
Andrew Kohut, president of the Pew Research Center in Washington, D.C., and director of the Pew Research Center for The People and The Press, talked about public opinion and the 2008 presidential race. This program was sponsored by the Center for the Study of Politics and Governance.
The above graph and others like it are available here from the Pew Research Center for The People and the Press.
Listen to audio (61 mins 14 secs)