In 1973, the U.S. Congress passed the War Powers Act. How did the Act reassert congressional authority relative to that of the President?

Under the War Powers Act of 1973, the President can send combat troops to battle (or to an area where hostilities are imminent) for only 60 days, with the possibility of extending this period of time to 90 days. In order to keep deployed troops in place (or to send additional troops) after this period of time has elapsed, the President must seek Congressional approval, either in the form of a mandate or in the form of a declaration of war. Congress was responsible for approving war-related funding prior to the War Powers Act, which did not affect this responsibility.