With the June Acreage and Grain Stocks reports past, the CBOT resumed trading its favorite variable for the peak of summer – weather. For Tuesday’s trade, this meant a focus on five-year highs in corn ratings and an excellent outlook for the crop into mid-July at least, which were two factors helping push corn futures to new contract lows. Soybeans found a bit more support, primarily from political developments on Capitol Hill as the Senate blocked the use of biofuel tax credits for non-North American-sourced feedstocks. Wheat futures rallied and scored modest gains as conditions deteriorated last week for both the winter and spring wheat crops, which sparked a small flurry of short covering.  The biggest driver of action t...