Donald TrumpDonald John TrumpKey takeaways from the Arizona Senate debate Major Hollywood talent firm considering rejecting Saudi investment money: report Mattis says he thought 'nothing at all' about Trump saying he may leave administration MORE walked on stage at his Pennsylvania rally Thursday night to the theme music from the movie "Rocky," famously set in Philadelphia. 

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Following an introduction from legendary Indiana basketball coach Bobby Knight, the Republican presidential nominee took the stage in Chester Township, Pa. 

Reporters at the rally were also tweeting images of a Rocky Balboa statue in a Trump shirt at the venue.