The content originally appeared on: CNN Now, key nations in Central America are following President Andr?s Manuel L?pez Obrador's lead, dispatching only lower-level delegates instead of their leaders. And by the time Biden arrives to the summit Wednesday, questions over the event's invitation list and attendees will have obscured its larger purpose, a source of frustration to administration officials who didn't necessarily expect the mess. The decision by several countries to stay away from the southern California gathering, a protest […]