Dr. Tabakian's political science lecture discusses the growing inequality in America due to international trade and deunionization, alongside the declining trust and cynicism of the masses towards government. It highlights the increase in intolerance towards unpopular groups and shifts in political sentiments, suggesting a rise of counterelites and the role of mass media in shaping public opinion. The presentation also emphasizes the media’s political functions, including agenda-setting and the portrayal of candidates, which influence voter perceptions and engagement.