DES MOINES, June 7 (Reuters) - More than $20 billion of $140 billion of U.S. farm exports has or is likely to have retaliatory tariffs against it as a result of trade disputes with countries such as China and Mexico, the United States Trade Representative's chief agricultural negotiator said on Thursday.
Mexico put tariffs on American products ranging from steel to pork and bourbon on Tuesday, retaliating against import duties on steel and aluminum imposed by U.S. President Donald Trump. China also has imposed tariffs on U.S. pork and other products.