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DES MOINES, IA - JANUARY 25:  Democratic presidential candidate Senator Bernie Sanders (I-VT) participates in a town hall forum hosted by CNN at Drake University on January 25, 2016 in Des Moines, Iowa. Sanders is in Iowa trying to gain support in front of the states Feb. 1 caucuses.  (Photo by Justin Sullivan/Getty Images)
DES MOINES, IA - JANUARY 25:  Democratic presidential candidate Senator Bernie Sanders (I-VT) participates in a town hall forum hosted by CNN at Drake University on January 25, 2016 in Des Moines, Iowa. Sanders is in Iowa trying to gain support in front of the states Feb. 1 caucuses.  (Photo by Justin Sullivan/Getty Images)

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    Bernie Sanders: Wall Street tax will pay for college

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Bernie Sanders: Wall Street tax will pay for college

During the Iowa Democratic town hall, Sen. Bernie Sanders says he would tax Wall Street in order to allow all Americans the ability to pay for college.

Bernie Sanders: Wall Street tax will pay for college

During the Iowa Democratic town hall, Sen. Bernie Sanders says he would tax Wall Street in order to allow all Americans the ability to pay for college.