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Republican presidential candidate Ted Cruz (R-TX), speaks to supporters at the Presidential Family Forum on November 20, 2015 in Des Moines, Iowa.
Republican presidential candidate Ted Cruz (R-TX), speaks to supporters at the Presidential Family Forum on November 20, 2015 in Des Moines, Iowa.

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    As support for Cruz surges in Iowa, can he overtake Trump?

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As support for Cruz surges in Iowa, can he overtake Trump?

Republican presidential candidate Ted Cruz has seen a surge in support in Iowa, but can Cruz knock the front-runner Donald Trump from the top spot? CNN's Sunlen Serfaty reports.

As support for Cruz surges in Iowa, can he overtake Trump?

Republican presidential candidate Ted Cruz has seen a surge in support in Iowa, but can Cruz knock the front-runner Donald Trump from the top spot? CNN's Sunlen Serfaty reports.