http://www.newsweek.com/donald-trump-cant-be-left-alone-john-kelly-james-mattis-military-war-decisions-645082
"President Donald Trump can’t be left alone to make decisions regarding matters of national security—at least, that is reportedly the view of his new chief of staff, John Kelly, and of his defense secretary, James Mattis. The two military men, who Trump affectionately refers to as "my generals," hatched a plan during the initial months of his presidency to ensure he wasn’t left alone while in the U.S., the Associated Press reported Tuesday. Kelly and Mattis agreed to schedule their travel arrangements so at least one of them could be physically accessible to the new president at all times, an official with knowledge of the pact said."