maintained heavy presence on fox news the past week including praising trump's decision on north korea. >> thank you very much. outfront next experts for the hour. thanks to you will an of you. sam, you worked as former security adviser for obama, for president obama. this is a major shake-up when you look at it, obviously, timing tbt and we know the president likes to spring it on people with surprise as he did this morning with rex tillerson. what does this mean, mcmaster, possible kelly. what? >> i think it could all actually be a red hearing. the president does not use his staff like other presidents have in the past. we are hearing about state department for example rex tillerson was a lame duck. he wasn't functioning as secretary of state. so his removal may not throw anything off course. could be outstanding question is whether mike pompeo is going to be authorized to act like a secretary of state to suggest policy, to implement policy.