CONTENTION FOR WAR POWER BETWEEN THE CONGRESS AND THE PRESIDENT Yang Jian（7） The contention for war power between U.S. Congress and the President has been occurring intermittently for a long time. The President has won more than lost in the scramble. War power was almost totally in his hands during the Vietnam War. All the efforts that the Congress made to regain the war power were all along unsuccessful. It can be expected that the President will continue to have the power at his discretion in the future.