Tweeted President Trump on 21 May:

I am pleased to announce my nomination of Barbara Barrett of Arizona, and former Chairman of the Aerospace Corporation, to be the next Secretary of the Air Force. She will be an outstanding Secretary! #FlyFightWin

Barbara (nee McConnell) Barrett (born December 26, 1950) is an American businesswoman and diplomat. Barrett is former chair of the Aerospace Corporation and a member of the boards of California Institute of Technology, Jet Propulsion Laboratory, RAND Corporation, Smithsonian Institution, Horatio Alger Association of Distinguished Americans, and Lasker Foundation.