Obama: There is 'some evidence' Syria's Assad used chemical weapons

President Barack Obama said Tuesday that the U.S. has evidence that chemical weapons were used in Syria’s brutal civil war but that it remains unclear who used them.In a White House press conference, Obama said there is “some evidence” that the regime of Syrian President Bashar Assad used the weapons, but urged against rushing to judgment, saying more facts must be known before any action should b...    

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