Barack Obama all but erased Hillary Rodham Clinton's once-imposing lead among national convention superdelegates on Friday and won fresh labor backing as elements of the Democratic Party began coalescing around the Illinois senator for the fall campaign. Obama picked up the backing of nine superdelegates, including Rep. Donald Payne of New Jersey, a member of the Congressional Black Caucus who had been a Clinton supporter. In addition, the American Federation of Government Employees announced its support for Obama. The union claims about 600,000 members who work in the federal and Washington, D.C., governments. Obama, who won a convincing victory in the North Carolina primary and lost Indiana narrowly on Tuesday, has been steadily gaining strength in the days since.
See "Obama picks up 9 superdelegates, union endorsement", Associated Press, The New York Times, May 8, 2008