Trump tells Pennsylvania voters that trade war has helped economy
He took aim at Democratic front-runner and former Vice President Joe Biden. "He didn't take care of you because he didn't take care of your jobs," Trump said.
Trump previewed the arguments he will make to voters in the 2020 election, crediting his trade stance with helping the US economy.
"When you have the best employment numbers in history, when you have the best unemployment numbers in history, when you have the best economy probably that we've ever had, I don't know - how the hell do you lose this election, right?," he said.
Trump has waged a high-stakes trade dispute with China, and tariffs imposed by both countries on a range of goods have raised fears of a global economic slowdown.