The article is devoted to a cognitive analysis of the frame-scenario “discreditation” in the political discourse. The material taken is Barack Obama’s speech in the final US presidential debates on October 22, 2012. As seen from the results, the frame-scenario «discreditation» can be viewed as a series of components. There are five of them: stimulus – approval – criticism – approval – conclusion. Due to conceptual analysis of the two main components, i.e. approval and criticism, it is possible to find out their dominant meanings.