Showing that the media sees every act by the Obamas as an historic achievement, at the end of Sunday’s Face the Nation host Bob Schieffer was amazed by the romping of First Lady Michelle Obama: “Michelle Obama took it to another level as she set records as the first First Lady to run barefoot across the White House lawn. She also became the first to jump rope there.”Schieffer began his pointless rambling by looking at how past first ladies, all wives of Democratic presidents, shaped the position: There was a time when presidential wives were seen on occasion but almost...