Vice President Joe Biden did not need Air Force Two Thursday night to travel across the Potomac River to McLean, Va., to the home of former Democratic Virginia Gov. and Sen. Chuck Robb. It was, of course, a fundraiser, designed to help finance three freshman Democratic House candidates -- Glenn Nye, Gerry Connolly and Tom Perriello -- in their challenging reelection races 13 months from now in what once was a predictably GOP state. Robb himself did not speak at the event. His wife, Lynda, daughter of President Lyndon B. Johnson, introduced the trio of representatives. But it looks like...