Donors, activists and members of Congress who backed former Sen. John Edwards (D-N.C.) are flocking to Sen. Barack Obama (D-Ill.). This and the fact that Obama is likely to win the North Carolina primary could prompt Edwards to endorse Obama -- a move that could burnish the front-runner's credentials with blue-collar, white voters, who are part of Sen. Hillary Rodham Clinton's (D-N.Y.) base.
