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DES MOINES, IA-SEPTEMBER 19: Republican Presidential Candidate Donald Trump speaks at the Iowa Faith & Freedom Coalition 15th Annual Family Banquet andPresidential Forum held at the Iowa State fairgrounds on September 19, 2015 in Des Moines, Iowa.  Eight of the Republican candidates including Trump are expected to attend the event. (Photo by Steve Pope/Getty Images)
DES MOINES, IA-SEPTEMBER 19: Republican Presidential Candidate Donald Trump speaks at the Iowa Faith & Freedom Coalition 15th Annual Family Banquet andPresidential Forum held at the Iowa State fairgrounds on September 19, 2015 in Des Moines, Iowa.  Eight of the Republican candidates including Trump are expected to attend the event. (Photo by Steve Pope/Getty Images)

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    Donald Trump dodges questions about Obama's citizenship

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Donald Trump dodges questions about Obama's citizenship

When Donald Trump tries to sow doubt about Pres. Obama's citizenship, how should media figures respond? Brian Stelter speaks to Newsmax TV host Steve Malzberg.

Donald Trump dodges questions about Obama's citizenship

When Donald Trump tries to sow doubt about Pres. Obama's citizenship, how should media figures respond? Brian Stelter speaks to Newsmax TV host Steve Malzberg.