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JULY 25: Republican presidential candidate, New Jersey Governor Chris Christie speaks to the press after greeting people at the Italian American Heritage Festival on July 25, 2015 in Des Moines, Iowa. A recent poll had Christie trailing most of his Republican rivals in Iowa. Christie is hoping to gain support in the state with several campaign stops scheduled over this weekend. (Photo by Scott Olson/Getty Images)
JULY 25: Republican presidential candidate, New Jersey Governor Chris Christie speaks to the press after greeting people at the Italian American Heritage Festival on July 25, 2015 in Des Moines, Iowa. A recent poll had Christie trailing most of his Republican rivals in Iowa. Christie is hoping to gain support in the state with several campaign stops scheduled over this weekend. (Photo by Scott Olson/Getty Images)

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    Christie: Impossible to forcibly deport 11 million

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Christie: Impossible to forcibly deport 11 million

Gov. Chris Christie said Donald Trump's immigration proposals are impractical, pointing to the impossibility of deporting 11 million illegal immigrants.

Christie: Impossible to forcibly deport 11 million

Gov. Chris Christie said Donald Trump's immigration proposals are impractical, pointing to the impossibility of deporting 11 million illegal immigrants.