brought iran to the negotiating table would be destroyed if this is rejected. mccaskill admitted the deal is not perfect but said the world is united behind the deal except for israel. 56% of americans believe congress should reject the agreement. let's turn to business where wall street followed stock declines around the globe yesterday. hadley joining us with the latest. what sparked the sell-off you think? >> manufacturing data coming out of china, six and a half year low. analysts telling me basically this maybes the last few weeks in the market a drop in the pan. we say a massive rally with terms investors piling in. gold rallying six week high as well as bonds looking to benefit off the back of this. u.s. futures going to open lower