This chapter addresses media in politics, including newspapers, television, the internet, and social media. It seeks to answer the question of how influential the media is over politics, in areas such as voting behaviour. This discussion gives a broad overview of politics and the media, about the agenda of politics and its framing, and what shapes it. The chapter then covers the classic question of the influence of the media in British politics. It also considers the importance of social media, and how it is now part of all media today, especially in relation to elections and referendums. Finally, the chapter looks at media and social media campaigning in elections. It introduces the concept of chaotic pluralism as a way of characterizing today's social media-dominated and fluid political environment.