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Republican presidential candidate, Sen. Ted Cruz, R-Texas, speaks during a caucus night rally, Monday, Feb. 1, 2016, in Des Moines, Iowa. Cruz sealed a victory in the Republican Iowa caucuses, winning on the strength of his relentless campaigning and support from his party's diehard conservatives.(AP Photo/Chris Carlson)
Republican presidential candidate, Sen. Ted Cruz, R-Texas, speaks during a caucus night rally, Monday, Feb. 1, 2016, in Des Moines, Iowa. Cruz sealed a victory in the Republican Iowa caucuses, winning on the strength of his relentless campaigning and support from his party's diehard conservatives.(AP Photo/Chris Carlson)

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    Ted Cruz: It's been a remarkable victory

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Ted Cruz: It's been a remarkable victory

Republican presidential candidate Ted Cruz talks to CNN's Dana Bash about his victory in Iowa.

Ted Cruz: It's been a remarkable victory

Republican presidential candidate Ted Cruz talks to CNN's Dana Bash about his victory in Iowa.