What is public opinion, and what do all of those election polls and surveys actually mean? 
Learn more with Roper iPoll.
The Roper Center for Public Opinion Research has a collection of data and background information about polls, surveys, and elections. They also have resources that explain how to analyze and understand election and public opinion data.
More information about elections and politics:
Elections and Politics Guide
Ask a Librarian if you have questions about using Roper iPoll or any other Library resource.