A CNN survey conducted by SSRS from January 14-18, 2018, involved 1,005 respondents and assessed opinions on public figures such as Bernie Sanders, Oprah Winfrey, and Joe Biden. Key findings include Sanders with a 57% favorable rating, Winfrey at 64%, and Biden at 58%. The survey also explored voter preferences for hypothetical 2020 presidential candidates, showing Sanders leading Trump 58% to 39%, while Biden would lead 59% to 37%.