Overruling two of his senior legal advisers -- the Pentagon’s general counsel and the acting head of the Justice Department’s Office of Legal Counsel -- President Obama has decided that the U.S. is not engaged in “hostilities” in Libya. Obama has effectively nullified the War Powers Resolution (WPR), which requires the president to end hostilities within 60 days (with another 30 days to withdraw troops) unless he has received Congress’s authorization. In the Libyan war, the deadline for receiving Congressional approval or standing down passed on Friday. President Obama has done nothing to win Congress’s approval.