Hillary Rodham Clinton is taking on President Barack Obama with the same issue he used against her in the 2008 Democratic primary: foreign policy vision.

Obama lacks a specific doctrine, according to an Atlantic magazine interview with Clinton, the unannounced presidential candidate who is leading Democrats and Republicans in 2016 polling.

"Great nations need organizing principles, and 'don't do stupid stuff' is not an organizing principle," Clinton told the Atlantic's Jeffrey Goldberg, also a Bloomberg View columnist, in reference to the way Obama and his aides describe his approach to foreign policy.