Antony J. Blinken, Vice President Biden’s national security adviser, is said to be under consideration for Rice’s job at the United Nations, as is Samantha Power, the National Security Council’s senior director for multilateral affairs and human rights.
It was unclear who would take Brennan’s job if he leaves government or moves to the CIA. He was the top contender to lead the agency when Obama was elected in 2008, but he withdrew under criticism, which he deemed unfair, of his role in intelligence excesses in the administration of George W. Bush. Although that challenge is now seen as behind him, officials said he has not indicated whether he would like to be considered again to head the agency where he spent 25 years.
Beyond complicating the overhaul of the national security team, Petraeus’s departure will send ripples through management layers at the CIA.
Many had expected Petraeus to stay in place for Obama’s second term, and he had spent recent months planning transitions at other key posts at CIA headquarters. Now, four of the agency’s most critical positions — director, deputy director, head of the National Clandestine Service and chief of the Counterterrorism Center — have become question marks.