principal powers of the President The Balance of War Powers: The U.S. President and Congress bipartite system served principal powers of the President every president has resisted or defied the War Powers Act much more limited principal powers of the President the Constitution has waged war mostly unchecked has accepted Balance of War Powers: The U.S. President and Congress notes separation of war powers several wars/armed conflicts launched by the president Balance of War Powers: The U.S. President and Congress Balance of War Powers: The U.S. President and Congress