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The Science of Political Polling

Why is it that sometimes election exit polls seem to be right on the money, while other times election results can surprise even expert analysts? Polling experts explain how to conduct a reliable poll and what factors can influence a poll's outcome.


Andrew Kohut, president of the Pew Research Center; director of Pew Research Center for the People and the Press and the Pew Global Attitudes Project

Charles Franklin, professor of political science at the University of Wisconsin, Madison; co-developer of

Karlyn Bowman, senior fellow at the American Enterprise Institute for Public Policy Research

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