Edwards says Obama "likely" nominee; Clinton "in a very tough place."

CHICAGO–Former presidential candidate John Edwards said Sunday on CBS’ “Face the Nation” that Barack Obama is the “likely” nominee. Edwards is continuing to decline to endorse. David Axelrod said he expects more superdelegates to be announced in the coming days. Edwards said Hillary Rodham Clinton is “in a very tough place.”

Clinton campaign chairman Terry McAuliffe sent a warning not to pressure Clinton to shut down her race or risk “alienating” her supporters. “The race is very close,” said McAuliffe–counting the disputed states of Michigan, Florida and Puerto Rico, whose residents can vote in the primary but not the general election.