This is a busy week for the agricultural policy world. The administration is engaged in trade negotiations with China as well as NAFTA partners Mexico and Canada, and the House is dealing with both the farm bill and the FY 2019 appropriations bill. Chinese Vice Premier Liu He is in Washington, DC with a delegation of trade negotiators this week. While the trade talks are much broader than agriculture, U.S. farm exports to China are a big component of the discussion. Those exports were valued at about $19.6 billion in 2017, and the administration believes they can grow to $50 billion. Currently, China’s $10 billion in soybean purchases represent more than one-half of the total value of exports for that commodity. All other commodity...