本文主要以2012年美国总统大选为例,分析2012年美国总统大选期间传统媒体与新媒体发挥的不同作用以及媒体的一系列政治表现形式的发展,总结美国媒体在美国总统大选政治中的作用和影响,以进一步探讨媒体与政治的关系。 Taking the 2012 US presidential election as an example, this article analyzes the different roles played by traditional media and new media during the 2012 U.S. presidential election and the development of a series of political manifestations of the media. It summarizes the role of the U.S. media in the politics of U.S. presidential election and Influence, to further explore the relationship between media and politics.