WHEN CONGRESS AND THE COMMANDER IN CHIEF CLASH OVER WAR by Hon. David J. Barron There is no greater test of our system of separation of powers than when the Commander in Chief and Congress clash over whether and how to fight a war. But from our earliest days as a nation—in fact, from before there even was a nation—there have been such clashes. And they have continued to the present. Building off his studies and his own experiences as a legal adviser in the United States Department of Justice on national security matters, the Hon. David Barron will review the ways some of our wisest chief executives (and those who have advised them) have handled the unique dilemma that arises when Congress challenges the Commander in Chief's preferred approach to waging war.