john kerry said administraon has evidence the assad regime used chemical weapons that killed more than 1,000 syrians, including hundreds of children. kerry said being war weary does not allow us to turn the other cheek. >> we know after a decade of conflict, the american people are tired of war. believe me, i am, too. but fatigue does not take our responsibility. just longing for peace does not necessarily bring it about. >> with more on the syrian crisis, how it's playing out in washington, and what might happen next, we turn to john harwood. a lot of words out today. what more can we gleam about the timing of a possible strike against syria? basically, what happens now? >> they haven't signalled the timing, susiusie, but it looks e a strong likelihood we'll strike, sooner rather than later. the president leaves for st. petersburg on tuesday, the meeting at the g 20 and congress comes back on the 9th of september. i would be surprised if the strike has not happened before both of those things take place. >> and what do you expect the president to hear from the g 20 people if it hasn't