Being United a democratic nation, the public opinion is very important to the process of creating laws. Even Though some argue that the American society relies on the theory of majoritarianism, other argues that American public opinion represented in government through pluralism or interest groups (book). In the U.S. the influence of interest groups on policy making process is significant. The Public culture of the U.S. Everyone has his/her interest and wants to protect and promote their interests. The best way to do so is to be part of organizations of people with shared goals. Interest groups can influence government exposing their ideas and convincing the government of their position. Chemical Engineers also have their interest groups that