Republican presidential nominee former President Donald Trump speaks at a campaign event at a farm, Monday, Sept. 23, 2024, in Smithton, Pennsylvania.Former President Donald Trump on Monday threatened John Deere with a 200% tariff if the agricultural manufacturer moves production to factories in Mexico."They've announced a few days ago that they're going to move a lot of their manufacturing business to Mexico," the Republican nominee said at a policy roundtable in Smithton, Pa., hosted by the Protecting Ame ...