In this March 26, 2018 photo, farmer Jeff Rehder looks over some of his pigs, in Hawarden, Iowa. Rehder stands to lose potential revenue on his hogs after China responded to Trump's announced plans to impose tariffs on products ... President Donald Trump's plan to impose tariffs on a range of Chinese goods has prompted threats from Beijing that it will tag U.S. products, including pork and aluminum, with an equal 25 percent charge.