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
Abortion has long been a contentious issue in the United States, and it is one that sharply divides Americans along partisan, ideological and religious lines.
Today, a 59% majority of U.S. adults say abortion should be legal in all or most cases, while 39% think abortion should be illegal in all or most cases. These views are relatively unchanged in the past few years. The latest Pew Research Center survey, conducted April 5 to 11, finds deep disagreement between – and within – the parties over abortion. In fact, the partisan divide on abortion is far wider than it was two decades ago.
In the latest survey, Democrats and Democratic-leaning independents are 45 percentage points more likely than Republicans and Republican leaners to say abortion should be legal in all or most cases (80% vs. 35%). This gap is little changed over the last few years, but the current divide is wider than it was in the past. For instance, as recently as 2016, there was a 33-point gap between the shares of Democrats (72%) and Republicans (39%) who supported legal abortion in all or most cases.