Good morning, Washington. Today will be mostly cloudy with a 40 percent chance of thunderstorms. Stadium Planning Process Contentious: What do you get when you mix the D.C. Sports and Entertainment Commission, Major League Baseball, the fragil egos D.C. government, and a red-hot real estate market in Near Southeast? The answer is a convoluted planning process described by the Post in an article today where the architect has conflicting instructions and city leaders can’t seem…