mick mull vainy and barely on speaking terms with the secretary of state mike pompeo. essentially, you saw this coming and one evidence of that is at the g7 summit in france just a few weeks ago, john bolton was tentatively scheduled to go on the sunday shows and defending the administrations and he said he was uncomfortable defending their position on russia which you know had become a big topic during that summit and essentially his aides were defending it by saying they believed larry kudlow or a steven mnuchin was better suited on defending their position on tariffs and that showed you that if you work in a trump white house you have to be willing to go on tv and defend the president's policies and that's something that john bolton wasn't willing to do during that summit and now the president says he's going to announce has fourth national security adviser next week. until then, bolton's deputy, charlie cumberland is going to take over in the meanwhile, erin? >> thank you very much. he's had more national security advisers in the past three years