* The Post reports that the city and the Nationals are tangling over whether vendors will be able to set up shop outside the ballpark, and whether the city can put up a sign at the ballpark showing the federal taxes that DC residents pay while not having any congressional representation. The sign stuff last came up at the end of 2007, and you can read my notes from the hearing on the bill where the council was basically told that the Nats legally control the signage on the stadium's interior, exterior, and perimeter, and today's article says that "the Nationals have told Gray that the sign is too controversial and political for a ballpark." At that hearing, as in today's article, council chair Vincent Gray made clear the council's feelings about paying $611 million for a ballpark and then not being able to put up a sign of their choosing. As for vendors, "Sam Williams, the city's vending coordinator, said vendors who were at RFK and others who have applied will get spots outside the stadium" in spots being referred to as "vendor malls", but right now no one's saying where these malls will be, exactly, other than in "areas of the highest pedestrian traffic."