This research further examines the video entitled "what is the truth about post-factual politics?" about the case in the United States related to Trump and in the UK related to Brexit. The phenomenon of Post truth/post factual also occurs in Indonesia as seen in the political struggle experienced by Ahok in the governor election (DKI Jakarta). Through Michel Foucault's approach to post truth with assertive logic, the mass media is constructed for the interested parties and ignores the real

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... ty. The conclusion of this study indicates that new media was able to spread various discourses ranging from influencing the way of thoughts, behavior of society to the ideology adopted by a society.Keywords: Post factual, post truth, new media