The Senate voted 53 to 47 to reject a resolution to block the president’s use of force against Iran without congressional approval.

How we got to a situation where a President can reasonably claim that it is lawful, without congressional approval, to bomb a country that has not attacked the U.S.

The failure of the resolution adds to a post-Global War on Terrorism trend of Congress ceding its constitutional power to decide when to send U.S. troops into harm's way.