In this Friday, Sept. 25, 2015, file photo, Republican presidential candidate Donald Trump greets supporters before he delivers his message during a campaign rally at the state fair in Oklahoma City.
In this Friday, Sept. 25, 2015, file photo, Republican presidential candidate Donald Trump greets supporters before he delivers his message during a campaign rally at the state fair in Oklahoma City. J Pat Carter The Associated Press File
In this Friday, Sept. 25, 2015, file photo, Republican presidential candidate Donald Trump greets supporters before he delivers his message during a campaign rally at the state fair in Oklahoma City. J Pat Carter The Associated Press File