President Trump waves on Friday after arriving on Air Force One at the Palm Beach International Airport to spend the weekend at Mar-a-Lago resort in West Palm Beach. It's the third straight weekend he's spent at his Florida resort. Joe Raedle/Getty Images hide caption
U.S. Secretary of Defense Chuck Hagel (left) walks with Vice Adm. Robert Harward (center), the deputy commander of U.S. Central Command, and Col. Kelly Martin, the vice commander of 6th Air Mobility Wing, after landing at MacDill Air Force Base in Tampa, Fla., in 2013. Erin A. Kirk-Cuomo/DoD hide caption
Then-deputy director of CENTCOM, U.S. Navy Vice Admiral Robert Harward, is pictured with Jordan's Prince Faisal and the Army's head of operations and training Major General Awni Adwan in a May 2012 photo. Harward is now under consideration to replace Michael Flynn as President Trump's national security adviser. Khalil Mazraawi/AFP/Getty Images hide caption