Abstract
Mass media play an extremely important role in the development process of democratic countries. Since the widespread dissemination of paper media and public media such as cable television and radio, more and more new media platforms have begun to appear in the daily lives of citizens as technology advances, excluding the traditional model of government-funded or non-profit media reporting news. This article will focus on the evolution of traditional public media news coverage and how they have gradually changed the public perception of public media in response to social events. The essay will then discuss some of the role’s media coverage has played in the political sphere and the reasons why the phenomenon of political polarization has arisen. In addition, the article includes a reference to how polarized views in real life are deviated from what one would expect. However, with the emergence of commercial media platforms, media coverage needs to be made more reliable through reasonable regulatory measures, and citizens need to understand that news coverage is always topical and limited, and that they need to rely moderately on online social media to avoid over-reliance on the same environmental circle and thus social disengagement.