(Dow Jones) -- USDA Secretary Sonny Perdue acknowledges farmers are fearful as China puts tariffs onto some US agricultural products and threatens more, but during an appearance in Ohio, he passes on a reassurance from President Trump. "I talked to the President as recently as last night," Perdue says. "And he said, 'Sonny, you can assure your farmers out there that we're not going to allow them to be the casualties if this trade dispute escalates. We're going to take care of our American farmers. You can tell them that directly.'"