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INDIANAPOLIS, IN - APRIL 20:  Republican presidential candidate Donald Trump speaks to guests and supporters during a rally at the Indiana State Fairgrounds on April 20, 2016 in Indianapolis, Indiana. There are 57 delegates at stake in Indianas May 3 primary.  (Photo by Scott Olson/Getty Images)
INDIANAPOLIS, IN - APRIL 20:  Republican presidential candidate Donald Trump speaks to guests and supporters during a rally at the Indiana State Fairgrounds on April 20, 2016 in Indianapolis, Indiana. There are 57 delegates at stake in Indianas May 3 primary.  (Photo by Scott Olson/Getty Images)

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Donald Trump flip flops on key platform issues

CNN's Tom Foreman examines Donald Trump's changing stances on many of the key issues of his platform.

Donald Trump flip flops on key platform issues

CNN's Tom Foreman examines Donald Trump's changing stances on many of the key issues of his platform.