Neither a cold-blooded realist nor a bleeding-heart idealist, Barack Obama has a split personality when it comes to foreign policy. So do most U.S. presidents, of course, and the ideas that inspire this one have a long history at the core of the American political tradition. In the past, such ideas have served the country well. But the conflicting impulses influencing how this young leader thinks about the world threaten to tear his presidency apart — and, in the worst scenario, turn him into a new Jimmy Carter.
Pat McMahon Contributor