Following is an end-of-the-week roundup on some percolating policy matters: Steel Tariffs: President Trump signed the steel and aluminum tariff order yesterday. However, Mexico and Canada were exempted to allow the NAFTA renegotiations to continue. The EU has already drafted a retaliation list that includes some non-major but politically important products: peanut butter, impacting top peanut state and home to USDA Secretary Sonny Perdue; bourbon, which comes from Senate Majority Leader Mitch McConnell’s home state of Kentucky; and cranberries, a key product of House Speaker Paul Ryan’s home state of Wisconsin. It also targets two non-ag iconic American products, Harley Davidson motorcycles (also from Ryan’s Wisconsin) an...