Cheney kept secret resignation letter
Former US vice-president Dick Cheney kept a secret resignation letter locked away in a safe in case he were ever to be incapacitated, he reveals in his new book.
White House press secretary Robert Gibbs, one of President Barack Obama's top advisers, is resigning to become an outside political adviser for Obama's re-election campaign as part of a major staff shake-up Gibbs, 39, a fierce loyalist and defender of the president during near-daily White House news briefings, will leave in early February, aides said.