Caucuses Seen as 'Very Important,' but 'You Have to Take...
Clip: 12/29/2011 | 11m 49s
Republican presidential hopefuls in Iowa shifted into campaign overdrive Thursday for the final leg before next week's first-in-the-nation Caucuses. Jeffrey Brown weighs the state's significance in the nominating process with Richard Norton Smith of George Mason University and Jeff Stein of the State Historical Society of Iowa.
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