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  • Need to Know

Need To Know | Did Rick Perry Fall Victim to Tip of the Tongue Phenomenon? | PBS

Duration: 02:20
Program: Need to Know #209
Broadcast Date: Nov. 10, 2011

In Need to Know's web series "Presidentiality," we look at Rick Perry's potentially campaign-ending mental block at this week's Republican presidential debate in Michigan, and ask if he may have been suffering from a common cognitive phenomenon known as "Tip of the Tongue."

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Post Date: November 10, 2011