MONESSEN, Pa. (AP) -- Republican Donald Trump took aim at U.S. free trade deals in a speech delivered in Western Pennsylvania Tuesday that painted his likely Democratic rival Hillary Clinton as a champion of the kind of globalization that has pushed manufacturing jobs overseas.

"This wave of globalization has wiped out totally, totally our middle class," said Trump, standing in front of stacks of compressed metal on the floor of Alumisource, a plant that provides aluminum scrap and other raw materials to the aluminum and steel industries. "It doesn't have to be this way. We can turn it around and we can turn it around fast."

The speech, delivered in the heart of America's struggling rust belt, stressed a central premise of his campaign: that global free trade - a Republican Party staple for decades - has hurt American workers because deals have been negotiated poorly. Trump has vowed to bring back manufacturing jobs, in part, by slapping tariffs on goods produced by companies that move manufacturing jobs offshore.

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