By Ali Elkin

Former Maryland Gov. Martin O'Malley sounded Sunday like someone who plans to challenge Hillary Rodham Clinton in Democratic primaries.

Appearing on ABC's"This Week," O'Malley said the country needs "new perspective" and "new leadership."

"Let's be honest here," O'Malley said. "The presidency of the United States is not some crown to be passed between two families."

O'Malley also suggested that a Clinton nomination is not a sure thing, possibly alluding to the 2008 primaries, when she was also thought to have had it locked down.

"History is full of times when the inevitable frontrunner is inevitable right up until he or she is no longer inevitable," he said.

O'Malley said he would decide whether to run sometime in the spring.

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