signed, it is not a perfect arms agreement, it is not a french of treaty, but when america gives your word, you have to live up to it. jenna: former u.s. ambassador to iraq he worked in that time with general mattis, great to have you on the program. what did you make of the response about the controversial iranian nuclear deal? i think general mattis is spot on. he knows as much as anybody i ve been up there with him when we have been faced with iranian threats that iran is extremely serious threat to the entire region. it s not a country we can have, as he said, a friendship pact with, but he knows however that the nuclear agreement has now been signed and is going to be hard to roll that back. the main problem is how do we contain iran in its efforts throughout the region? that is the thing he will have to focus on along with the entire trump administration. jenna: this is something you know very well, iran has a