christie. a lot of people are betting on new hampshire. so it's not exactly a surprise he's not doing so well in iowa, much more socially conservative, a lot of home schoolers there, sort of the culture issues are much more important to both there. and if you look at kasich's record, it's very different in terms of expanding medicaid. he's done things that don't sit well with the kind of voters that will be caucusing in iowa. >> we'll have the same conversation only entirely different next week. thank you. i always love having you. cnn will host three republican debates, the first one taking place in september. then in october cnn will host the first democratic presidential debate, so stay with us here on cnn for the latest on the race for the white house. coming up next, a chemical explosion so massive, this thing was visible from space. how much damage did it do to a city where 1 3 million people live and can they even get close