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Sen. Ted Cruz, R-Texas, arrives for a walk-through for his Monday morning speech where he will launch his campaign for president of the United States at Liberty University on Sunday, March 22, 2015 in Lynchburg, Va. Cruz will be the first major candidate in the 2016 race for president. (AP Photo/Andrew Harnik)
Sen. Ted Cruz, R-Texas, arrives for a walk-through for his Monday morning speech where he will launch his campaign for president of the United States at Liberty University on Sunday, March 22, 2015 in Lynchburg, Va. Cruz will be the first major candidate in the 2016 race for president. (AP Photo/Andrew Harnik)

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    Ted Cruz is first to declare for 2016

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Ted Cruz is first to declare for 2016

John King takes a look at Sen. Ted Cruz's entry into the 2016 presidential race with Lisa Lerer and Jackie Kucinich.

Ted Cruz is first to declare for 2016

John King takes a look at Sen. Ted Cruz's entry into the 2016 presidential race with Lisa Lerer and Jackie Kucinich.