It is officially a trade war. Pro Farmer Washington Analyst Jim Wiesemeyer looks at what comes next as the markets react to the trade war with China with a shrug. And is Scott Pruitt's departure from the Environmental Protection Agency really good news for the biofuels industry? Wiesemeyer gives hints that the shifts at EPA could bring resolution to the simmering battle between biofuels and oil on this week's DC Signal to Noise podcast.