Nobody can dispute that Barack Obama opposed the Iraq war from the start and, with striking prescience, predicted U.S. troops would be mired in a costly conflict that fanned "the flames of the Middle East." But nobody should accept at face value the Illinois senator's claim that he was a "courageous leader" who opposed the war at great political risk. The truth is that while Obama showed foreign policy savvy and an ability to keenly analyze both sides of an issue in his October 2002 warnings on Iraq, the political upside of his position rivaled any risk. And, once elected...