or both houses of Congress. We then classify congressmen/congresswomen's involvement into foreign policy making in a spectrum from latter oversights, prior consultations, to full cooperation. Before we are able to make any suggestion to Taiwan's speaker, we like to survey some congressional personalities' active contributions to, if not interferences in, American foreign policy making.