Obama : U.S. concludes ` ` the Syrian government '' carried out chemical attacks . He also ` ` PBS NewsHour '' that he 's ` ` not made a decision '' about military action in Syria . NATO questions Obama 's assessment that the attack poses a security threat . However , Democratic Rep. Adam Smith of Washington said that `` the historical precedence is no , that the president does n't require congressional action for a variety of different things . '' McCain urges robust action ; others warn of an open , open - ended conflict .
Obama : U.S. concludes ` ` the Syrian government '' carried out chemical attacks . He also ` ` PBS NewsHour '' that he 's ` ` not made a decision '' about military action in Syria . NATO questions Obama 's assessment that the attack poses a security threat . McCain urges robust action ; others warn of an open , open - ended conflict .