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    Ted Cruz and John Kasich team up to stop Donald Trump

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Ted Cruz and John Kasich team up to stop Donald Trump

CNN Politics Executive Editor Mark Preston and Emory psychology professor Drew Westen discuss GOP presidential candidates uniting to stop Donald Trump.

Ted Cruz and John Kasich team up to stop Donald Trump

CNN Politics Executive Editor Mark Preston and Emory psychology professor Drew Westen discuss GOP presidential candidates uniting to stop Donald Trump.