Former Secretary of State Colin Powell, a Republican who supported Democratic President Barack Obama in the 2008 election, said he's "not committed' to supporting Obama or a specific Republican candidate in 2012.

"I'm not committed to Barack Obama, I'm not committed to a Republican candidate," Powell, a retired Army general who was chairman of the Joint Chiefs of Staff, said on CNN's "State of the Union" program today.

Powell said he won't decide whom to vote for until he sees all the candidates. "Right now I do not see on the Republican side any one individual who I think is going to emerge at the top of the pile," he said.