Obama closing in on Clinton's advantage among superdelegates
Apr 30, 2008 - WASHINGTON — Barack Obama is closing in on Democratic presidential rival Hillary Rodham Clinton's advantage among superdelegates, building on his lead in the primary race even as he faces troubled times.
Party leaders are encouraging superdelegates to pick a side by late June to prevent the fight from going to the national convention in August, and it seems some are listening as the race enters…

