and vali nasr, a former state department senior adviser.now dean at the johns hopkins school of advanced international studies. vali nasr, how significant is the fall of ramadi? >> i think symbolically very significant. ramadi is the capital of anbar. psychologically, it boosts the position of the region, helps the recruitment and suggests that they are far from on their back hill. >> ifill: derek harvey the pentagon spokesman said today not to read too much into. this what do you read into it? >> i think it clearly shows the islamic state is not losing, which means we're not winning, and we need to re-think our approach, how we're resourcing this effort and our determination to assist the iraqi security forces and bolster prime minister abadi. i think most importantly that prime minister abadi could become weakened and further isolated which would undermine the major political effort that we've had in play in iraq. we've invested a lot in him and his opponents will use this as another arrow to undermine his political stature in the country