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One unquestionable success of the Obama administration so far has been to turn the page on the failed Bush foreign policy framework.

Not so, says Robert Kagan, who reveals a perverse nostalgia for the previous paradigm in his recent writings in which he argues that the Obama administration is formulating foreign policy from a perspective that accepts, rather than fights, the decline of American power.

To understand this yearning for American policy of yore, you have to remember that American foreign policy leaders during the Bush administration clung to the false promise of primacy, the belief that the lynchpin of American security was for it to remain more powerful than all other countries by a huge, fixed margin.

Mona Sutphen and I described why this was a...