Social movements are essentially collective actions by disadvantaged, and often minority, groups taken to empower themselves and push for change on political and social issues. What differentiates social movements from interest groups is that social movements have a more organic and less structured approach: "Interest groups have letterhead (as well as their headquarters and executive directors ). This is not the case for social movements. To summarize Sidney Tarrow's definition in Power in Movement, social movements are collective challenges based on common goals and social solidarities in sustained interaction with elites, opponents and authorities. It can be seen as people from excluded groups collectively attempting to mobilize political leverage to bring about change in the current situation and advance common interests through non-traditional means. It is important to recognize that significant demographic changes are accompanied by the growing role that ethnoracial minorities will play in reshaping politics in the United States, in terms of political participation, legislative representation, political opinions, which in the long run term, will affect the political landscape and policies. In the book Political Process and the Development of Black Insurgency, 1930-1970, Doug McAdam presents the political process model of social movement emergence, which he presents as "an alternative to traditional resource mobilization perspectives." ". McAdam proposes that the political process model can be used to explain the emergence of social movements. The model suggests that social movements result from a combination of factors, arising from broad socio-economic processes. In this article, I will analyze the prospects for successful emergence...... middle of article ......e Affirmative Action in California divides Asian-American community | The nation. Internet. April 3, 2014. Green, Lloyd. The daily beast. Newsweek/Daily Beast. Internet. April 1, 2014. .McAdam, Doug. Political process and the development of the black insurgency, 1930-1970. Chicago: University of Chicago, 1982. Print. McClain, Paula Denice. and Joseph Stewart. “Can we all get along?” »: Racial and ethnic minorities in American politics. Boulder, Colorado: Westview, 1995. “Not Black and White” Print. The economist. The Economist Journal, March 22, 2014. Web. April 3. 2014. .