Amid the many debates about whether President Obama should use force against Syria has been three words: War Powers Resolution. It was passed in 1973 (despite a veto by then President Nixon) and was designed to involve Congress in any decision to send American troops into hostilities.

But the language of the law is open to interpretation, from what constitutes "hostilities" to what qualifies as an official notification of Congress.

Marco Werman talks over the many nuances of the War Powers Resolution and whether it applies to Syria with Bobby Chesney a law professor at University of Texas Law School and an editor of the blog Lawfare.

Local activists and Syrian-American supporters of Syrian President Bashar al-Assad hold up his image during an anti-war rally in front of a U.S. Armed Forces Recruiting Station in Times Square, New York August 29, 2013. REUTERS/Adrees Latif (UNITED STATES - Tags: CIVIL UNREST POLITICS CONFLICT TPX IMAGES OF THE DAY) - RTX1312I



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