American media is dominated by large corporations that control around 90% of outlets. With deregulation and consolidation, a few powerful conglomerates own multiple types of media in the same markets. While newspapers and broadcast TV were once dominant, the internet has become a major source of news, fragmenting audiences and making messages harder for politicians to control. Politicians rely heavily on media to communicate but also criticize coverage. They work to manage their portrayal by emphasizing daily themes and working with journalists.