Remember the cold war? U.S. proxy Iran vs. Soviet proxy Iraq? U.S. fear of Arab socialism? The U.S. viewed Ba'ath regimes as enemies. After the Iranian Revolution, the Brzezinskis and the Haigs and the Clarks and the Shultzes viewed Iran as a bigger enemy--and were happy when they fought and hoped that Iraq would win.
But "support"? In more than a the-enemy-of-my-big-enemy-has-a-few-friendlike-qualities?
Brad DeLong