This document discusses the historical development of journalism and politics in the United States from the nation's founding to today. It covers the evolution of media from the early partisan press through the rise of radio, television, and the internet. Key topics analyzed include the objective journalism era, the Communications Act of 1934 and Fairness Doctrine, the end of the Fairness Doctrine and rise of cable news networks with partisan formats, and the emergence of partisan radio and internet news sites. The roles of journalism are also examined, including its signaling, common carrier, watchdog, and partisan functions. Finally, the document addresses the partisan and information divides among modern news audiences.