background where when the president, whether it's republican or democrat asks you to do something, you just roll up your sleeves and go to work. so when there came a point that i thought i was no longer part of the solution under the way he wanted to operate, then i put it in the letter, publicly, and the president was always very straightforward with me. i was straightforward with him and we parted ways, yes. >> martha: i have got to go. the discussion there was sort of an agreement between you and john kelly and h.r. mcmaster that together you were going to stick with it. even if it was difficult in the administration because of your duty to the country. >> well, you always have to stick with it to your duty. now, there comes a point where if you don't think you are contributory to success, then it has to be reconsidered. >> martha: did the three of have you an agreement like that. >> no. no. we served according to probably a creedo of the u.s. military because we had