Pew Research Center
The Pew Research Center is an American "fact tank" based in Washington, D.C. that provides information and data on issues, attitudes and trends shaping the United States and the world. It was established in 2004 as a nonpartisan subsidiary of Pew Charitable Trusts.
The group's Journalism.org site focuses research on public opinion and issues within news media. It's research is often cited in media bias research done by AllSides, including the 2014 Where News Audiences Fit on the Political Spectrum study.
Sources: Pew Research and Wikipedia
The most significant pandemic of our lifetime arrived as the United States was experiencing three major societal trends: a growing divide between partisans of the left and right, decreasing trust in many institutions, and a massive splintering of the information environment.
COVID-19 did not cause any of this, but these forces fueled the country’s divided response. Looking back, nearly three-quarters of U.S. adults (72%) say the pandemic did more to drive the country apart than to bring it together.