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Why you should be skeptical about polls_00013303
Why you should be skeptical about polls_00013303

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    Why you should be skeptical about polls

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Why you should be skeptical about polls

Famed Iowa researcher J. Ann Selzer explains how viewers should interpret political polls and why polls are becoming harder and harder to conduct.

Why you should be skeptical about polls

Famed Iowa researcher J. Ann Selzer explains how viewers should interpret political polls and why polls are becoming harder and harder to conduct.