The Media and US Politics
How the American media ecosystem shapes political reality, from the era of trusted network anchors to today's fragmented, partisan information landscape.
From Cronkite to Cable
For roughly three decades after World War II, Americans consumed political news from a shared set of sources. Three network broadcasters, ABC, CBS, and NBC, together reached over 90% of the viewing public. Anchors like Walter Cronkite were among the most trusted figures in America. This shared information environment created a common set of facts, even when people disagreed about policy.
The transformation began with CNN's launch in 1980, accelerated with Fox News and MSNBC in 1996, and became total with the rise of social media in the 2010s. Today, conservatives and liberals often consume entirely different news ecosystems. A 2020 Pew Research study found that 93% of Fox News viewers were Republican, while MSNBC's audience was 95% Democratic. Americans increasingly live in information bubbles where their existing views are reinforced and opposing perspectives are framed as threats.
