Republican presidential candidate Donald Trump speaks at a rally and picnic, Saturday, July 25, 2015, in Oskaloosa, Iowa.
Republican presidential candidate Donald Trump speaks at a rally and picnic, Saturday, July 25, 2015, in Oskaloosa, Iowa. Charlie Neibergall AP
Republican presidential candidate Donald Trump speaks at a rally and picnic, Saturday, July 25, 2015, in Oskaloosa, Iowa. Charlie Neibergall AP

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