The main topic of my diploma thesis is political marketing and presidential election in USA in 2008. Firstly, I described American society through its demographic, racial, social and religious aspects. Then I wrote about public opinion and political socializing of individuals, how they are created and learned through individuals' lives. Political ideology in USA is represented by two mainstream political trends: liberals and conservatives. Thesis then describes strategy in politics, planning of political campaigns and marketing communication in politics. Second part of my thesis describes presidential election in USA in 2008. Introduction is focused on two main candidates: Barack Obama and John McCain. Then it continues with main points and highlights of each presidential campaign. Special part is focused on presidential debates which are very popular in American society. Besides main candidates, thesis describes also vice president candidates and wives of presidential candidates. The final part of the thesis is focused on financial aspect of elections and funding in politics.