The document discusses two theories - realism and liberalism - about the role of public opinion and media in influencing foreign policy decisions. It notes that the pluralist model suggests public opinion and media can shape foreign policy, while the elite model argues they are subservient to elite interests. As an example, the elite model is said to apply to Iraq. The document concludes by stating realism is skeptical of public opinion and media's impact, while liberalism believes they play a more important role.