CNN's director of polling and election analytics Jennifer Agiesta on election preparations, polling standards, and more

Why are political polls trustworthy? What are TV networks doing to prepare for Election Night? Brian Stelter asks Jennifer Agiesta, the director of polling and election analytics for CNN. Agiesta talks about the impact of millions of early votes; the role of the decision desk; and the process for making projections. She also addresses common misconceptions about polling and the findings from CNN’s new polling project called The Breakthrough. To learn more about how CNN protects listener privacy, visit cnn.com/privacy