How Partisan Media Polarize America

Forty years ago, viewers who wanted to watch the news could only choose from among the major broadcast networks, all of which presented the same news without any particular point of view. Today we have a much broader array of choices, including cable channels offering a partisan take. With partisan programs gaining in popularity, some argue that they are polarizing American politics, while others counter that only a tiny portion of the population watches such programs and that their viewers...