Political communication is a precondition of democracy, and democracy depends heavily on the infrastructure of the media system. The media and mediated communication are of central relevance for contemporary societies due to their decisive influence on, and consequences for, political institutions, political actors, and individual citizens. Political actors have learnt to accept that their behavior to a significant extent is influenced by the rules of the game set by the mass media. This transformation has been described as a shift to audience democracy (Manin 1995) or media democracy (Jarren 2008a). The idea of media democracy is an extension of the model of representative democracy. It refers to a development that at its beginning aimed to make politics more inclusive and transparent. In the process policy-makers have become accountable to an ever growing volume of interests and demands from the public - not only in the context of elections but in many phases of the policy process. The pressure on policy-makers to be responsive to public opinion in general and special interests in particular has increased the role of the mass media in many ways. Politicians have grown to rely on the mass media for gauging public opinion (using media coverage as a proxy for public sentiments), and for generating attention, acceptance, and legitimation of their actions (using media channels for public presentation of politics).