Public opinion has important role in democracy because the people are the ultimate source of power. Governmental official has to account and pay attention to public opinion in deciding for policies. Public opinion can shape and change policies and any governmental official cannot ignore this important. The United States as a democratic country in during its political history is an obvious instance to show importance of the public opinion and role of the people.
Latest poll that have been done in United States by Gallup research center was about greatest enemy of United States according public opinion of American people. They have done this poll six times in six years and in conclusion of all researches Iran is elected